merge: orchestration

# Conflicts:
#	.yoi/tickets/00001KX6CRVBE/item.md
#	.yoi/tickets/00001KX6CRVBE/thread.md

.yoi/objectives/00001KWW44EXK/item.md

@@ -2,8 +2,8 @@
 title: "Runtime working directory materialization and sandboxed agent environments"
 state: "active"
 created_at: "2026-07-06T16:28:12Z"
-updated_at: "2026-07-07T12:40:00Z"
+updated_at: "2026-07-10T16:50:00Z"
-linked_tickets: ["00001KWPC13WQ", "00001KWMBAA6V"]
+linked_tickets: ["00001KWPC13WQ", "00001KWMBAA6V", "00001KX6BPY7M", "00001KX6CRVBE"]
 ---
 
 ## Goal
@@ -34,7 +34,8 @@ Yoi は Workspace / Repository / Runtime を分ける方針になっている。
 
 - Runtime root: Runtime が自身の store、cache、Worker metadata、working directory allocation を管理する root。長期的には `~/.yoi/runtimes/<runtime-id>/` 配下など、Workspace backend store とは別に置く。
 - Repository cache: Runtime-local の共有 source/cache。Git なら bare mirror / object cache / packfile cache など。重く、長寿命で、複数 Worker allocation から共有される。
-- working directory: Worker ごとの作業環境。短寿命で、Worker が読み書きする root / mounts / scratch / overlay を含む。Browser-facing UI/API では `Workspace` と混同しないよう、この呼称に寄せる。`Volume` は storage backing の候補名であり、この作業領域そのものの呼称にはしない。
+- working directory: Worker ごとの作業環境。短寿命で、Worker が読み書きする root / mounts / scratch / overlay を含む。Browser-facing UI では `workspace` と混同しないよう `workdir` と表示してよい。`Volume` は storage backing の候補名であり、この作業領域そのものの呼称にはしない。
+- Worker record: 作業単位として保存する record。profile、Runtime、RepositoryPoint / workdir evidence、session/transcript refs、status、diagnostics、summary、pinned flag を束ねる。Session 単体ではなく Worker を保存・削除の単位にする。
 - Materialization strategy: RepositoryPoint から working directory を作る実装戦略。Git detached worktree、sparse checkout、CoW snapshot、reflink copy、overlay、container filesystem など。
 - WorkingDirectoryAllocation: Runtime が払い出した作業環境の record。allocation id、worker id、workspace id、repository point、materializer kind、root、mounts、cleanup policy、status を持つ。
 - Sandbox policy: Worker が見られる filesystem、network、process、secret、tool authority の境界を表す policy。
@@ -286,6 +287,21 @@ Rift の filtered CoW creation のように、重い artifacts を除外しな
 - Runtime が複数 Workspace / Repository の Worker を同時に抱える場合の namespace、quota、cleanup、audit boundary を固める。
 - remote/self-hosted/hosted Runtime fleet で repository cache と working directory storage をどう扱うかを設計する。
 
+### 7. Worker / Session / workdir retention and cleanup policy
+
+- Worker を保存・削除単位にする。Session / transcript は Worker に内包または参照される履歴として扱い、Session 単体を長期保存 authority にしない。
+- Worker lifecycle は `running -> stopped -> delete` を基本にする。`archived` を lifecycle state として導入しない。
+- Worker には `pinned` flag を持たせる。Pinned Worker は manual delete / cleanup / future automatic prune から守られる。
+- Worker delete は Worker record と内包する Session / transcript history の削除を意味する。Workdir files は自動削除しない。
+- Session / transcript は削除可能にする。圧縮 archive storage や高度な summarized retention は必要になった時点で別の storage policy として設計する。
+- Workdir 実ファイルは durable history ではなく再現可能 cache として扱う。RepositoryPoint / resolved commit から再現でき、dirty/uncommitted state が無いなら、running Worker に紐づかない workdir files は manual cleanup eligible とする。
+- Dirty Workdir は活動中または要判断状態として扱う。削除は可能だが、changes ごと消す explicit confirmation を要求する。Dirty orphan は recovery Worker 起動または explicit discard の判断対象であり、通常の clean cleanup と区別する。
+- Workdir record は materialization evidence として扱う。実ファイルが削除済みなら `removed`、外部要因で欠落しているなら stale/missing materialization として診断可能にする。
+- Worker と Workdir の関係は Backend registry の link table を authority にする。Worker record は最後に活動した RepositoryPoint / resolved commit / workdir binding summary を保持し、Stopped Worker + Removed Workdir でも必要に応じて再 materialize できるようにする。
+- Cleanup/delete は当面 manual-first にする。削除前に対象、理由、削除される bytes、blocking conditions（running Worker、pinned Worker、dirty state、unreachable commit など）を plan として提示する。
+- 将来的には容量/期限ベースの automatic prune を設定可能にする予定。ただし automatic prune は user-configured policy と pinned protection を前提にし、初期の manual cleanup/delete とは別段階で扱う。
+- UI 表示は `workdir` に寄せる。内部型/API の互換名 `working_directory` は移行中に残ってよいが、Browser-facing navigation では Runtime 管理配下の `Workdirs` として扱う。
+
 ## Non-goals
 
 - v0 で完全な container sandbox を実装すること。
@@ -307,6 +323,9 @@ Rift の filtered CoW creation のように、重い artifacts を除外しな
 - Runtime process 起動時の `--workspace` は legacy bootstrap input として隔離され、Runtime identity や single workspace binding とみなされない。
 - Worker ごとの scope allocation conflict が、同一 source root を直接渡す設計ではなく materialized workspace allocation によって解消される。
 - Sandbox / mount / cache / secret boundary を後続実装で強化できる model になっている。
+- Worker record が Session / transcript refs と pinned flag を束ね、`pinned` Worker を cleanup/delete/future automatic prune から守れる。
+- Workdir 実ファイルは再現可能 cache として manual cleanup/delete でき、削除前に plan-first で linked Worker、session retention、commit reachability、dirty/missing 状態を確認できる。
+- 将来的に容量/期限ベースの automatic prune を user-configured policy として追加できる設計余地がある。
 
 ## References
 

.yoi/profiles.toml

@@ -1 +1,3 @@
 default = "builtin:companion"
+
+[profile]

.yoi/tickets/00001KX1JNJ2Y/artifacts/orchestration-plan.jsonl

@@ -0,0 +1 @@
+{"id":"orch-plan-20260709-075750-1","ticket_id":"00001KX1JNJ2Y","kind":"accepted_plan","accepted_plan":{"summary":"`00001KWZ5KERY` Decodal/ProfileSourceArchive と `00001KX0DSMPT` Workspace/Profile settings が closed/merged 済み。ProfileSourceTree virtual filesystem と Decodal editor follow-up を実装開始する。","branch":"work/00001KX1JNJ2Y-profile-source-tree","worktree":"/home/hare/Projects/yoi/.worktree/00001KX1JNJ2Y-profile-source-tree","role_plan":"単一 sibling Coder Pod に implementation worktree を委譲し、ProfileSourceTree virtual FS model/resolver、ProfileSourceArchive tree-based builder、Runtime archive virtual-path loader validation、scoped file-tree settings API、Decodal CodeMirror editor UI、tests/Nix dependency update を実装する。完了後、別 sibling Reviewer Pod で Ticket IntentPacket / path-redaction / import-resolution authority boundary / acceptance criteria に照らして read-only review する。"},"author":"orchestrator","at":"2026-07-09T07:57:50Z"}

.yoi/tickets/00001KX1JNJ2Y/artifacts/relations.json

@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "relations": [
+    {
+      "ticket_id": "00001KX1JNJ2Y",
+      "kind": "depends_on",
+      "target": "00001KWZ5KERY",
+      "note": "ProfileSourceTree builds on the Decodal ProfileSourceArchive migration and refines import/source graph handling.",
+      "author": "yoi ticket",
+      "at": "2026-07-08T19:19:23Z"
+    }
+  ]
+}

.yoi/tickets/00001KX1JNJ2Y/item.md

@@ -0,0 +1,167 @@
+---
+title: 'Add ProfileSourceTree virtual filesystem and Decodal profile editor'
+state: 'closed'
+created_at: '2026-07-08T19:18:25Z'
+updated_at: '2026-07-09T09:18:48Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-09T07:56:07Z'
+---
+
+## 背景
+
+Decodal Profile は import を持つため、Profile source を単一文字列や RDB-like な正規化モデルだけで扱うと破綻する。Backend は Workspace/Profile source の正本を持つが、Browser / Runtime に host absolute path や raw filesystem authority を出してはいけない。
+
+そのため、Backend-owned な仮想 filesystem abstraction として `ProfileSourceTree` を導入する。ユーザーや Browser editor は file tree / relative path として Decodal source を扱い、Backend はその tree revision から import closure を解決して `ProfileSourceArchive` を生成する。Runtime は `ProfileSourceArchive` の manifest / virtual path だけを見て Decodal import を解決し、Workspace filesystem は読まない。
+
+既存 Ticket `00001KWZ5KERY` は Decodal ProfileSourceArchive migration を扱った。これは closed 済みなので、本 Ticket はその follow-up として virtual FS / source tree layer と Browser editor を追加する。
+
+## 実装順序
+
+- depends_on: `00001KWZ5KERY` — Decodal ProfileSourceArchive / archive verify / Runtime FSなし resolution の基礎。
+- 本 Ticket: `ProfileSourceTree` virtual filesystem、import resolver / archive builder、Backend/Profile settings file-tree API、Decodal profile editor を実装する。
+- 後続: formatter、advanced editor integrations、runtime-local artifact sync は別 Ticket とする。
+
+## 実装目的
+
+- Decodal import を Backend authority で決定的に解決できる。
+- Browser editor は host path ではなく virtual relative path の file tree を編集する。
+- Runtime は Workspace filesystem を読まず、archive manifest 内 virtual path だけで import を解決する。
+- `ProfileSourceArchive` は `ProfileSourceTree` revision + selected root + import closure の snapshot として生成される。
+- Workspace settings の Profiles 画面から Decodal source tree を閲覧・編集できる。
+- Decodal editor は `decodal-codemirror` を使い、CodeMirror 6 の highlighting / indentation / folding を提供する。
+- Backend validation が authority であり、Browser editor の diagnostics は補助として扱う。
+
+## 実装内容
+
+### 1. `ProfileSourceTree` model を追加する
+
+Backend-owned Profile source の仮想 filesystem model を定義する。
+
+含めるもの:
+
+- `source_tree_id`。
+- `revision` / generation。
+- virtual root metadata。
+- files: virtual relative path, content digest, size, content type, editable flag。
+- source provenance: builtin / workspace / project / generated。
+- diagnostics。
+
+禁止するもの:
+
+- host absolute path。
+- symlink target path。
+- Runtime endpoint / socket / session path。
+- secret values。
+- WorkingDirectory root path。
+
+### 2. Virtual path resolver を実装する
+
+Decodal import specifier を `current virtual path + specifier` から tree 内 virtual path へ解決する。
+
+実装すること:
+
+- relative import: `./foo.dcdl`, `../shared/base.dcdl`。
+- explicit namespace import: builtin / workspace / project など、採用する namespace を typed enum として扱う。
+- path normalization。
+- root escape rejection。
+- absolute path / URL / unsupported scheme rejection。
+- extension/content type validation。
+- import depth / file count / total bytes limit。
+
+### 3. `ProfileSourceArchive` builder を `ProfileSourceTree` に接続する
+
+Archive builder は selected root virtual path から import closure を解決し、closure だけを tar に入れる。
+
+実装すること:
+
+- selected profile selector -> root virtual path の解決。
+- import closure traversal。
+- manifest に virtual path / source key / digest / size / content type / import map を記録。
+- archive digest は manifest + source contents の canonical identity にする。
+- missing import / ambiguous namespace / duplicate source key / oversized closure を typed diagnostic にする。
+
+### 4. Runtime `ArchiveSourceLoader` の virtual path validation を強化する
+
+Runtime は archive manifest の virtual path だけを信頼境界として扱う。
+
+実装すること:
+
+- archive内 source path は manifest に存在するものだけ許可。
+- Decodal `SourceLoader::load(current_key, specifier)` は archive manifest / import map / virtual path resolver を使う。
+- archive tar path と virtual path の対応を検証する。
+- absolute path / `..` / manifest外 import / unsupported namespace を拒否する。
+
+### 5. Backend/Profile settings API を file-tree model に寄せる
+
+Profile settings API は source list だけではなく、editor が使う file tree operation を提供する。
+
+v0 で追加する operation:
+
+- list source trees。
+- list files in source tree。
+- read file。
+- write file。
+- create file。
+- delete file。
+- validate tree / validate file。
+- rename/move file は v0 で必要なら追加、不要なら非目標。
+
+Browser-facing API は virtual path と safe display path だけを返し、host path を返さない。
+
+### 6. Workspace settings に Decodal profile editor を追加する
+
+Profiles settings 画面に file tree editor を追加する。
+
+実装すること:
+
+- `/w/<workspace-id>/settings/profiles` は Available profiles と Profile source tree list を表示する。
+- `/w/<workspace-id>/settings/profiles/trees/<source-tree-id>` で source tree を開く。
+- source tree page は file tree / selected file / diagnostics を表示する。
+- selected file は `decodal-codemirror@0.1.2` の CodeMirror 6 extension で編集する。
+- save は Backend file write API を使う。
+- create/delete file は Backend API を使う。
+- import diagnostics / validation diagnostics を表示する。
+- Browser editor は Backend validation の補助であり、Backend diagnostics を authority として表示する。
+- formatter は実装しない。
+
+### 7. Editor dependency / packaging を追加する
+
+Frontend に Decodal editor dependency を追加する。
+
+実装すること:
+
+- `decodal-codemirror@0.1.2` を frontend dependency に追加する。
+- CodeMirror 6 の必要 dependency を追加する。
+- `decodal()` extension を使う。
+- `decodal-wasm` による browser-side evaluation は必要になるまで非目標とし、入れる場合も Backend validation を authority とする。
+- Deno/SvelteKit check/test と Nix packaging に dependency 追加を反映する。
+
+## 受け入れ条件
+
+- `ProfileSourceTree` typed model が実装されている。
+- Backend が Decodal source files を virtual relative path の tree として list/read/write/create/delete できる。
+- Backend virtual path resolver が relative import と採用 namespace import を解決できる。
+- absolute path、URL、root escape、symlink escape、unsupported scheme、oversized closure は typed diagnostic になる。
+- `ProfileSourceArchive` builder が `ProfileSourceTree` revision から selected root の import closure tar を生成する。
+- Archive manifest に virtual path / digest / import map が含まれる。
+- Runtime `ArchiveSourceLoader` は archive manifest 内 virtual path だけで import を解決し、Workspace filesystem を読まない。
+- Profiles settings 画面に source tree list と file tree editor がある。
+- Decodal file editor は `decodal-codemirror@0.1.2` / CodeMirror 6 を使って highlighting / indentation / folding を提供する。
+- Editor save/create/delete は Backend API を通り、host filesystem path を Browser が扱わない。
+- Browser-facing API に host absolute path、Runtime endpoint、secret value、WorkingDirectory root が露出しない。
+- Focused tests が virtual path normalization、import closure build、archive manifest validation、Runtime archive import resolution、Browser payload redaction、settings file tree API、editor route smoke behavior を確認する。
+- `cargo test -p yoi-workspace-server` が通る。
+- `cargo test -p worker-runtime --features ws-server,fs-store` が通る。
+- `cargo check -p yoi` が通る。
+- `cd web/workspace && deno task check && deno task test` が通る。
+- `yoi ticket doctor` が通る。
+- `nix build .#yoi --no-link` が通る。
+
+## 非目標
+
+- Decodal formatter / formatter integration。
+- Browser-side Decodal materialization as authority。
+- Profile source を RDB-like form に正規化する編集 UI。
+- Plugin package / MCP executable / sandbox artifact sync。
+- Memory / Ticket / Objective / Workflow の API migration。

.yoi/tickets/00001KX1JNJ2Y/resolution.md

@@ -0,0 +1,39 @@
+完了。
+
+実装内容:
+- Backend-owned `ProfileSourceTree` virtual filesystem model を追加した。
+- virtual relative paths / safe source tree ids / file ids / revision / content digest / content type / typed provenance / diagnostics を扱う safe summaries を追加した。
+- Profile source tree list/read/write/create/delete/validate scoped APIs を追加した。
+- virtual import resolver を追加し、relative imports / scoped namespace imports を扱い、absolute path、URL/unsupported scheme、root escape、unsupported namespace、limit excess を fail closed するようにした。
+- `ProfileSourceArchive` construction を selected root/selector + source tree revision + import closure snapshot に変更し、unrelated sources を archive に含めないようにした。
+- Runtime `ArchiveSourceLoader` / archive verification を virtual path / import-map only に強化し、Workspace filesystem/backend fallback を導入しないまま維持した。
+- Settings UI に Profile source tree list と Decodal source editor route を追加した。
+- `decodal-codemirror@0.1.2` と CodeMirror 6 の `decodal()` extension を editor に接続した。
+- UI create/save/delete operations を Backend virtual-path APIs に接続した。
+- `.yoi/profiles` source root symlink と symlink/path escape を list/read/write/delete/archive construction paths で reject し、outside filesystem mutation 前に fail closed するようにした。
+- Focused backend/runtime/web tests を追加した。
+
+主な commit / merge:
+- implementation: `81abfa63 feat: add profile source tree editor`
+- review fix: `941b9126 fix: complete profile source tree review fixes`
+- symlink-root fix: `13c6548b fix: reject profile source root symlinks`
+- merge into orchestration: `9a2e57fb merge: profile source tree editor`
+
+Review:
+- 初回 external review は request_changes。
+- first follow-up review も request_changes（source-root symlink blocker）。
+- second follow-up review は approve。merge-blocking issue なし。
+
+Final validation in Orchestrator worktree:
+- `git diff --check`: pass
+- `cargo test -p yoi-workspace-server`: pass（94 lib tests + 2 main tests）
+- `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+- `cargo check -p yoi`: pass
+- `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+- `cd web/workspace && deno task test`: pass（19 tests）
+- `yoi ticket doctor`: ok
+- `nix build .#yoi --no-link`: pass
+
+補足:
+- implementation branch merge 時に Ticket record conflict が発生したため、Orchestrator 側の Ticket item/thread を保持して解決した。product/code changes は merge 済み。
+- Reviewer の non-blocking follow-up: `read_profile_tree_file` に対する root-symlink direct assertion を追加すると regression matrix がさらに明示的になるが、同じ guarded `checked_source_path` を通るため merge blocker ではない。

.yoi/tickets/00001KX1JNJ2Y/thread.md

@@ -0,0 +1,431 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-08T19:18:25Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-09T07:18:33Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-09T07:18:33Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-09T07:56:07Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-09T07:57:36Z -->
+
+## Decision
+
+Routing decision: implementation_ready
+
+Reason:
+- Declared dependency `00001KWZ5KERY` is closed, so Decodal ProfileSourceArchive / archive verify / Runtime FSなし resolution の基礎は available。
+- Related follow-up `00001KX0DSMPT` Workspace/Profile settings API/pages is also closed, so settings/profile editing surface exists and this Ticket can refine it to ProfileSourceTree virtual filesystem + Decodal editor。
+- Ticket body gives concrete model/API/UI/editor/dependency/validation requirements and clear non-goals。
+- typed relation blocker is resolved; OrchestrationPlan record は 0 件。inprogress Ticket も 0 件。
+- queued notification is human authorized routing/start。
+
+Evidence checked:
+- Ticket body / thread / artifacts。
+- `TicketRelationQuery(00001KX1JNJ2Y)`: outgoing `depends_on 00001KWZ5KERY`; target is closed。
+- `TicketOrchestrationPlanQuery(00001KX1JNJ2Y)`: 0 件。
+- `TicketList`: queued はこの Ticket 1件、inprogress は 0 件。
+- Orchestrator worktree git status: clean on `orchestration`。
+- Relevant prior work: Decodal/ProfileSourceArchive closed, Workspace/Profile settings closed。
+
+IntentPacket:
+
+Intent:
+- Add Backend-owned `ProfileSourceTree` virtual filesystem for Decodal profile sources, connect ProfileSourceArchive import closure building to that tree, strengthen Runtime archive import validation, and add Workspace settings Profile source tree editor using `decodal-codemirror@0.1.2` / CodeMirror 6。
+
+Binding decisions / invariants:
+- Browser/editor works with virtual relative paths and safe source tree/file ids, never host absolute paths or raw filesystem authority。
+- Backend validation is authority; Browser editor diagnostics are only assistance。
+- Runtime reads only ProfileSourceArchive manifest / virtual paths, not Workspace filesystem。
+- `ProfileSourceArchive` is a snapshot of source tree revision + selected root + import closure。
+- Browser-facing API must not expose host absolute path, symlink target path, Runtime endpoint/socket/session path, secret values, WorkingDirectory root path, raw resource handles, archive digest/content, or backend-private paths。
+- `decodal-codemirror@0.1.2` / CodeMirror 6 dependency is in scope; formatter and Browser-side Decodal materialization as authority are out of scope。
+
+Requirements / acceptance criteria:
+- Implement typed `ProfileSourceTree` model with tree id, revision/generation, virtual root metadata, files, provenance, diagnostics, and safe summaries。
+- Implement virtual import resolver for relative imports and adopted namespace imports, with normalization and typed diagnostics for root escape, absolute path, URL/unsupported scheme, extension/content-type, depth/count/bytes limits。
+- Build `ProfileSourceArchive` from selected root virtual path and source tree import closure, including virtual path / source key / digest / size / content type / import map in manifest。
+- Runtime `ArchiveSourceLoader` validates manifest-contained virtual paths only and rejects manifest-outside import, absolute path, `..`, unsupported namespace。
+- Add scoped Profile settings file-tree API: list trees, list files, read/write/create/delete file, validate tree/file; rename/move optional。
+- Add Settings UI profile source tree list and file tree editor routes/pages using Decodal CodeMirror extension and Backend save/create/delete/validate APIs。
+- Focused backend/runtime/web tests cover path normalization, import closure, archive manifest validation, Runtime import resolution, Browser redaction, file tree API, and editor route smoke。
+
+Implementation latitude:
+- Exact endpoint names, source tree storage format, namespace enum details, UI route/component split, and editor model can follow existing workspace-server/Svelte style。
+- v0 may keep source tree storage minimal and project/workspace-backed, provided Browser contract remains virtual-path based and Backend validation remains authority。
+
+Escalate if:
+- Browser-facing raw host path authority, Runtime workspace filesystem discovery, Browser-side Decodal materialization as authority, formatter integration, plugin/MCP/sandbox artifact sync, or Profile source RDB-normalized editor becomes required。
+
+Validation:
+- `cargo test -p yoi-workspace-server`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `git diff --check`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Current code map:
+- Backend profile settings/source model: `crates/workspace-server/src/profile_settings.rs`, `server.rs`, `hosts.rs`。
+- Decodal/Profile archive: `crates/worker-runtime/src/profile_archive.rs`, `config_bundle.rs`。
+- Frontend settings/profile editor: `web/workspace/src/routes/w/[workspaceId]/settings/**`, `web/workspace/src/lib/workspace-settings/**`。
+
+Critical risks / reviewer focus:
+- virtual paths and tar paths must not allow absolute path / `..` / symlink/path escape。
+- Browser must never receive host absolute path, secret, runtime endpoint, archive digest/content, or raw handle。
+- Runtime SourceLoader must be archive-manifest/import-map only, no FS/backend fallback。
+- source tree validation/write must be revision-aware and fail closed with typed diagnostics。
+- new editor dependency and Nix/lock updates must be correct。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-09T07:57:59Z from: queued to: inprogress reason: routing_acceptance_implementation_ready field: state -->
+
+## State changed
+
+Queued acceptance recorded after Workspace Dashboard Queue notification authorized Orchestrator routing.
+
+Checked context:
+- Ticket body / thread / artifacts。
+- `TicketRelationQuery(00001KX1JNJ2Y)`: depends_on `00001KWZ5KERY`; target is closed。
+- `TicketOrchestrationPlanQuery(00001KX1JNJ2Y)`: prior record 0 件。今回 accepted_plan を記録済み。
+- Orchestrator worktree git status: clean on `orchestration`。
+- queued Ticket はこの Ticket 1件のみ。inprogress は 0 件。
+
+Acceptance basis:
+- concrete missing decision / information は残っていない。
+- Ticket scope is ProfileSourceTree virtual filesystem + Decodal editor follow-up on top of closed Decodal/ProfileSourceArchive and Workspace/Profile settings work。
+- side effect はこの `queued -> inprogress` acceptance 後に、worktree-workflow に沿って implementation worktree を作成してから開始する。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-09T07:58:54Z -->
+
+## Implementation report
+
+Implementation routing update:
+
+- Worktree-workflow に従い implementation worktree を作成した。
+  - Worktree: `/home/hare/Projects/yoi/.worktree/00001KX1JNJ2Y-profile-source-tree`
+  - Branch: `work/00001KX1JNJ2Y-profile-source-tree`
+- Worktree には tracked `.yoi` project records が見えている。
+- `.yoi/memory` / `.yoi/runtime` / `.yoi/log` / `.yoi/logs` / `.yoi/local` / `.yoi/*.lock` / `.yoi/*secret*` は作成直後に存在しないことを確認した。
+- Sibling Coder Pod `yoi-coder-00001KX1JNJ2Y-source-tree` を起動した。
+- Scope policy: runtime workspace root は read-only、implementation worktree は write 可。Coder task では root/original workspace での read/write/validation/git operation を禁止し、この implementation worktree だけを作業対象に指定した。
+- 初回プロンプト肥大化を避けるため、Coder には短い task と Ticket record 読み取り指示を渡した。
+- 完了後は diff / validation evidence を Orchestrator が確認し、別 sibling Reviewer Pod に read-only review を依頼する。`StopPod` は既知の不具合があるため使用しない。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-09T08:28:11Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod completed implementation and committed `81abfa63 feat: add profile source tree editor` on branch `work/00001KX1JNJ2Y-profile-source-tree`.
+- Worktree status was clean after commit。
+- Changed files include:
+  - `crates/worker-runtime/src/profile_archive.rs`
+  - `crates/workspace-server/src/profile_settings.rs`
+  - `crates/workspace-server/src/server.rs`
+  - `web/workspace/deno.json`, `web/workspace/deno.lock`
+  - `web/workspace/src/lib/workspace-settings/DecodalSourceEditor.svelte`
+  - `web/workspace/src/lib/workspace-settings/{profile-api.ts,profile-types.ts}`
+  - `web/workspace/src/routes/w/[workspaceId]/settings/profiles/+page.svelte`
+  - child implementation also committed `.yoi/tickets/00001KX1JNJ2Y/{item.md,thread.md}` changes; Orchestrator will preserve authoritative Ticket records during merge if conflicts occur。
+- Implementation summary:
+  - Added Runtime archive validation for virtual source metadata, duplicate/undeclared entries, scoped import maps, namespace/path safety, and relative virtual import resolution。
+  - Added Backend-owned project `ProfileSourceTree` support with virtual `profiles/...` paths, tree scanning, revision-aware file read/write/delete API, and tree-based archive/config-bundle generation。
+  - Added workspace server routes and Browser API/types for scoped source-tree access without host paths or backend-private/archive internals。
+  - Added Profiles settings Decodal CodeMirror editor using virtual paths and revision tokens。
+  - Added worker-runtime tests for scoped virtual import resolution and import-map mismatch rejection。
+- Orchestrator reran validation in the implementation worktree:
+  - `git diff --check`: pass
+  - `cargo test -p yoi-workspace-server`: pass（91 lib tests + 2 main tests）
+  - `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+  - `cargo check -p yoi`: pass
+  - `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+  - `cd web/workspace && deno task test`: pass（17 tests）
+  - `yoi ticket doctor`: ok
+  - `nix build .#yoi --no-link`: pass
+- External review will be requested via a read-only sibling Reviewer Pod. `StopPod` は使わない。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-09T08:32:35Z status: request_changes -->
+
+## Review: request changes
+
+External review result: request_changes
+
+Blockers:
+
+1. Decodal CodeMirror integration is missing。
+   - Ticket requires `decodal-codemirror@0.1.2` and the `decodal()` CodeMirror 6 extension。
+   - Implementation only adds `@codemirror/state` / `@codemirror/view` (`web/workspace/deno.json`) and `deno.lock` has no `decodal-codemirror` specifier。
+   - `DecodalSourceEditor.svelte` builds a plain CodeMirror editor with line numbers/selection/theme only, so there is no Decodal highlighting/indent/folding extension。
+
+2. Settings UI does not implement the required tree route or create/delete editor operations。
+   - Ticket requires `/w/<workspace-id>/settings/profiles/trees/<source-tree-id>` plus save/create/delete via Backend APIs。
+   - Route tree only contains `web/workspace/src/routes/w/[workspaceId]/settings/profiles/+page.svelte`; no `trees/[sourceTreeId]` route。
+   - Page imports/uses only `writeProfileTreeFile` and renders only Save; no create/delete UI is wired despite `deleteProfileTreeFile` existing in API wrapper。
+
+3. Archive construction is not a selected-root import-closure snapshot。
+   - `build_workspace_profile_archive(workspace_root, selector)` reads whole tree and calls `build_profile_archive_from_tree_sources`; selector is used only for post-build validation。
+   - Builder adds entrypoints for every project registry entry, scans every source for imports, and passes entire `sources` map into `ProfileSourceArchive::build`。
+   - This violates requirement that archive is generated from `ProfileSourceTree revision + selected root + import closure`, with closure-only contents。
+
+4. `ProfileSourceTree` typed model is incomplete against Ticket contract。
+   - Browser/backend structs expose tree id/root/revision/file count and file path/kind/revision/size, but no content digest, content type, or provenance field/typed provenance enum。
+   - These are explicit Ticket requirements for the typed model。
+
+5. Symlink/path-escape write safety has a side-effect before containment validation。
+   - `write_profile_tree_file` calls `fs::create_dir_all(parent)` on unresolved workspace path before `checked_source_path` canonical root containment checks。
+   - With a symlinked intermediate directory under `.yoi/profiles`, this can create directories outside source root before later rejection。
+   - Path/symlink escape should fail closed without outside filesystem mutation。
+
+Validation performed:
+- Read Ticket item, routing IntentPacket, and implementation report。
+- Inspected implementation commit metadata and relevant backend/runtime/frontend files in the implementation worktree only。
+- Did not rerun reported cargo/deno/nix validations; Orchestrator-reported validation was passing, but blockers are functional/design acceptance gaps。
+
+Non-blocking follow-ups:
+- After blockers are fixed, add focused regression coverage for selected-root closure behavior, tree route smoke, Decodal editor extension wiring, UI create/delete flows, and symlinked-directory tree-write rejection-before-side-effect。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-09T08:52:14Z -->
+
+## Implementation report
+
+Review-fix implementation report:
+
+- Coder Pod completed requested changes and committed follow-up `941b9126 fix: complete profile source tree review fixes` on branch `work/00001KX1JNJ2Y-profile-source-tree`.
+- Worktree status was clean after commit。
+- Fix summary:
+  - Added `decodal-codemirror@0.1.2` and wired `decodal()` into the CodeMirror 6 editor。
+  - Added source tree settings route `/w/<workspace-id>/settings/profiles/trees/<source-tree-id>`。
+  - Wired UI create/save/delete operations through Backend virtual-path source tree APIs。
+  - Changed archive construction to selected selector/root + import closure only, avoiding unrelated project tree sources。
+  - Added safe typed source/tree metadata including content type, content digest, and typed provenance。
+  - Hardened tree writes against symlinked intermediate directories before any outside filesystem mutation。
+  - Added focused regression coverage for selected-root closure-only archive contents, symlink write rejection before side effects, and web model smoke tests for tree routes / virtual create paths。
+- Orchestrator reran validation in the implementation worktree:
+  - `git diff --check`: pass
+  - `cargo test -p yoi-workspace-server`: pass（93 lib tests + 2 main tests）
+  - `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+  - `cargo check -p yoi`: pass
+  - `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+  - `cd web/workspace && deno task test`: pass（19 tests）
+  - `yoi ticket doctor`: ok
+  - `nix build .#yoi --no-link`: pass
+- Requesting follow-up external review against `81abfa63..941b9126` and full combined implementation。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-09T08:57:15Z status: request_changes -->
+
+## Review: request changes
+
+External follow-up review result: request_changes
+
+Blockers:
+
+1. Tree writes still allow a source-root symlink escape before/at filesystem mutation。
+   - Fix rejects symlinked intermediate directories under `.yoi/profiles`, but not `.yoi/profiles` itself being a symlink。
+   - `prepare_source_path_for_write()` creates/canonicalizes `source_root` without checking `symlink_metadata(source_root)` or verifying canonical source root remains under canonical workspace root。
+   - If `.yoi/profiles` is a symlink to an outside directory, `canonical_root` becomes outside target; `parent_relative` strips against textual symlink path and missing children can be created outside workspace。
+   - `checked_source_path()` repeats the escaped-root comparison and can accept files under escaped root。
+   - `list_profile_tree_files()` starts `read_dir` at `workspace_root/.yoi/profiles`, so symlinked source root can expose outside `.dcdl` files as virtual tree files。
+   - Required fix: reject symlinked source root and ensure canonical source root is confined under canonical workspace root before list/read/write/delete/archive operations。
+
+2. Regression coverage for the remaining symlink escape is missing。
+   - Existing test covers symlinked child directory only。
+   - Add focused regression for `.yoi/profiles -> outside_dir` asserting tree write is rejected before side effects, outside target is not created/modified, and preferably list/read/archive construction also fail closed or do not traverse escaped root。
+
+Evidence / resolved items:
+- `decodal-codemirror@0.1.2` is present and `DecodalSourceEditor.svelte` imports/uses `decodal()` in CM6 extensions。
+- Required tree route exists at `web/workspace/src/routes/w/[workspaceId]/settings/profiles/trees/[sourceTreeId]/...`; create/save/delete call Backend APIs。
+- Selected-root archive construction now collects only import closure; tests assert unrelated sources are excluded。
+- Browser-facing typed summaries include virtual path/root, content type/digest, and typed provenance without host paths。
+- Runtime `ArchiveSourceLoader` remains manifest/import-map backed with no filesystem fallback。
+
+Non-blocking follow-ups:
+- Current web tests cover route helper/path normalization but not actual Svelte create/save/delete interaction behavior。
+- Editor extension wiring is compile/static-source covered rather than directly unit-tested; acceptable for now, but smoke coverage would help future dependency regressions。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-09T09:10:00Z -->
+
+## Implementation report
+
+Second review-fix implementation report:
+
+- Coder Pod completed remaining requested changes and committed follow-up `13c6548b fix: reject profile source root symlinks` on branch `work/00001KX1JNJ2Y-profile-source-tree`。
+- Worktree status was clean after commit。
+- Fix summary:
+  - Added shared `ProfileSourceRoot` guard。
+  - Rejects `.yoi/profiles` when it is a symlink。
+  - Verifies canonical `.yoi/profiles` remains under the canonical workspace root。
+  - Applied the guard consistently to source tree listing, file read/delete checks, write preparation, source summaries, and archive construction through tree scan/read paths。
+  - Hardened writes so `.yoi` and `.yoi/profiles` are created one component at a time only after symlink/canonical containment checks。
+  - Added regression coverage for `.yoi/profiles -> outside_dir`: write rejects before outside side effects, outside target is not created/modified, source tree read/list fails closed, and archive construction fails closed。
+- Orchestrator reran validation in the implementation worktree:
+  - `git diff --check`: pass
+  - `cargo test -p yoi-workspace-server`: pass（94 lib tests + 2 main tests）
+  - `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+  - `cargo check -p yoi`: pass
+  - `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+  - `cd web/workspace && deno task test`: pass（19 tests）
+  - `yoi ticket doctor`: ok
+  - `nix build .#yoi --no-link`: pass
+- Requesting second follow-up external review against `941b9126..13c6548b` and full combined implementation。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-09T09:16:20Z status: approve -->
+
+## Review: approve
+
+External second follow-up review result: approve
+
+Blockers verified:
+- Source-root symlink rejection is now in the shared source-root path validation:
+  - `existing_profile_source_root` rejects `.yoi/profiles` when the final component is a symlink。
+  - `prepare_profile_source_root_for_write` rejects both `.yoi` symlink parents and `.yoi/profiles` symlink roots before create/write operations。
+  - `checked_source_path`, tree listing, file read/write/delete, and archive construction all flow through these guards before touching tree contents。
+- Regression coverage for `.yoi/profiles -> outside_dir` exists:
+  - `source_root_symlink_is_rejected_before_tree_side_effects` covers write rejection before outside side effects, `read_profile_source_tree` fail-closed behavior, and `build_workspace_profile_archive` fail-closed behavior。
+  - Existing symlink-parent / entry symlink tests remain in place for nested escape cases。
+
+Still-good items checked and intact:
+- Decodal editor wiring remains present via the Svelte editor component using `decodal()` / CodeMirror integration。
+- Profile tree API routes remain wired for tree read and file create/save/delete:
+  - `/settings/profiles/trees/{source_tree_id}`
+  - `/settings/profiles/trees/{source_tree_id}/file`
+- Virtual source tree summaries still expose virtual metadata/provenance/digest-type fields without host path disclosure。
+- Selected-root archive construction still uses the selected profile entrypoint plus import closure rather than blindly archiving every source。
+- `Runtime ArchiveSourceLoader` behavior remains bounded to archive manifest/import-map package files plus archive-backed imports; no host filesystem fallback was introduced。
+
+Validation performed:
+- Read Ticket records in `.yoi/tickets/00001KX1JNJ2Y/`, including latest implementation/review context。
+- Inspected latest fix `13c6548b`, diff from `941b9126..13c6548b`, and relevant source files in the implementation worktree only。
+- Reviewed the orchestrator-provided successful validation list; Reviewer did not rerun tests or modify files。
+
+Non-blocking follow-up:
+- A direct assertion for `read_profile_tree_file` against a root-symlinked `.yoi/profiles` would make the regression matrix even more explicit, but the implementation path already uses the same guarded `checked_source_path`, so this is not a merge blocker。
+
+No merge-blocking issues found.
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-09T09:18:29Z from: inprogress to: done reason: merged_validated_review_approved field: state -->
+
+## State changed
+
+Merge/validation acceptance:
+
+- Second follow-up external review approved the implementation after symlink-root blocker fix。
+- Implementation branch `work/00001KX1JNJ2Y-profile-source-tree` was merged into the orchestration branch with merge commit `9a2e57fb merge: profile source tree editor`。
+- Ticket-record conflicts during merge were resolved by preserving Orchestrator-side Ticket item/thread records; product/code changes were merged。
+- Final validation in Orchestrator worktree passed:
+  - `git diff --check`: pass
+  - `cargo test -p yoi-workspace-server`: pass（94 lib tests + 2 main tests）
+  - `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+  - `cargo check -p yoi`: pass
+  - `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+  - `cd web/workspace && deno task test`: pass（19 tests）
+  - `yoi ticket doctor`: ok
+  - `nix build .#yoi --no-link`: pass
+
+Implementation commits:
+- `81abfa63 feat: add profile source tree editor`
+- `941b9126 fix: complete profile source tree review fixes`
+- `13c6548b fix: reject profile source root symlinks`
+
+No merge-blocking issues remain.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-09T09:18:48Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-09T09:18:48Z status: closed -->
+
+## 完了
+
+完了。
+
+実装内容:
+- Backend-owned `ProfileSourceTree` virtual filesystem model を追加した。
+- virtual relative paths / safe source tree ids / file ids / revision / content digest / content type / typed provenance / diagnostics を扱う safe summaries を追加した。
+- Profile source tree list/read/write/create/delete/validate scoped APIs を追加した。
+- virtual import resolver を追加し、relative imports / scoped namespace imports を扱い、absolute path、URL/unsupported scheme、root escape、unsupported namespace、limit excess を fail closed するようにした。
+- `ProfileSourceArchive` construction を selected root/selector + source tree revision + import closure snapshot に変更し、unrelated sources を archive に含めないようにした。
+- Runtime `ArchiveSourceLoader` / archive verification を virtual path / import-map only に強化し、Workspace filesystem/backend fallback を導入しないまま維持した。
+- Settings UI に Profile source tree list と Decodal source editor route を追加した。
+- `decodal-codemirror@0.1.2` と CodeMirror 6 の `decodal()` extension を editor に接続した。
+- UI create/save/delete operations を Backend virtual-path APIs に接続した。
+- `.yoi/profiles` source root symlink と symlink/path escape を list/read/write/delete/archive construction paths で reject し、outside filesystem mutation 前に fail closed するようにした。
+- Focused backend/runtime/web tests を追加した。
+
+主な commit / merge:
+- implementation: `81abfa63 feat: add profile source tree editor`
+- review fix: `941b9126 fix: complete profile source tree review fixes`
+- symlink-root fix: `13c6548b fix: reject profile source root symlinks`
+- merge into orchestration: `9a2e57fb merge: profile source tree editor`
+
+Review:
+- 初回 external review は request_changes。
+- first follow-up review も request_changes（source-root symlink blocker）。
+- second follow-up review は approve。merge-blocking issue なし。
+
+Final validation in Orchestrator worktree:
+- `git diff --check`: pass
+- `cargo test -p yoi-workspace-server`: pass（94 lib tests + 2 main tests）
+- `cargo test -p worker-runtime --features ws-server,fs-store`: pass（47 lib tests + 5 main tests + doc tests）
+- `cargo check -p yoi`: pass
+- `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+- `cd web/workspace && deno task test`: pass（19 tests）
+- `yoi ticket doctor`: ok
+- `nix build .#yoi --no-link`: pass
+
+補足:
+- implementation branch merge 時に Ticket record conflict が発生したため、Orchestrator 側の Ticket item/thread を保持して解決した。product/code changes は merge 済み。
+- Reviewer の non-blocking follow-up: `read_profile_tree_file` に対する root-symlink direct assertion を追加すると regression matrix がさらに明示的になるが、同じ guarded `checked_source_path` を通るため merge blocker ではない。
+
+---

.yoi/tickets/00001KX6BPY7M/artifacts/orchestration-plan.jsonl

@@ -0,0 +1 @@
+{"id":"orch-plan-20260710-161155-1","ticket_id":"00001KX6BPY7M","kind":"accepted_plan","accepted_plan":{"summary":"Ticket 00001KX6BPY7M は independent queued Ticket で blocker なし。Objective retention 方針に基づく Backend Worker/Workdir registry and link model を実装開始する。","branch":"work/00001KX6BPY7M-worker-workdir-registry","worktree":"/home/hare/Projects/yoi/.worktree/00001KX6BPY7M-worker-workdir-registry","role_plan":"単一 sibling Coder Pod に implementation worktree を委譲し、Backend SQLite Worker/Workdir/link tables、Backend create/status sync integration、managed/unmanaged list projections、retention pinned metadata、tests/UI projection adjustments を実装する。完了後、別 sibling Reviewer Pod で Ticket IntentPacket / raw-path redaction / registry authority / retention invariants に照らして read-only review する。"},"author":"orchestrator","at":"2026-07-10T16:11:55Z"}

.yoi/tickets/00001KX6BPY7M/item.md

@@ -0,0 +1,85 @@
+---
+title: 'Add Backend Worker/Workdir registry and link model'
+state: 'closed'
+created_at: '2026-07-10T15:53:02Z'
+updated_at: '2026-07-10T17:38:20Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-10T16:10:57Z'
+---
+
+## 背景
+
+Objective `00001KWW44EXK` の Worker / Session / workdir retention 方針に基づき、Worker と workdir の保存・retention・link authority を Backend SQLite に置く。
+
+現在は Runtime が Worker catalog と working directory materialization record を主に持ち、Backend は Worker create / workdir create を仲介しているだけである。このため、停止済み Worker、Session / transcript、Runtime-owned workdir、実ファイルが削除済みの workdir、unknown/external workdir の関係を Backend が安定して説明できない。
+
+今後の prune / archive / pinned retention を安全に実装するには、先に Backend 側に canonical registry と relation を持たせる必要がある。
+
+## 決定事項
+
+- Worker を作業記録の保存単位にする。
+- Session / transcript は Worker archive に内包または参照される履歴として扱い、Session 単体を長期保存 authority にしない。
+- Worker archive には retention policy を持たせ、`pinned` Worker を cleanup / prune から守れるようにする。
+- Workdir record は Backend SQLite にも canonical record を持たせる。Runtime は実ファイル、raw materialized path、process/cwd binding、cleanup 実行の authority を持つ。
+- Worker と Workdir の関係は SQLite link table で表す。Worker 側 summary copy は許容するが、relation authority は link table とする。
+- Workdir 実ファイルは durable history ではなく再現可能 cache として扱う。
+- Dirty workdir は活動中状態として扱う。Dirty orphan は自動 prune ではなく recovery Worker の起動または explicit discard の判断対象にする。
+- Browser-facing UI 表示は `workdir` に寄せる。内部 API の `working_directory` 互換名は段階移行中に残ってよい。
+
+## 要件
+
+- Backend SQLite に Worker registry を追加する。
+  - workspace_id
+  - backend worker id / runtime worker id
+  - runtime_id
+  - display name
+  - profile
+  - lifecycle state
+  - retention state（少なくとも pinned を表せること）
+  - session/transcript refs または将来 refs を保存できる shape
+  - summary/diagnostics 用の将来拡張余地
+- Backend SQLite に Workdir registry を追加する。
+  - workspace_id
+  - workdir_id
+  - runtime_id
+  - repository_id
+  - selector
+  - resolved_commit
+  - materialization status（present/removed/missing/unknown 相当）
+  - cleanliness（clean/dirty/unknown 相当）
+  - created_at / updated_at
+- Backend SQLite に Worker-Workdir link table を追加する。
+  - worker_id
+  - workdir_id
+  - role（primary など将来拡張可能）
+  - linked_at / unlinked_at
+- Backend 経由の workdir create は Backend Workdir registry row を作成/更新してから Runtime materialization を要求する。
+- Backend 経由の worker create は Backend Worker registry row と Worker-Workdir link を作成/更新する。
+- Runtime から返る Worker / Workdir status は Backend registry に同期される。
+- Browser-facing Worker / Workdir list は Backend registry を主にし、Runtime status は観測値として merge する。
+- Runtime direct API などで作られた Backend registry に無い workdir は unmanaged/external として扱い、通常の Backend-managed Workdirs 一覧に混ぜない。
+- Raw Runtime path は Backend registry / Browser response に保存・表示しない。
+
+## 受け入れ条件
+
+- Backend SQLite schema に Worker / Workdir / Worker-Workdir link の typed tables が追加されている。
+- 既存 store からの migration / default path があり、既存 Workspace Backend 起動を壊さない。
+- Backend API 経由で workdir を作成すると、Runtime record だけでなく Backend Workdir registry にも record が残る。
+- Backend API 経由で Worker を作成すると、Backend Worker registry と Worker-Workdir link が残る。
+- Stopped Worker と removed Workdir の関係を Backend registry から辿れる。
+- Worker archive / retention metadata に `pinned` を表せる。
+- Workdir 実ファイルが無いことは Runtime observation として扱われ、Backend canonical record が即座に失われない。
+- Backend-managed Workdir と unmanaged/external Runtime Workdir を区別できる。
+- Workers / Workdirs UI は Backend-managed registry を基準に表示できる。
+- `cargo test -p yoi-workspace-server --lib` が通る。
+- `cargo test -p worker-runtime --features ws-server,fs-store` が通る。
+- `cd web/workspace && deno task check && deno task test` が通る。
+- `nix build .#yoi --no-link` が通る。
+
+## 非目標
+
+- 実際の prune/delete 実行はこの Ticket では扱わない。
+- Session/transcript full deletion UI はこの Ticket では扱わない。
+- Dirty orphan recovery Worker の自動起動はこの Ticket では扱わない。
+- Runtime raw path を Backend canonical record に保存することはしない。

.yoi/tickets/00001KX6BPY7M/resolution.md

@@ -0,0 +1,35 @@
+Backend Worker/Workdir registry and link model を実装・レビュー・merge・検証した。
+
+実装内容:
+- Backend SQLite schema に `worker_registry`, `workdir_registry`, `worker_workdir_links` を追加。
+- Worker registry / Workdir registry / Worker-Workdir link の typed store API と projection を追加。
+- Backend 経由の Workdir 作成で Runtime materialization 前に Backend-managed pending row を作成。
+- Backend / Runtime scoped Worker creation で Worker registry row、Workdir registry row、Worker-Workdir link を同期。
+- Worker list は Runtime observation を同期したうえで Backend `worker_registry` / link authority から projection。
+- Worker stop は canonical registry row を削除せず、Worker lifecycle と linked Workdir status を同期。
+- Workdir list / launch options は Backend-managed rows を基準にし、`runtime_unmanaged` Workdirs は managed Browser list/options に混ぜず runtime/diagnostic projection で区別可能にした。
+- `pinned` retention が通常 Runtime sync で `normal` に clobber されないよう保護。
+- Browser-facing summaries に safe `management_kind` を追加し、raw Runtime materialized path を Backend registry / Browser response に保存・表示しない方針を維持。
+
+Review:
+- 初回 review は 5 blocker で `request_changes`。
+- `8695089f fix: sync backend worker registry projections` で主要 blocker を修正。
+- 2回目 review は unmanaged Workdir が managed list/options に混ざる blocker で `request_changes`。
+- `239f93b0 fix: keep unmanaged workdirs out of managed lists` で残 blocker を修正。
+- 最終 focused re-review は `approve`。
+
+Merge / validation:
+- Merge commit: `03652f82 merge: worker workdir registry`。
+- Final validation passed:
+  - `git diff --check`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-workdir-final-validation-1783704956.txt`
+
+Non-blocking follow-up noted by reviewer:
+- Some runtime detail/create response paths still return direct Runtime summaries with `management_kind: None`; list/options surfaces required by this Ticket are safe, but a future cleanup can project detail responses through Backend records for more uniform diagnostics。

.yoi/tickets/00001KX6BPY7M/thread.md

@@ -0,0 +1,460 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T15:53:02Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T15:54:24Z -->
+
+## Decision
+
+Worker / Session / workdir retention discussion from Objective 00001KWW44EXK:
+
+- Worker is the archival unit; Session/transcript belongs under Worker archive.
+- Worker retention must support pinned to protect selected history from cleanup/prune.
+- Workdir files are cache when clean and reconstructable from repository + selector/resolved commit.
+- Dirty workdir is an active/recovery state; dirty orphan should require recovery Worker or explicit discard, not automatic prune.
+- Backend should keep canonical Worker/Workdir/link records in SQLite, while Runtime owns materialized files, raw paths, process/cwd binding, and cleanup execution.
+- Runtime direct/unmanaged workdirs must be distinguishable from Backend-managed workdirs.
+
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T16:06:07Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T16:06:07Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-10T16:10:57Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T16:11:45Z -->
+
+## Decision
+
+Routing decision: implementation_ready
+
+Reason:
+- Ticket は Backend SQLite Worker registry / Workdir registry / Worker-Workdir link table の scope、retention/link authority、Backend-managed vs unmanaged Runtime workdir distinction、acceptance criteria を具体化している。
+- typed relation blocker は 0 件、OrchestrationPlan record は 0 件。queued Ticket はこの Ticket 1件のみ、inprogress は 0 件。
+- Objective `00001KWW44EXK` の retention 方針に沿った concrete implementation Ticket であり、実装前に必要な missing decision は見当たらない。
+- queued notification is human authorized routing/start。
+
+Evidence checked:
+- Ticket body / thread / artifacts。
+- `TicketRelationQuery(00001KX6BPY7M)`: 0 件。
+- `TicketOrchestrationPlanQuery(00001KX6BPY7M)`: 0 件。
+- Orchestrator worktree git status: clean on `orchestration`。
+- queued Ticket 一覧: this Ticket 1件。inprogress は 0 件。
+- Recent code history includes Runtime workdir pages / Worker launch / Execution Workspace materialization / Browser-managed execution workspaces already merged, giving implementation substrate。
+
+IntentPacket:
+
+Intent:
+- Add Backend-owned SQLite Worker registry, Workdir registry, and Worker-Workdir link authority so Backend can explain Worker/workdir retention and relationships independently of live Runtime catalog/path state。
+
+Binding decisions / invariants:
+- Worker is the archival/retention unit. Session/transcript refs belong under Worker archive/reference shape, not independent long-term authority。
+- Workdir canonical record exists in Backend SQLite; Runtime owns actual files, raw materialized paths, process/cwd binding, cleanup execution。
+- Worker-Workdir relation authority is a SQLite link table; summary copies are non-authoritative。
+- Workdir files are reproducible cache, not durable history。
+- Dirty workdir is active/recovery state; dirty orphan is not automatically pruned。
+- Browser-facing UI uses `workdir` wording; internal `working_directory` compatibility names may remain during migration。
+- Raw Runtime path must not be stored in Backend registry or shown in Browser responses。
+- Runtime direct/unmanaged workdirs must be distinguishable from Backend-managed workdirs and not mixed into managed lists。
+
+Requirements / acceptance criteria:
+- Add typed Backend SQLite tables for Worker registry, Workdir registry, and Worker-Workdir links with migration/default path for existing workspaces。
+- Backend workdir creation creates/updates Backend Workdir registry before requesting Runtime materialization。
+- Backend Worker creation creates/updates Backend Worker registry and Worker-Workdir link。
+- Runtime Worker / Workdir status observations sync into Backend registry without deleting canonical record when files disappear。
+- Backend registry can answer stopped Worker -> removed/missing Workdir relationship。
+- Worker archive/retention metadata can represent `pinned`。
+- Browser Worker/Workdir lists are based on Backend-managed registry plus Runtime observation merge。
+- Backend-managed vs unmanaged/external Runtime Workdirs are distinguishable。
+
+Implementation latitude:
+- Exact table names/enum names/API response shape/test helper layout can follow current `workspace-server` store/server style。
+- Session/transcript refs can be future-compatible nullable/json-ish shape if full archive model is not yet implemented。
+- Runtime observation sync can be minimal v0 as long as canonical Backend rows remain authoritative and unmanaged/external is typed。
+
+Escalate if:
+- Actual prune/delete execution, dirty orphan recovery Worker auto-start, session/transcript full deletion UI, or storing Runtime raw paths in Backend canonical records becomes necessary。
+
+Validation:
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `git diff --check`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Current code map:
+- Backend store/schema: `crates/workspace-server/src/store.rs`。
+- Backend server/workdir/worker APIs: `crates/workspace-server/src/server.rs`, `hosts.rs`, `companion.rs`。
+- Runtime workdir/worker models: `crates/worker-runtime/src/{runtime.rs,working_directory.rs,execution_workspace.rs,catalog.rs,http_server.rs}`。
+- Frontend workdir/worker pages: `web/workspace/src/routes/w/[workspaceId]/...`, workspace sidebar/workdir/worker helpers。
+
+Critical risks / reviewer focus:
+- Do not store or expose raw Runtime materialized paths。
+- Backend registry/link table must remain relation authority, not transient Runtime observation。
+- Runtime direct unmanaged workdirs must be visible/diagnosable as unmanaged, not silently treated as Backend-managed。
+- Missing/removed workdir files must not erase canonical Backend records。
+- `pinned` retention must be representable and protected from future cleanup/prune surfaces。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T16:12:07Z from: queued to: inprogress reason: routing_acceptance_implementation_ready field: state -->
+
+## State changed
+
+Queued acceptance recorded after Workspace Dashboard Queue notification authorized Orchestrator routing.
+
+Checked context:
+- Ticket body / thread / artifacts。
+- `TicketRelationQuery(00001KX6BPY7M)`: blocking relation 0 件。
+- `TicketOrchestrationPlanQuery(00001KX6BPY7M)`: prior record 0 件。今回 accepted_plan を記録済み。
+- Orchestrator worktree git status: clean on `orchestration`。
+- queued Ticket はこの Ticket 1件のみ。inprogress は 0 件。
+
+Acceptance basis:
+- concrete missing decision / information は残っていない。
+- Ticket scope is Backend Worker/Workdir registry/link authority; actual prune/delete/recovery automation and raw Runtime path persistence are explicitly out of scope。
+- side effect はこの `queued -> inprogress` acceptance 後に、worktree-workflow に沿って implementation worktree を作成してから開始する。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T16:13:15Z -->
+
+## Implementation report
+
+Implementation routing update:
+
+- Worktree-workflow に従い implementation worktree を作成した。
+  - Worktree: `/home/hare/Projects/yoi/.worktree/00001KX6BPY7M-worker-workdir-registry`
+  - Branch: `work/00001KX6BPY7M-worker-workdir-registry`
+- Worktree には tracked `.yoi` project records が見えている。
+- `.yoi/memory` / `.yoi/runtime` / `.yoi/log` / `.yoi/logs` / `.yoi/local` / `.yoi/*.lock` / `.yoi/*secret*` は作成直後に存在しないことを確認した。
+- Sibling Coder Pod `yoi-coder-00001KX6BPY7M-worker-workdir` を起動した。
+- Scope policy: runtime workspace root は read-only、implementation worktree は write 可。Coder task では root/original workspace での read/write/validation/git operation を禁止し、この implementation worktree だけを作業対象に指定した。
+- Coder には短い task と Ticket record 読み取り指示を渡した。
+- 完了後は diff / validation evidence を Orchestrator が確認し、別 sibling Reviewer Pod に read-only review を依頼する。`StopPod` は既知の不具合があるため使用しない。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T16:40:17Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod completed implementation and committed `3e5546ea feat: add backend worker workdir registry` on branch `work/00001KX6BPY7M-worker-workdir-registry`。
+- Worktree status was clean after commit。
+- Changed files include:
+  - `crates/workspace-server/src/store.rs`
+  - `crates/workspace-server/src/server.rs`
+  - `crates/worker-runtime/src/{catalog.rs,worker_backend.rs,working_directory.rs}`
+  - child implementation also committed `.yoi/tickets/00001KX6BPY7M/{item.md,thread.md}` changes; Orchestrator will preserve authoritative Ticket records during merge if conflicts occur。
+- Implementation summary:
+  - Added Backend SQLite schema v3 tables: `worker_registry`, `workdir_registry`, `worker_workdir_links`。
+  - Added typed store records/APIs for Worker archival registry, Workdir registry, Worker-Workdir link authority, and explicit `pinned` retention representation。
+  - Backend-managed Workdir IDs and pending registry writes are created before Runtime materialization。
+  - Browser Workdir lists are based on Backend-managed registry rows。
+  - Runtime-direct Workdirs are distinguished as `runtime_unmanaged`。
+  - Canonical Workdir records are preserved after cleanup/removal。
+  - Worker creation/listing records Backend Worker registry entries and links selected Workdirs without storing raw Runtime materialized paths。
+  - Extended worker-runtime `WorkingDirectoryRequest` with optional `backend_workdir_id`。
+- Orchestrator reran validation in the implementation worktree:
+  - `git diff --check`: pass
+  - `cargo test -p yoi-workspace-server --lib`: pass（95 tests）
+  - `cargo test -p worker-runtime --features ws-server,fs-store`: pass（48 lib tests + 5 main tests + doc tests）
+  - `cargo check -p yoi`: pass
+  - `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
+  - `cd web/workspace && deno task test`: pass（23 tests）
+  - `yoi ticket doctor`: ok
+  - `nix build .#yoi --no-link`: pass
+- External review will be requested via a read-only sibling Reviewer Pod. `StopPod` は使わない。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T16:52:25Z status: request_changes -->
+
+## Review: request changes
+
+External review result: request_changes
+
+Blockers:
+
+1. Browser Worker list が Backend registry based になっていない。
+   - Ticket は Worker/Workdir lists を Backend-managed registry + Runtime observation merge に基づかせることを要求している。
+   - `workers_response` はまだ `api.runtime.list_workers(limit)` を呼び、live Runtime items を opportunistic に記録したうえで `items: runtime_workers.items` を返している（`crates/workspace-server/src/server.rs:2529-2546`）。
+   - `worker_registry` / `worker_workdir_links` を read していないため、Backend-only / stopped / archive rows を list できず、relation authority が Browser Worker list に使われていない。
+
+2. Runtime Worker creation path が Worker registry / Workdir registry / links を書いていない。
+   - `create_runtime_worker` は `working_directory_request` を解決して `api.runtime.spawn_worker` に forward し、Runtime result を返すだけ（`server.rs:2269-2285`）。
+   - Runtime materialization 前の pending Backend Workdir row、`record_worker_summary`、Worker-Workdir link がない。
+   - Browser `/api/workers` path のみ existing Workdir を record/link-select している（`server.rs:2141-2170`）。
+   - Backend-created/internal Runtime Workers with materialized workdirs が untracked になり、「Backend worker creation writes/updates Worker registry and Worker-Workdir link」 acceptance に違反する。
+
+3. Stopped Worker -> removed/missing Workdir relationship が Backend registry から安定して答えられない。
+   - `stop_runtime_worker` は Runtime stop を forward して返すだけ（`server.rs:2330-2339`）。
+   - Runtime cleanup 後に Worker lifecycle、Workdir materialization status、link state を Backend SQLite に更新しない。
+   - `working_directory_summaries` は `list_managed_workdir_registry` だけを読む（`server.rs:3242-3249`）ため、Runtime stop が bound workdir を remove しても Backend record は stale `present` のままになり得る。
+
+4. Runtime Workdir observation / unmanaged distinction が partial。
+   - runtime-scoped workdir list は raw Runtime summaries を直接返す（`server.rs:1184-1200`）。
+   - workspace-scoped list は Backend-managed rows のみ返す。
+   - `runtime_unmanaged` rows は detail / worker-create paths で opportunistic に作られるだけで、list 時に sync/typed されない。
+   - Browser summaries も management kind を露出していないため、unmanaged/external Runtime Workdirs を Backend-managed Workdirs と区別して visible/diagnosable にする requirement を満たしていない。
+
+5. pinned retention が sync で clobber され得る。
+   - schema は `pinned` を保存できるが、`record_worker_summary` は常に `retention_state: "normal"` を書く（`server.rs:3290-3318`）。
+   - `upsert_worker_registry` は conflict 時に `retention_state = excluded.retention_state` で上書きする（`store.rs:223-242`）。
+   - pinned Worker への後続 Runtime observation / list sync が pinned を normal に downgrade できるため、`pinned` が durable retention metadata として保護されていない。
+
+Non-blocking follow-ups:
+- schema 方向性自体は妥当。`worker_registry`, `workdir_registry`, `worker_workdir_links` は typed checks / FK relations 付きで存在する（`store.rs:488-545`）。
+- Backend workdir creation が Runtime materialization 前に pending Backend row を作る点は良い（`server.rs:1276-1327`）。
+- inspected paths では raw materialized Runtime paths が新 Backend registry records に保存されている箇所は見当たらなかった。
+- tests は schema roundtrip / pinned storage / removed Workdir / link basics を cover しているが、上記 blocker paths（runtime worker spawn with workdir, stop cleanup syncing, Backend-registry Worker list projection, unmanaged list diagnostics, pinned preservation under sync）は不足。
+
+Validation performed:
+- Ticket item/thread including routing decision, IntentPacket, implementation report を確認。
+- implementation commit `3e5546ea` の `git show --name-only` / `git show --check` を確認。
+- implementation worktree 内だけで branch/status を確認。
+- `store.rs`, `server.rs`, `catalog.rs`, `worker_backend.rs`, `working_directory.rs` を review。
+- acceptance blockers が inspection で明確だったため、full test/build matrix は再実行していない。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T17:14:02Z -->
+
+## Implementation report
+
+Follow-up implementation progress report after request_changes:
+
+- Coder Pod `yoi-coder-00001KX6BPY7M-worker-workdir` completed the focused fix pass and committed follow-up commit `8695089fba346b8f10d55016b8328337e1c37445 fix: sync backend worker registry projections` on branch `work/00001KX6BPY7M-worker-workdir-registry`。
+- Implementation worktree status was clean at Orchestrator inspection。
+- Orchestrator inspected branch log / commit stats / `git diff --check 86f652a7..HEAD` in the implementation worktree。
+
+Coder-reported fix summary:
+- Browser Worker list now projects from Backend `worker_registry` rows after Runtime observation sync, preserving Backend-only stopped/archive rows。
+- Worker-Workdir relationships are projected from `worker_workdir_links` as authority。
+- Runtime-scoped Worker spawn now writes pending Backend-managed Workdir rows, Worker registry rows, and Worker-Workdir links。
+- Worker stop now updates Backend Worker lifecycle and syncs linked Workdir status to present/removed/missing without deleting canonical rows。
+- Runtime Workdir observation/listing now syncs Runtime observations into Backend registry and projects safe `management_kind` (`backend_managed` / `runtime_unmanaged`)。
+- Existing `pinned` Worker retention is protected from ordinary Runtime sync/upsert clobbering。
+- Tests were added/strengthened for archive/link projection, unmanaged Workdir projection, raw path redaction, removed Workdir preservation, and pinned retention preservation。
+- Frontend type exposure for Workdir `management_kind` was added。
+
+Coder-reported validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Next action:
+- Request focused external re-review against commits `3e5546ea..8695089f` and the whole Ticket acceptance criteria before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T17:22:14Z status: request_changes -->
+
+## Review: request changes
+
+Focused re-review result: request_changes
+
+Evidence reviewed:
+- Implementation worktree is on `work/00001KX6BPY7M-worker-workdir-registry` at `8695089fba346b8f10d55016b8328337e1c37445`, clean。
+- Follow-up fixes most prior blockers:
+  - Worker list now syncs Runtime observations, then projects from `worker_registry` / `worker_workdir_links` (`workers_response`, `merge_worker_registry_projection`)。
+  - Runtime Worker create now writes pending Backend Workdir rows, records Worker rows, and links selected/materialized Workdirs。
+  - Stop path now updates Worker lifecycle and attempts linked Workdir status sync。
+  - Store upsert preserves existing `pinned` when a Runtime sync supplies `normal`。
+  - New registry records still do not store raw materialized Runtime paths。
+
+Blocker:
+- Unmanaged Runtime Workdirs are now mixed into normal Backend-managed Browser lists / launch options。
+  - Ticket requires Runtime-direct/unmanaged Workdirs to be distinguishable and “not mixed into managed lists” (`item.md:61`)。
+  - Follow-up syncs unknown Runtime Workdirs as `runtime_unmanaged`, but `working_directory_summaries()` returns all `workdir_registry` rows via `list_workdir_registry()` (`server.rs:3300-3308`)。
+  - This feeds Browser launch options (`server.rs:3278`) and the workspace-scoped Workdirs list。
+  - The worker-new UI select iterates `options.working_directories` without filtering or labeling `management_kind`, so a `runtime_unmanaged` Workdir can appear/select like a normal managed Workdir。
+  - This is not a safe typed UI distinction and does not satisfy the Backend-managed vs unmanaged boundary。
+
+Non-blocking notes:
+- Runtime-scoped Workdir lists being typed from registry is a good direction。
+- Consider ensuring detail/cleanup/create responses also project through `workdir_summary_from_record`; several paths still return Runtime summaries with `management_kind: None`, even after storing a typed Backend record。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T17:32:02Z -->
+
+## Implementation report
+
+Second follow-up implementation progress report:
+
+- Coder Pod `yoi-coder-00001KX6BPY7M-worker-workdir` completed the focused unmanaged-workdir fix and committed `239f93b084fdcc2201e17fcdbc23eb0140531f16 fix: keep unmanaged workdirs out of managed lists` on branch `work/00001KX6BPY7M-worker-workdir-registry`。
+- Implementation worktree status was clean at Orchestrator inspection。
+- Orchestrator inspected branch log / commit stats / `git diff --check 86f652a7..HEAD` in the implementation worktree。
+
+Coder-reported fix summary:
+- Workspace-scoped Browser Workdir summaries / launch options now include only `backend_managed` Workdir registry rows。
+- Runtime-direct/unmanaged Workdirs remain visible through runtime-scoped projection with explicit `management_kind: runtime_unmanaged`。
+- Tests prove:
+  - `runtime_unmanaged` rows are excluded from managed Browser Workdir summaries / launch options。
+  - unmanaged rows remain distinguishable in runtime projection。
+  - store-level managed listing excludes unmanaged rows while all-row listing still includes them。
+
+Coder-reported validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Next action:
+- Request focused re-review on remaining unmanaged-list blocker and full acceptance status before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T17:35:29Z status: approve -->
+
+## Review: approve
+
+Focused re-review result: approve
+
+Evidence:
+- Follow-up `239f93b084fdcc2201e17fcdbc23eb0140531f16` is present on the requested branch/worktree; worktree was clean during inspection。
+- Remaining blocker is fixed:
+  - Workspace-scoped Browser launch options still use `working_directory_summaries()`, and that now lists only `backend_managed` rows after Runtime observation sync (`server.rs:3279-3308`)。
+  - Store filtering is explicit in `list_managed_workdir_registry()` with `management_kind = 'backend_managed'` (`store.rs:376-392`)。
+  - Runtime-scoped Workdir projection still lists registry rows for the Runtime and preserves explicit `management_kind`, so `runtime_unmanaged` remains diagnosable (`server.rs:3310-3317`, `workdir_summary_from_record`)。
+- Previous blockers sanity-checked:
+  - Worker list syncs Runtime observations then projects from Backend `worker_registry` / link authority (`server.rs:2564-2583`, `merge_worker_registry_projection`)。
+  - Runtime Worker create prepares pending Workdir rows, syncs Worker observations, and links Workdirs (`server.rs:2295-2352`)。
+  - Stop path preserves canonical records and updates Worker/linked Workdir statuses without deleting registry rows (`server.rs:2399-2443`)。
+  - Pinned retention is protected from normal Runtime sync by store upsert `CASE` logic (`store.rs:220-243`)。
+  - New Backend registry structs/schema store ids/status/metadata only; inspected Browser summaries do not expose raw Runtime materialized paths。
+- Focused validation run:
+  - `cargo test -p yoi-workspace-server --lib workdir -- --nocapture` passed 3/3 relevant tests, including managed-list exclusion, unmanaged runtime projection, and pinned/registry roundtrip coverage。
+
+Non-blocking note:
+- Some runtime detail/create response paths still return direct Runtime summaries with `management_kind: None`; list/options surfaces required by this Ticket are now safe, but projecting details through Backend records would make diagnostics more uniformly typed later。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T17:38:03Z -->
+
+## Implementation report
+
+Merge / final validation report:
+
+- Reviewer approved the implementation after the final focused fix。
+- Merged branch `work/00001KX6BPY7M-worker-workdir-registry` into orchestration branch with merge commit `03652f82 merge: worker workdir registry`。
+- Ticket record conflicts from child branch were resolved in favor of Orchestrator-authoritative Ticket records; implementation code changes were merged。
+- Final validation was rerun in `/home/hare/Projects/yoi/.worktree/orchestration` after merge。
+
+Validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check`
+- `cd web/workspace && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Validation log:
+- `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-workdir-final-validation-1783704956.txt`
+
+Reviewed/merged implementation commits:
+- `3e5546ea feat: add backend worker workdir registry`
+- `8695089f fix: sync backend worker registry projections`
+- `239f93b0 fix: keep unmanaged workdirs out of managed lists`
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T17:38:06Z from: inprogress to: done reason: implementation_validated field: state -->
+
+## State changed
+
+Implementation was reviewed, merged into orchestration branch, and final validation passed. Moving to done before closure.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T17:38:20Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T17:38:20Z status: closed -->
+
+## 完了
+
+Backend Worker/Workdir registry and link model を実装・レビュー・merge・検証した。
+
+実装内容:
+- Backend SQLite schema に `worker_registry`, `workdir_registry`, `worker_workdir_links` を追加。
+- Worker registry / Workdir registry / Worker-Workdir link の typed store API と projection を追加。
+- Backend 経由の Workdir 作成で Runtime materialization 前に Backend-managed pending row を作成。
+- Backend / Runtime scoped Worker creation で Worker registry row、Workdir registry row、Worker-Workdir link を同期。
+- Worker list は Runtime observation を同期したうえで Backend `worker_registry` / link authority から projection。
+- Worker stop は canonical registry row を削除せず、Worker lifecycle と linked Workdir status を同期。
+- Workdir list / launch options は Backend-managed rows を基準にし、`runtime_unmanaged` Workdirs は managed Browser list/options に混ぜず runtime/diagnostic projection で区別可能にした。
+- `pinned` retention が通常 Runtime sync で `normal` に clobber されないよう保護。
+- Browser-facing summaries に safe `management_kind` を追加し、raw Runtime materialized path を Backend registry / Browser response に保存・表示しない方針を維持。
+
+Review:
+- 初回 review は 5 blocker で `request_changes`。
+- `8695089f fix: sync backend worker registry projections` で主要 blocker を修正。
+- 2回目 review は unmanaged Workdir が managed list/options に混ざる blocker で `request_changes`。
+- `239f93b0 fix: keep unmanaged workdirs out of managed lists` で残 blocker を修正。
+- 最終 focused re-review は `approve`。
+
+Merge / validation:
+- Merge commit: `03652f82 merge: worker workdir registry`。
+- Final validation passed:
+  - `git diff --check`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-workdir-final-validation-1783704956.txt`
+
+Non-blocking follow-up noted by reviewer:
+- Some runtime detail/create response paths still return direct Runtime summaries with `management_kind: None`; list/options surfaces required by this Ticket are safe, but a future cleanup can project detail responses through Backend records for more uniform diagnostics。
+
+---

.yoi/tickets/00001KX6CRVBE/artifacts/orchestration-plan.jsonl

@@ -0,0 +1,3 @@
+{"id":"orch-plan-20260710-164538-1","ticket_id":"00001KX6CRVBE","kind":"after","related_ticket":"00001KX6BPY7M","note":"Ticket body explicitly states this is a follow-up to `00001KX6BPY7M`. The prerequisite registry/link model is currently inprogress on branch `work/00001KX6BPY7M-worker-workdir-registry` and under external review. Start this cleanup/delete Ticket only after that branch is approved/merged or an explicit combined-work decision is made.","author":"orchestrator","at":"2026-07-10T16:45:38Z"}
+{"id":"orch-plan-20260710-164549-2","ticket_id":"00001KX6CRVBE","kind":"waiting_capacity_note","note":"Queue review after Dashboard authorization. `00001KX6CRVBE` is otherwise well specified, but it depends on the Backend Worker/Workdir registry/link model from `00001KX6BPY7M`, which is currently inprogress/review. Starting now would duplicate/conflict with store schema, server APIs, and Worker/Workdir projections. Leave queued until `00001KX6BPY7M` is approved/merged; then re-route/start from updated orchestration branch.","author":"orchestrator","at":"2026-07-10T16:45:49Z"}
+{"id":"orch-plan-20260710-173850-3","ticket_id":"00001KX6CRVBE","kind":"accepted_plan","accepted_plan":{"summary":"Implement manual Worker/Workdir delete and cleanup operations on top of the merged Backend Worker/Workdir registry/link model. Keep cleanup manual-first with stale revision/digest checks, pinned protection, running-linked Workdir blocks, dirty discard confirmation, raw path redaction, and Browser plan preview/execution surfaces.","branch":"work/00001KX6CRVBE-manual-cleanup","worktree":"/home/hare/Projects/yoi/.worktree/00001KX6CRVBE-manual-cleanup","role_plan":"Orchestrator accepts queued Ticket after prerequisite `00001KX6BPY7M` was approved, merged, validated, closed, and its implementation worktree/branch cleaned. Use sibling Coder for implementation in a dedicated worktree, then sibling Reviewer for read-only review. Orchestrator retains merge/validation/close authority."},"author":"orchestrator","at":"2026-07-10T17:38:50Z"}

.yoi/tickets/00001KX6CRVBE/item.md

@@ -0,0 +1,78 @@
+---
+title: 'Add manual delete and cleanup operations for Workers and workdirs'
+state: 'closed'
+created_at: '2026-07-10T16:11:33Z'
+updated_at: '2026-07-10T18:37:40Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-10T16:45:14Z'
+---
+
+## 背景
+
+Ticket `00001KX6BPY7M` で Backend SQLite に Worker / Workdir registry と Worker-Workdir link を追加する。その後続として、停止済み Worker、Session / transcript、Workdir 実ファイル、removed / missing Workdir record を安全に整理する manual delete / cleanup の仕組みが必要になる。
+
+削除方針は基本手動とする。Yoi が勝手に Worker history や workdir changes を削除しない。Backend は削除候補と理由を plan として提示し、ユーザーまたは明示的な orchestration authority が実行した場合だけ削除する。
+
+## 方針
+
+- Worker lifecycle はシンプルに `running -> stopped -> delete` とする。`archived` を lifecycle state として導入しない。
+- Worker は保存単位であり、Session / transcript は Worker に内包または参照される履歴として扱う。
+- Worker delete は Worker record と内包する Session / transcript history の削除を意味する。Workdir は自動削除しない。
+- `pinned` Worker は delete 候補にしてはならない。この Ticket で pinned flag の永続化と pin/unpin mutation API も明示的に実装する。
+- Session / transcript の圧縮保存や高度な archive storage policy はこの Ticket では扱わない。必要なら後続で `history_storage: full | summarized | deleted` のような別概念として扱う。
+- Workdir 実ファイルは durable history ではなく再現可能 cache として扱い、基本的に手動で削除可能にする。
+- Clean Workdir は、running Worker に紐づいていなければ manual cleanup 候補にできる。
+- Dirty Workdir は削除可能だが、changes ごと消す explicit confirmation を要求する。
+- Dirty orphan は recovery Worker 起動または explicit discard の判断対象であり、通常の clean cleanup とは区別する。
+- Removed / missing Workdir record は、linked Worker が最後の repository/selector/resolved commit summary を保持している場合、manual record delete 候補にできる。
+- Raw Runtime path は Browser-facing plan に出さない。
+
+## 要件
+
+- Backend registry の Worker record に pinned flag または equivalent retention field を追加し、永続化する。
+- Backend API に Worker pin / unpin mutation を追加する。mutation は Backend Worker registry を更新し、Runtime process には不要な副作用を起こさない。
+- Backend registry を基準に Worker / Workdir / link の manual cleanup plan を生成する。
+- Runtime observation を merge して、workdir files の状態を `present` / `removed` / `missing` / `unknown` 相当で表示する。
+- Plan は対象ごとに、削除可能性、blocking reason、削除種別、推定 reclaim bytes を返す。
+- Manual operation として少なくとも以下を表せる。
+  - Worker delete（Worker record +内包 Session / transcript history）
+  - Workdir files cleanup
+  - Dirty Workdir discard with explicit confirmation
+  - Removed/missing Workdir record delete
+  - cleanup_pending retry
+- 実行 API は対象 ID と expected plan revision / digest を受け取り、古い plan に基づく削除を拒否する。
+- `pinned` Worker とそれに紐づく Session history は削除実行時にも保護される。
+- Running Worker に紐づく Workdir files cleanup は拒否される。
+- Dirty Workdir の discard は通常 cleanup とは別 action として明示される。
+- Browser UI は plan preview を表示し、ユーザーが明示的に選択した対象だけ実行できる。
+
+## 受け入れ条件
+
+- `00001KX6BPY7M` の Backend Worker/Workdir registry と link model を前提として実装されている。
+- Backend API で Worker を pin / unpin でき、状態が SQLite に永続化される。
+- Worker list/detail は pinned state を返す。
+- Backend API で Runtime ごとの manual cleanup plan を取得できる。
+- Plan に Worker delete candidates と Workdir cleanup/delete candidates が分かれて表示される。
+- Candidate には削除種別、理由、blocking reason、linked Worker/Workdir ids、pinned state が含まれる。
+- `pinned` Worker は delete/prune candidate にならない。
+- Running Worker に linked された Workdir files は cleanup candidate にならない。
+- Clean + no running linked Worker の Workdir files は cleanup candidate になる。
+- Dirty Workdir は discard confirmation required として表示され、通常 cleanup と区別される。
+- Removed + no retained link の Workdir record は record delete candidate になる。
+- Manual cleanup/delete 実行 API は stale plan revision を拒否する。
+- Manual cleanup/delete 実行後、Backend registry と Runtime observation の状態が更新される。
+- UI は Runtime > Workdirs / Workers 周辺から plan preview と manual execution に到達できる。
+- Raw Runtime path が Browser-facing response / UI に出ない。
+- `cargo test -p yoi-workspace-server --lib` が通る。
+- `cargo test -p worker-runtime --features ws-server,fs-store` が通る。
+- `cd web/workspace && deno task check && deno task test` が通る。
+- `nix build .#yoi --no-link` が通る。
+
+## 非目標
+
+- 容量や期限による自動 prune policy は扱わない。
+- `archived` Worker lifecycle state は導入しない。
+- Session / transcript の圧縮 archive storage は扱わない。
+- Dirty Workdir を自動的に commit/push する recovery Worker 実装は扱わない。
+- Runtime raw path を Backend canonical record に保存することはしない。

.yoi/tickets/00001KX6CRVBE/resolution.md

@@ -0,0 +1,31 @@
+Manual Worker/Workdir delete and cleanup operations を実装・レビュー・merge・検証した。
+
+実装内容:
+- Backend Worker registry row の pin/unpin API を追加し、Worker list/detail に `pinned` / `retention_state` を返すようにした。
+- Runtime ごとの manual cleanup plan API を追加し、Backend Worker/Workdir/link registry と Runtime observation に基づいて Worker delete / Workdir cleanup/delete candidates を生成するようにした。
+- Plan candidate は action kind、reason/blocking reason、linked Worker/Workdir ids、pinned state、cleanliness/file status、running-link status、safe な reclaim bytes placeholder を含む。
+- Manual cleanup execution API は expected plan revision/digest を要求し、stale plan を拒否する。
+- Pinned Worker/history delete、running-linked Workdir cleanup、dirty/unknown Workdir の confirmation なし discard を拒否する。
+- Removed/missing Workdir registry record delete は安全条件のもとで separate action として扱う。
+- Runtime-observed/materialized Workdirs は trusted clean evidence なしに `clean` とせず、`unknown` として扱い、normal clean cleanup ではなく explicit discard confirmation path に乗せる。
+- Browser UI に Runtime Workdirs cleanup preview/execution と Worker pin/unpin controls を追加した。
+- UI では verified-clean cleanup と dirty/unknown-state discard を区別し、raw Runtime materialized path を表示しない。
+
+Review:
+- 初回 review は dirty Workdir safety の実データ経路が不十分として `request_changes`。
+- `361569a6 fix: require discard confirmation for unknown workdirs` で observed Workdir を `unknown` 扱いにし、unknown/dirty cleanup に explicit confirmation を要求するよう修正。
+- focused re-review は `approve`。
+- `estimated_reclaim_bytes: None` は safe size source が未実装のため許容と判断された。
+
+Merge / validation:
+- Merge commit: `4970a58c merge: manual worker workdir cleanup`。
+- Final validation passed:
+  - `git diff --check`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/manual-cleanup-final-validation-1783708592.txt`

.yoi/tickets/00001KX6CRVBE/thread.md

@@ -0,0 +1,359 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T16:11:33Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T16:12:30Z -->
+
+## Decision
+
+Follow-up to 00001KX6BPY7M. Deletion/cleanup policy is intentionally manual-first:
+
+- No automatic prune based on age or capacity in this ticket.
+- Backend presents a plan with reasons, blockers, linked Worker/Workdir ids, retention, pinned state, and expected revision/digest.
+- User or explicit orchestration authority selects targets and executes cleanup.
+- Pinned Worker history is protected.
+- Clean workdir files are cache and may be manually cleaned when not linked to running Workers.
+- Dirty orphan workdirs require recovery/discard decision, not normal prune.
+
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T16:31:05Z -->
+
+## Decision
+
+Clarification: because 00001KX6BPY7M is already in progress, this follow-up ticket explicitly owns implementation of Worker pinned state beyond merely consuming it in prune logic.
+
+Scope added here:
+- Persist pinned flag or equivalent Worker retention field in Backend registry.
+- Add Backend Worker pin/unpin mutation API.
+- Include pinned state in Worker list/detail and prune plan.
+- Ensure manual cleanup execution rejects pinned Worker history and protected linked records.
+
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T16:43:34Z -->
+
+## Decision
+
+Lifecycle clarification:
+
+- Worker lifecycle should stay simple: running -> stopped -> delete.
+- Do not introduce archived as a Worker lifecycle state in this ticket.
+- Worker is the storage unit for Session/transcript history; deleting a Worker deletes or removes access to that history.
+- Pinned remains necessary and blocks Worker deletion.
+- Workdir files are cache and should be manually deletable.
+- Dirty workdir deletion is allowed only with explicit confirmation that changes will be discarded.
+- Compression/archive storage for Session history is out of scope and should be a separate storage policy if needed later.
+
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T16:44:17Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T16:44:17Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-10T16:45:14Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T16:46:04Z -->
+
+## Decision
+
+Routing decision: blocked_by_dependency_or_missing_authority
+
+Reason:
+- Ticket is a manual delete / cleanup follow-up that depends on the Backend Worker/Workdir registry and link authority from `00001KX6BPY7M`。
+- `00001KX6BPY7M` is currently `inprogress` on branch `work/00001KX6BPY7M-worker-workdir-registry` and under external review。
+- This Ticket touches the same store schema, server APIs, Worker/Workdir projections, retention/managed-unmanaged semantics, and cleanup safety rules。
+- Starting this Ticket now would create a high-conflict parallel branch and could implement delete/cleanup behavior against an unreviewed registry model。
+- Therefore this routing pass leaves the Ticket queued and does not record `queued -> inprogress`, create a worktree, or spawn role Pods。
+
+Evidence checked:
+- Ticket body / thread / artifacts。
+- `TicketRelationQuery(00001KX6CRVBE)`: 0 typed relations, but Ticket body/order context makes `00001KX6BPY7M` a practical implementation prerequisite。
+- `TicketOrchestrationPlanQuery(00001KX6CRVBE)`: prior record 0 件だったため、今回 `after 00001KX6BPY7M` と waiting-capacity note を記録。
+- `TicketList`: queued はこの Ticket 1件、inprogress は `00001KX6BPY7M` 1件。
+- Orchestrator worktree git status: clean on `orchestration`。
+
+Next action:
+- `00001KX6BPY7M` の implementation/review/merge outcome を待つ。
+- registry/link model が merge されたら、この Ticket を再 routing し、updated orchestration branch から start する。
+
+Escalate if:
+- 人間が `00001KX6BPY7M` とこの Ticket を同一 combined worktree で統合実装する方針に切り替えたい場合。
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T17:39:00Z -->
+
+## Decision
+
+Routing decision: accept for implementation
+
+Reason:
+- Previously recorded prerequisite `00001KX6BPY7M` has now been reviewed, merged into orchestration branch, final-validated, closed, and its child implementation worktree/branch cleaned up。
+- `TicketRelationQuery(00001KX6CRVBE)` shows no typed blockers。
+- Queue contains this Ticket and there are no other `inprogress` Tickets。
+- Ticket is concrete and well scoped: manual Worker delete / Workdir cleanup plan and execution on top of Backend Worker/Workdir registry/link authority。
+
+Accepted plan:
+- Create dedicated implementation worktree `/home/hare/Projects/yoi/.worktree/00001KX6CRVBE-manual-cleanup` on branch `work/00001KX6CRVBE-manual-cleanup` from current orchestration branch。
+- Route implementation to sibling Coder Pod。
+- Route external review to sibling Reviewer Pod after Coder commit/validation。
+- Orchestrator retains merge, final validation, Ticket close, and cleanup authority。
+
+Design constraints for implementation:
+- Cleanup/delete is manual-first only; no automatic prune policy。
+- Worker lifecycle remains `running -> stopped -> delete`; do not introduce `archived` lifecycle state。
+- `pinned` Worker/history is protected in plan generation and execution。
+- Workdir file cleanup blocks when linked to running Workers。
+- Dirty Workdir discard is explicit and separate from ordinary clean cleanup。
+- Execution must reject stale plan revision/digest。
+- Browser-facing responses/UI must not expose raw Runtime paths。
+- Workdir/Worker canonical records should remain Backend/registry based and safe after execution。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T17:39:03Z from: queued to: inprogress reason: accepted_for_implementation field: state -->
+
+## State changed
+
+Prerequisite registry/link model is now closed and merged. Accepting queued manual cleanup Ticket for implementation before creating worktree or spawning role Pods.
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T18:13:40Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod `yoi-coder-00001KX6CRVBE-manual-cleanup` completed implementation in `/home/hare/Projects/yoi/.worktree/00001KX6CRVBE-manual-cleanup` on branch `work/00001KX6CRVBE-manual-cleanup`。
+- Implementation commit: `ba44391acfdb8076c06ced9324b74d6cc63910ab feat: add manual worker workdir cleanup`。
+- Orchestrator inspected the worktree status, branch log, commit stats, and `git diff --check 5f762a6c..HEAD`; worktree was clean and diff check passed。
+
+Coder-reported implementation summary:
+- Added Backend Worker retention APIs for pin/unpin registry rows; Worker list/detail carries `pinned` / `retention_state`; pin/unpin mutates Backend registry only and does not affect Runtime processes。
+- Added manual Runtime cleanup plan API with separate Worker delete and Workdir cleanup/delete candidates, action kind, reason/blocking reason, linked ids, pinned state, cleanliness/file status, running-link state, and safe reclaim-byte placeholder。
+- Added manual cleanup execution API requiring expected plan revision/digest; rejects stale plans, pinned Worker/history delete, running-linked Workdir cleanup, and dirty cleanup without explicit discard confirmation; allows safe removed/missing Workdir registry deletion。
+- Added Browser UI for manual cleanup preview/execution on Runtime Workdirs page and Backend-only pin/unpin controls on Worker page。
+- Added focused tests for plan generation, stale rejection, pinned protection, running-linked Workdir blocking, dirty confirmation, removed/missing record delete, and raw path redaction。
+
+Coder-reported validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Next action:
+- Route to external Reviewer Pod before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T18:19:11Z status: request_changes -->
+
+## Review: request changes
+
+External review result: request_changes
+
+Blocker:
+- Dirty Workdir safety is not implemented against real Runtime/filesystem state。
+- Cleanup plan decides `WorkdirDirtyDiscard` solely from `WorkdirRegistryRecord.cleanliness` (`crates/workspace-server/src/server.rs:1689-1695`)。
+- Runtime observation sync always writes `cleanliness: "clean"` for observed Workdirs (`server.rs:4179-4199`) and there is no code outside tests that records `"dirty"` (`rg "cleanliness.*dirty|dirty.*cleanliness"` only finds plan/test use)。
+- Execution then treats such targets as `WorkdirCleanCleanup` and calls Runtime cleanup without dirty confirmation (`server.rs:1851-1852`)。
+- Runtime cleanup uses forced removal (`crates/worker-runtime/src/working_directory.rs:505-508`)。
+- This violates acceptance items requiring safe dirty/clean status representation and explicit confirmation before dirty discard。
+
+Test gap:
+- The dirty confirmation test seeds a synthetic registry row with `cleanliness = "dirty"` (`server.rs:5436-5449`, `5551-5580`), so it does not catch the real path where Runtime/workdir sync overwrites or fails to detect dirty files。
+
+Positive evidence:
+- pin/unpin API/routes and retention projection exist (`server.rs:1544-1584`, `2032-2072`, `4008-4022`)。
+- plan/execution endpoints include digest/revision stale checks and pinned/running-link blocking (`server.rs:1766-1840`)。
+- UI preview/execution and pin controls are present without raw path fields。
+
+Non-blocking note:
+- `estimated_reclaim_bytes` is present but always `None`; confirm whether “when safe” requires actual byte estimation before approval。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T18:30:52Z -->
+
+## Implementation report
+
+Follow-up implementation progress report after request_changes:
+
+- Coder Pod `yoi-coder-00001KX6CRVBE-manual-cleanup` completed the dirty/unknown Workdir safety fix and committed `361569a69efcba929b59b9c48113add5499d5068 fix: require discard confirmation for unknown workdirs`。
+- Orchestrator inspected the implementation worktree status, branch log, commit stats, and `git diff --check 5f762a6c..HEAD`; worktree was clean and diff check passed。
+
+Coder-reported fix summary:
+- Runtime-observed/materialized Workdirs are no longer marked `clean` without trusted clean evidence。
+- Observed Workdirs now sync as `cleanliness: "unknown"`。
+- Cleanup plan downgrades stale `clean` registry rows to `unknown` when real Runtime observation exists。
+- Present Workdirs with `cleanliness: "unknown"` or `dirty` are classified as discard-confirmation targets, not normal clean cleanup。
+- Direct Workdir cleanup rejects unknown/dirty Workdirs and requires the cleanup execution API with explicit discard confirmation。
+- Browser UI labels distinguish verified-clean cleanup from dirty/unknown-state discard。
+- `estimated_reclaim_bytes` remains intentionally `None` unless a safe estimate is available。
+
+Regression tests added/updated:
+- Real observed Workdir without verified clean evidence is classified as `unknown` and `WorkdirDirtyDiscard`。
+- Normal/direct cleanup is rejected for unknown Workdir state。
+- Dirty/unknown discard requires explicit confirmation。
+- Stale `clean` registry state is downgraded when Runtime observation exists。
+- Existing path-safe cleanup test uses explicit cleanup execution confirmation。
+
+Coder-reported validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Next action:
+- Request focused re-review on the dirty/unknown Workdir blocker and overall acceptance status before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T18:36:11Z status: approve -->
+
+## Review: approve
+
+Focused re-review result: approve
+
+Evidence:
+- Dirty/unknown blocker is fixed。
+- Runtime/materialized Workdirs now sync as `cleanliness: "unknown"` (`crates/workspace-server/src/server.rs:4208`; pending create also around `1400`)。
+- Cleanup planning downgrades any live-observed non-dirty row to unknown before action selection (`server.rs:1689-1701`)。
+- Unknown/dirty present Workdirs become `WorkdirDirtyDiscard` with explicit-confirmation reasons (`server.rs:1721-1725`)。
+- Direct Workdir DELETE rejects that path before calling Runtime cleanup (`server.rs:1491-1509`)。
+- Execution still checks expected revision + digest for staleness (`server.rs:1780-1788`), blocks pinned/running-linked Workdirs (`server.rs:1703-1707`, `1834-1839`), and requires `confirm_dirty_discard_target_ids` before forced Runtime cleanup for dirty/unknown targets (`server.rs:1842-1850`)。
+- Normal clean cleanup is only reachable for `clean` candidates (`server.rs:1698-1699`, `1860-1861`)。
+
+No observed regressions in reviewed acceptance points:
+- Pinned Worker deletion remains blocked (`server.rs:1811-1816`)。
+- Workdir record delete remains separate for removed/missing (`server.rs:1696-1697`, `1869-1879`)。
+- Plan responses expose ids/status/reasons/links/retention but not raw paths (`server.rs:620-633`)。
+- UI labels dirty/unknown discard distinctly from verified-clean cleanup with a separate confirm checkbox (`web/workspace/.../workdirs/+page.svelte`)。
+- `estimated_reclaim_bytes: None` is acceptable here because no safe size source is implemented/exposed; the optional field is present and avoids raw-path traversal/leakage。
+
+Validation performed by reviewer:
+- `cargo test -p yoi-workspace-server cleanup --lib` passed。
+- Targeted regression tests `observed_workdir_without_verified_clean_evidence_requires_discard_confirmation` and `stale_clean_registry_row_is_downgraded_by_real_observation_before_cleanup` passed。
+- `git diff --check HEAD^..HEAD` passed。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T18:37:23Z -->
+
+## Implementation report
+
+Merge / final validation report:
+
+- Reviewer approved the implementation after the dirty/unknown Workdir safety fix。
+- Merged branch `work/00001KX6CRVBE-manual-cleanup` into orchestration branch with merge commit `4970a58c merge: manual worker workdir cleanup`。
+- Ticket record conflicts from child branch were resolved in favor of Orchestrator-authoritative Ticket records; implementation code changes were merged。
+- Final validation was rerun in `/home/hare/Projects/yoi/.worktree/orchestration` after merge。
+
+Validation passed:
+- `git diff --check`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check`
+- `cd web/workspace && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Validation log:
+- `/run/user/1000/yoi/yoi-orchestrator/bash-output/manual-cleanup-final-validation-1783708592.txt`
+
+Reviewed/merged implementation commits:
+- `ba44391a feat: add manual worker workdir cleanup`
+- `361569a6 fix: require discard confirmation for unknown workdirs`
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T18:37:27Z from: inprogress to: done reason: implementation_validated field: state -->
+
+## State changed
+
+Implementation was reviewed, merged into orchestration branch, and final validation passed. Moving to done before closure.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T18:37:40Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T18:37:40Z status: closed -->
+
+## 完了
+
+Manual Worker/Workdir delete and cleanup operations を実装・レビュー・merge・検証した。
+
+実装内容:
+- Backend Worker registry row の pin/unpin API を追加し、Worker list/detail に `pinned` / `retention_state` を返すようにした。
+- Runtime ごとの manual cleanup plan API を追加し、Backend Worker/Workdir/link registry と Runtime observation に基づいて Worker delete / Workdir cleanup/delete candidates を生成するようにした。
+- Plan candidate は action kind、reason/blocking reason、linked Worker/Workdir ids、pinned state、cleanliness/file status、running-link status、safe な reclaim bytes placeholder を含む。
+- Manual cleanup execution API は expected plan revision/digest を要求し、stale plan を拒否する。
+- Pinned Worker/history delete、running-linked Workdir cleanup、dirty/unknown Workdir の confirmation なし discard を拒否する。
+- Removed/missing Workdir registry record delete は安全条件のもとで separate action として扱う。
+- Runtime-observed/materialized Workdirs は trusted clean evidence なしに `clean` とせず、`unknown` として扱い、normal clean cleanup ではなく explicit discard confirmation path に乗せる。
+- Browser UI に Runtime Workdirs cleanup preview/execution と Worker pin/unpin controls を追加した。
+- UI では verified-clean cleanup と dirty/unknown-state discard を区別し、raw Runtime materialized path を表示しない。
+
+Review:
+- 初回 review は dirty Workdir safety の実データ経路が不十分として `request_changes`。
+- `361569a6 fix: require discard confirmation for unknown workdirs` で observed Workdir を `unknown` 扱いにし、unknown/dirty cleanup に explicit confirmation を要求するよう修正。
+- focused re-review は `approve`。
+- `estimated_reclaim_bytes: None` は safe size source が未実装のため許容と判断された。
+
+Merge / validation:
+- Merge commit: `4970a58c merge: manual worker workdir cleanup`。
+- Final validation passed:
+  - `git diff --check`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/manual-cleanup-final-validation-1783708592.txt`
+
+---

.yoi/tickets/00001KX6WVNPD/artifacts/orchestration-plan.jsonl

@@ -0,0 +1,3 @@
+{"id":"orch-plan-20260710-220020-1","ticket_id":"00001KX6WVNPD","kind":"after","related_ticket":"00001KX6Y2A9Q","note":"Ticket has explicit typed `depends_on` relation to `00001KX6Y2A9Q`. That prerequisite is currently `inprogress` implementing the WorkerFilesystemAuthority boundary this Ticket relies on. Start only after `00001KX6Y2A9Q` is approved, merged, and closed or an explicit combined-work decision is made.","author":"orchestrator","at":"2026-07-10T22:00:20Z"}
+{"id":"orch-plan-20260710-220024-2","ticket_id":"00001KX6WVNPD","kind":"waiting_capacity_note","note":"Dashboard queue routing inspected. This Ticket is otherwise concrete, but typed relation metadata reports blocker `00001KX6Y2A9Q` in state `inprogress`. That prerequisite introduces/removes the Worker filesystem-authority/cwd boundary used by this Ticket. Starting now would duplicate or conflict with that refactor. Leave queued and re-route after prerequisite merge/close.","author":"orchestrator","at":"2026-07-10T22:00:24Z"}
+{"id":"orch-plan-20260710-233758-3","ticket_id":"00001KX6WVNPD","kind":"accepted_plan","accepted_plan":{"summary":"Implement embedded Runtime no-workdir Worker creation policy using the merged `WorkerFilesystemAuthority` boundary: embedded Runtime may create Workers without selected workdir using `WorkerFilesystemAuthority::None`, non-embedded/local-authority paths preserve workdir requirements, no-workdir Workers expose no filesystem/Bash tool surface, and UI/API make workdir optional only for embedded Runtime.","branch":"work/00001KX6WVNPD-embedded-no-workdir-policy","worktree":"/home/hare/Projects/yoi/.worktree/00001KX6WVNPD-embedded-no-workdir-policy","role_plan":"Orchestrator accepts queued Ticket after prerequisite `00001KX6Y2A9Q` was approved, merged, validated, and closed. Use sibling Coder for implementation in a dedicated worktree, then sibling Reviewer for read-only review. Orchestrator retains merge/final-validation/close/worktree cleanup authority. Per current user instruction, do not call StopPod during cleanup."},"author":"orchestrator","at":"2026-07-10T23:37:58Z"}

.yoi/tickets/00001KX6WVNPD/artifacts/relations.json

@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "relations": [
+    {
+      "ticket_id": "00001KX6WVNPD",
+      "kind": "depends_on",
+      "target": "00001KX6Y2A9Q",
+      "note": "Embedded no-workdir Worker policy requires WorkerFilesystemAuthority::None so workspace-root/default-scope fallback is not filesystem authority.",
+      "author": "yoi ticket",
+      "at": "2026-07-10T21:24:10Z"
+    }
+  ]
+}

.yoi/tickets/00001KX6WVNPD/item.md

@@ -0,0 +1,37 @@
+---
+title: 'Embedded no-workdir Worker authority policy'
+state: 'closed'
+priority: 'P1'
+created_at: '2026-07-10T20:52:43Z'
+updated_at: '2026-07-11T00:13:51Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-10T22:00:07Z'
+---
+
+## 背景
+
+`worker/new` では現在 workdir 選択が必須になっているが、embedded Runtime 上に Worker を作る場合は workdir 無しで案内専用の Worker を起動できるようにしたい。
+
+現状の整理では、前提チケット `00001KX6Y2A9Q` で Worker の filesystem authority が `WorkerFilesystemAuthority::{None, Local}` に分離され、Worker 直下の作業ディレクトリ property は削除される。このチケットではその前提を使い、embedded Runtime の workdir 未指定 spawn を `WorkerFilesystemAuthority::None` として扱う。
+
+embedded no-workdir Worker では、workspace root や default scope によって意図せず repository filesystem authority を持たないようにする必要がある。
+
+## 要件
+
+- `worker/new` は、選択 Runtime が embedded の場合に限り workdir 未指定で Create できる。
+- embedded + workdir ありの場合は、Runtime/Execution backend が materialized working directory binding を `WorkerFilesystemAuthority::Local` と Worker status に反映する。
+- embedded + workdir なしの場合は、`WorkerFilesystemAuthority::None` を指定し、workspace root fallback を filesystem authority として扱わない。
+- embedded + workdir なしの場合は filesystem tools / Bash / write-capable tools を登録せず、案内・会話中心の read-only/guidance-only Worker として扱う。
+- FS tools は ambient process directory ではなく、Worker の explicit filesystem authority を基準に登録される。
+- Bash は filesystem sandbox ではないため、no-workdir embedded では登録しない。
+
+## 受け入れ条件
+
+- embedded Runtime 選択時、UI/API 経由で workdir 未指定 Worker を作成できる。
+- non-embedded または filesystem authority が必要な Runtime/launch path では、既存の workdir 必須制約または明示 authority 要求が維持される。
+- embedded no-workdir Worker は `WorkerFilesystemAuthority::None` で作成される。
+- embedded no-workdir Worker の model-visible tool surface に filesystem tools と Bash が現れないことをテストで確認できる。
+- embedded workdir あり Worker では、working directory status が Worker summary/detail に投影され、tools の working directory base が `WorkerFilesystemAuthority::Local` に一致する。
+- `Glob` / `Grep` の path 省略や `Bash` の初期ディレクトリ指定が、no-workdir embedded の権限漏れにならない。
+- 変更後に `cargo test` と `nix build .#yoi` が通る。

.yoi/tickets/00001KX6WVNPD/resolution.md

@@ -0,0 +1,28 @@
+Embedded no-workdir Worker authority policy を実装・レビュー・merge・検証した。
+
+実装内容:
+- Runtime launch metadata に `working_directory_required` を追加し、embedded Runtime のみ workdir optional として扱うようにした。
+- Workspace/API Worker create path で、embedded Runtime では no-workdir Worker creation を許可し、non-embedded Runtime では no-workdir creation を typed diagnostic で拒否するようにした。
+- Embedded no-workdir launch は Runtime へ working directory なしで渡され、merged `WorkerFilesystemAuthority` 境界により `WorkerFilesystemAuthority::None` になる。
+- Workdir-present embedded Worker は materialized binding を `WorkerFilesystemAuthority::Local` として保持する既存 behavior を維持。
+- Browser Worker creation UI で embedded Runtime の場合だけ “No working directory — guidance-only Worker; filesystem tools are disabled” を選べるようにした。
+- No-workdir launch では relative cwd input を隠し、filesystem tools / Bash が disabled であることを明示。
+- Tests で launch metadata、non-embedded no-workdir rejection、embedded no-workdir request construction、および existing runtime tests による no-workdir tool omission/no cwd fallback を確認。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included API optionality bounds, non-embedded rejection, authority construction path, no filesystem/Bash tool surface coverage, workdir-present behavior, and Browser labeling。
+
+Merge / validation:
+- Merge commit: `2f7b8094 merge: embedded no-workdir worker policy`。
+- Final validation passed:
+  - `rg 'worker\\.cwd\\(' . || true`
+  - `git diff --check`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/embedded-no-workdir-final-validation-1783728763.txt`

.yoi/tickets/00001KX6WVNPD/thread.md

@@ -0,0 +1,310 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T20:52:43Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: plan author: hare at: 2026-07-10T21:24:57Z -->
+
+## Plan
+
+整理結果:
+
+1. 00001KX6Y2A9Q WorkerFilesystemAuthority
+   - hard dependency なし。
+   - no-workdir を filesystem authority none として型で表現する基盤。
+
+2. 00001KX6WVNPD Embedded no-workdir Worker authority policy
+   - depends_on: 00001KX6Y2A9Q。
+   - UI/API の workdir 任意化と embedded no-workdir tool surface 制御を実装する。
+
+3. 00001KX6Y6ZEA WorkspaceBackend / workspace_id 分離
+   - depends_on: 00001KX6Y2A9Q。
+   - workspace_root path 依存を workspace_id + Runtime-injected WorkspaceClient へ移行する。
+   - embedded no-workdir MVP をブロックしない。
+
+Hard dependencies は WorkerFilesystemAuthority を共通前提に限定する。WorkspaceBackend 分離は embedded no-workdir policy の MVP には related だが depends_on にはしない。
+
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T21:54:14Z -->
+
+## Decision
+
+前提チケット `00001KX6Y2A9Q` で Worker 直下の作業ディレクトリ property は削除されるため、このチケットはその存在を前提にしない。embedded workdir ありは `WorkerFilesystemAuthority::Local`、workdir なしは `WorkerFilesystemAuthority::None` として扱い、tool registration もその authority から導出する。
+
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T21:59:20Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T21:59:20Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-10T22:00:07Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T22:00:33Z -->
+
+## Decision
+
+Routing decision: blocked_by_dependency
+
+Reason:
+- Dashboard queue authorization was inspected, but this Ticket has an explicit typed `depends_on` relation to `00001KX6Y2A9Q`。
+- `00001KX6Y2A9Q` is currently `inprogress` and is implementing the Worker filesystem-authority / no-workdir / cwd-removal boundary this Ticket depends on。
+- Starting this Ticket before that boundary is reviewed/merged would duplicate or conflict with constructor/restore/spawn/tool-registration changes。
+- Therefore this routing pass leaves the Ticket `queued` and does not record `queued -> inprogress`, create a worktree, or spawn role Pods。
+
+Evidence checked:
+- Ticket body / recent thread / artifacts。
+- `TicketRelationQuery(00001KX6WVNPD)`: includes dependency on `00001KX6Y2A9Q`。
+- `TicketList(inprogress)`: `00001KX6Y2A9Q` is the active inprogress Ticket。
+- Orchestrator worktree status: clean。
+
+Next action:
+- Re-route this Ticket after `00001KX6Y2A9Q` is approved, merged, validated, and closed。
+- Escalate only if a human explicitly requests combined implementation in the same branch/worktree。
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T23:38:28Z -->
+
+## Decision
+
+Routing decision: implementation_ready
+
+Reason:
+- 前提 Ticket `00001KX6Y2A9Q` は approved / merged / final-validated / closed 済みで、`WorkerFilesystemAuthority::{None, Local}` と no-workdir core filesystem/Bash tool omission boundary が利用可能になった。
+- この Ticket は embedded Runtime の workdir 未指定 Worker 作成 policy と UI/API 制約に集中しており、目的・binding decision・受け入れ条件が具体的である。
+- `TicketRelationQuery(00001KX6WVNPD)` の blocker view は空で、残る outgoing `depends_on 00001KX6Y2A9Q` は closed prerequisite になっている。
+- `TicketOrchestrationPlanQuery(00001KX6WVNPD)` の既存 waiting note は prerequisite inprogress を理由にしたものだったため、現在は解消済み。
+- Orchestrator worktree は clean。既存 child implementation branch/worktree は見当たらない。
+
+Evidence checked:
+- Ticket body / thread / relations / orchestration plan。
+- Related closed Ticket `00001KX6Y2A9Q` resolution/review/validation evidence。
+- `TicketList(inprogress)`: 0 件。
+- `git status --short --branch` and `git worktree list` in `/home/hare/Projects/yoi/.worktree/orchestration`。
+- Current queue also contains related `00001KX6Y6ZEA`, but its Worker workspace-backend refactor touches overlapping Worker context/constructor surfaces; it will be held separately with a conflict/migration-boundary reason rather than started in parallel。
+
+IntentPacket:
+
+Intent:
+- Embedded Runtime 選択時に、workdir 未指定の guidance/conversation-oriented Worker を作成できるようにする。
+- Embedded no-workdir Worker は `WorkerFilesystemAuthority::None` として作られ、repository filesystem authority / cwd fallback / filesystem tools / Bash を持たない。
+
+Binding decisions / invariants:
+- no-workdir authority は merged `WorkerFilesystemAuthority::None` を使う。
+- workspace root / process cwd / runtime cwd / manifest override / default scope を filesystem authority fallback にしない。
+- filesystem tools (`Read`, `Write`, `Edit`, `Glob`, `Grep`) と `Bash` は no-workdir embedded Worker では construct/register/model-visible にしない。
+- Bash は filesystem sandbox ではないため、no-workdir embedded では登録しない。
+- non-embedded または local/filesystem-authority-required launch path では、既存の workdir 必須制約または明示 authority requirement を維持する。
+- Worker 直下の `cwd` property / `worker.cwd()` 前提に戻さない。
+
+Requirements / acceptance criteria:
+- UI/API 経由で embedded Runtime の workdir 未指定 Worker create ができる。
+- embedded + workdir ありは materialized binding を `WorkerFilesystemAuthority::Local` と Worker summary/detail に反映する。
+- embedded + workdir なしは `WorkerFilesystemAuthority::None` になり、model-visible tool surface に fs tools / Bash が出ないことをテストで確認できる。
+- `Glob` / `Grep` path 省略や `Bash` initial directory が no-workdir embedded の権限漏れにならない。
+- Browser/UI では workdir optional が embedded Runtime に限られ、non-embedded/local authority path の制約を緩めない。
+
+Implementation latitude:
+- API DTO / UI form model / runtime spawn request shape の具体的な整理は coder が既存 pattern に沿って選んでよい。
+- workdir 未指定状態の UI 表示文言・validation placement は、binding invariant を満たす範囲で local tactic としてよい。
+- tests の配置は worker-runtime / workspace-server / web の既存近接 test pattern に合わせてよい。
+
+Escalate if:
+- embedded no-workdir Worker に workspace API access を付けるために `WorkspaceBackend` / `WorkspaceClient` の先行導入が必須になる場合。
+- no-workdir Worker へ fs/Bash tool の error-only stub や empty-scope fallback を登録したくなる場合。
+- non-embedded Worker の workdir requirement を緩める必要が出る場合。
+- `WorkerFilesystemAuthority` の既存 invariant を変更する必要が出る場合。
+
+Validation:
+- `git diff --check`
+- focused grep/check that no no-workdir path reintroduces `worker.cwd()` or local cwd fallback。
+- `cargo test -p worker --lib --tests` if worker crate is touched。
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test` if web/API/types are touched。
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Current code map / likely touch points:
+- `crates/worker/src/worker.rs`, `crates/worker/src/controller.rs` for existing authority boundary verification only if needed。
+- `crates/worker-runtime/src/worker_backend.rs` / working-directory binding and embedded spawn paths。
+- `crates/workspace-server/src/server.rs` / API DTOs for Worker create/runtime options。
+- `web/workspace` worker creation UI/types if workdir optionality is exposed there。
+
+Critical risks / reviewer focus:
+- Hidden filesystem authority through workspace root / process cwd / runtime cwd fallback。
+- no-workdir Worker showing fs tools/Bash in model-visible schema。
+- empty-scope/error-only fs tool registration rather than no registration。
+- UI/API accidentally allowing non-embedded no-workdir Worker where local filesystem authority is still required。
+- regression of embedded workdir-present Worker status/tool cwd behavior。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T23:38:34Z from: queued to: inprogress reason: accepted_for_implementation field: state -->
+
+## State changed
+
+Prerequisite `00001KX6Y2A9Q` is now closed and merged. This Ticket is accepted for implementation before creating a worktree or spawning role Pods.
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-11T00:00:55Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod `yoi-coder-00001KX6WVNPD-no-workdir-policy` completed an implementation pass in `/home/hare/Projects/yoi/.worktree/00001KX6WVNPD-embedded-no-workdir-policy` on branch `work/00001KX6WVNPD-embedded-no-workdir-policy`。
+- Implementation commit: `10267869ae0dfe02e186dc69fec14151926f5009 feat: enforce embedded no-workdir worker policy`。
+- Files touched:
+  - `crates/workspace-server/src/server.rs`
+  - `web/workspace/src/lib/workspace-sidebar/types.ts`
+  - `web/workspace/src/lib/workspace-sidebar/worker-launch.test.ts`
+  - `web/workspace/src/routes/w/[workspaceId]/workers/new/+page.svelte`
+- Orchestrator inspected worktree status, branch log, commit stats, `git diff --check 83c9d884..HEAD`, and `rg 'worker\\.cwd\\(\\)' .`; worktree was clean, diff check passed, and no `worker.cwd()` matches were found。
+
+Implementation summary:
+- Added Browser/API launch metadata for whether a runtime requires working directory selection。
+- Embedded Runtime can be marked as workdir-optional; non-embedded Runtime remains workdir-required。
+- Server-side creation path rejects no-workdir Worker creation unless the target runtime is embedded, using a typed diagnostic。
+- Browser Worker creation UI offers “no workdir / embedded conversation only” only when the selected runtime allows it。
+- Relative cwd input is hidden for no-workdir launch and UI text explains no filesystem tools or Bash are available without workdir。
+- Tests were added/updated for launch metadata, non-embedded no-workdir rejection, and web request construction for embedded no-workdir launch。
+
+Next action:
+- Route to external Reviewer Pod before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-11T00:12:24Z status: approve -->
+
+## Review: approve
+
+External review result: approve
+
+Evidence:
+- UI/API optionality is correctly bounded: launch options expose `working_directory_required` and set it false only for embedded runtime (`crates/workspace-server/src/server.rs:749`, `:3823`), while browser request construction omits `working_directory` for embedded no-workdir mode and tests cover that (`web/workspace/src/lib/workspace-sidebar/worker-launch.test.ts:80`)。
+- Non-embedded no-workdir is rejected in workspace/API launch paths (`server.rs:2639`, `:2839`) with tests covering the 400 behavior (`server.rs:6383`, `:6554`)。
+- Authority boundary is preserved: absent materialized workdir reaches runtime as no working directory (`server.rs:2652`) and worker-runtime maps that to `WorkerFilesystemAuthority::None`; workdir-present maps to `Local(root, cwd)` (`crates/worker-runtime/src/worker_backend.rs:301`)。
+- Tool surface/no fallback is covered by existing runtime tests asserting no cwd observation and omission of `Read`/`Write`/`Edit`/`Glob`/`Grep`/`Bash` for no-workdir workers (`worker_backend.rs:1151`, `:1216`)。
+- Workdir-present behavior remains covered by materialized binding assertions (`worker_backend.rs:1151`) and server worker creation still links/summarizes workdir-present workers。
+- Browser labeling is explicit: embedded mode offers “No working directory — guidance-only Worker; filesystem tools are disabled” and non-embedded paths require selection (`+page.svelte:153`, `:289`)。
+
+Validation performed by reviewer:
+- `cargo test -p yoi-workspace-server no_workdir -- --nocapture`
+- `cargo test -p worker-runtime --features ws-server --lib -- --nocapture`
+- `cd web/workspace && deno task test`
+- Final `git status --short` was clean。
+
+Blockers: none。
+Non-blocking notes: none。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-11T00:13:31Z -->
+
+## Implementation report
+
+Merge / final validation report:
+
+- Reviewer approved the implementation with no blockers。
+- Merged branch `work/00001KX6WVNPD-embedded-no-workdir-policy` into orchestration branch with merge commit `2f7b8094 merge: embedded no-workdir worker policy`。
+- Final validation was rerun in `/home/hare/Projects/yoi/.worktree/orchestration` after merge。
+
+Validation passed:
+- `rg 'worker\\.cwd\\(' . || true`: no matches。
+- `git diff --check`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check`
+- `cd web/workspace && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Validation log:
+- `/run/user/1000/yoi/yoi-orchestrator/bash-output/embedded-no-workdir-final-validation-1783728763.txt`
+
+Reviewed/merged implementation commit:
+- `10267869 feat: enforce embedded no-workdir worker policy`
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-11T00:13:37Z from: inprogress to: done reason: implementation_validated field: state -->
+
+## State changed
+
+Implementation was reviewed, merged into orchestration branch, and final validation passed. Moving to done before closure.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-11T00:13:51Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-11T00:13:51Z status: closed -->
+
+## 完了
+
+Embedded no-workdir Worker authority policy を実装・レビュー・merge・検証した。
+
+実装内容:
+- Runtime launch metadata に `working_directory_required` を追加し、embedded Runtime のみ workdir optional として扱うようにした。
+- Workspace/API Worker create path で、embedded Runtime では no-workdir Worker creation を許可し、non-embedded Runtime では no-workdir creation を typed diagnostic で拒否するようにした。
+- Embedded no-workdir launch は Runtime へ working directory なしで渡され、merged `WorkerFilesystemAuthority` 境界により `WorkerFilesystemAuthority::None` になる。
+- Workdir-present embedded Worker は materialized binding を `WorkerFilesystemAuthority::Local` として保持する既存 behavior を維持。
+- Browser Worker creation UI で embedded Runtime の場合だけ “No working directory — guidance-only Worker; filesystem tools are disabled” を選べるようにした。
+- No-workdir launch では relative cwd input を隠し、filesystem tools / Bash が disabled であることを明示。
+- Tests で launch metadata、non-embedded no-workdir rejection、embedded no-workdir request construction、および existing runtime tests による no-workdir tool omission/no cwd fallback を確認。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included API optionality bounds, non-embedded rejection, authority construction path, no filesystem/Bash tool surface coverage, workdir-present behavior, and Browser labeling。
+
+Merge / validation:
+- Merge commit: `2f7b8094 merge: embedded no-workdir worker policy`。
+- Final validation passed:
+  - `rg 'worker\\.cwd\\(' . || true`
+  - `git diff --check`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/embedded-no-workdir-final-validation-1783728763.txt`
+
+---

.yoi/tickets/00001KX6Y2A9Q/artifacts/orchestration-plan.jsonl

@@ -0,0 +1 @@
+{"id":"orch-plan-20260710-215118-1","ticket_id":"00001KX6Y2A9Q","kind":"accepted_plan","accepted_plan":{"summary":"Introduce explicit `WorkerFilesystemAuthority` with `None` and `Local(LocalWorkingDirectory)` variants, remove Worker-level `cwd` field/accessor, gate core filesystem tools/Bash on local filesystem authority, and update constructor/restore/embedded/spawn paths plus tests so no-workdir Workers have no filesystem tool surface or cwd fallback.","branch":"work/00001KX6Y2A9Q-worker-filesystem-authority","worktree":"/home/hare/Projects/yoi/.worktree/00001KX6Y2A9Q-worker-filesystem-authority","role_plan":"Orchestrator accepts queued Ticket after inspecting current Ticket, relations, orchestration plan, inprogress queue, and clean orchestration worktree. Use sibling Coder for implementation in a dedicated worktree, then sibling Reviewer for read-only review. Orchestrator retains merge/final-validation/close/cleanup authority."},"author":"orchestrator","at":"2026-07-10T21:51:18Z"}

.yoi/tickets/00001KX6Y2A9Q/artifacts/relations.json

@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "relations": [
+    {
+      "ticket_id": "00001KX6Y2A9Q",
+      "kind": "related",
+      "target": "00001KX6WVNPD",
+      "note": "WorkerFilesystemAuthority provides the implementation boundary for embedded no-workdir Worker authority policy.",
+      "author": "yoi ticket",
+      "at": "2026-07-10T21:14:19Z"
+    }
+  ]
+}

.yoi/tickets/00001KX6Y2A9Q/item.md

@@ -0,0 +1,60 @@
+---
+title: 'Implement WorkerFilesystemAuthority for no-workdir Workers'
+state: 'closed'
+priority: 'P1'
+created_at: '2026-07-10T21:13:49Z'
+updated_at: '2026-07-10T22:45:01Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-10T21:51:00Z'
+---
+
+## 背景
+
+Worker 実装は現在 `workspace_root: PathBuf` と `cwd: PathBuf` を必須で持ち、tools 登録も `worker.cwd()` と `worker.scope()` を基準にしている。workdir あり Worker では `cwd` が実質 working directory として機能しており問題ないが、embedded no-workdir Worker では「filesystem authority が存在しない」状態を型として表現できない。
+
+no-workdir Worker は、内部プロセスの実 cwd や fallback 元が何であっても、Worker authority としては filesystem に一切アクセスできないべきである。仮想 cwd を与えるだけでは、`Glob` / `Grep` の default base、`Bash.current_dir`、scope default、Ticket/memory/workflow path 解決などから再び filesystem 接点が発生し得る。
+
+## 要件
+
+- Worker に filesystem authority の有無を表す明示的な型を導入する。
+- Worker の `cwd: PathBuf` property と `worker.cwd()` accessor を削除し、working directory は `WorkerFilesystemAuthority::Local` の中だけで表現する。
+- workdir あり Worker は local working directory として `root` と `cwd` を持ち、既存の tools default base / Bash cwd / fs view はこの値を使う。
+- no-workdir Worker は filesystem authority を `None` として表現し、Worker authority としての cwd fallback を持たない。
+- filesystem authority が無い Worker では `Read` / `Write` / `Edit` / `Glob` / `Grep` / `Bash` を登録しない。
+- 既存の `worker.cwd()` 参照箇所をすべて分類し、filesystem authority が必要な箇所は `WorkerFilesystemAuthority::Local` 経由に置き換え、workspace 情報が必要な箇所は `workspace_root`/cwd 依存から切り離す方向で明示的に扱う。
+- `workspace_root` はこのチケットでは全削除しなくてよいが、filesystem authority として使わない境界を明確にする。
+
+## 実装メモ
+
+想定する型の方向性:
+
+```rust
+enum WorkerFilesystemAuthority {
+    None,
+    Local(LocalWorkingDirectory),
+}
+
+struct LocalWorkingDirectory {
+    root: PathBuf,
+    cwd: PathBuf,
+}
+```
+
+Worker 構築時に `WorkerFilesystemAuthority` を必須入力として受け取り、既存の `cwd: PathBuf` / `worker.cwd()` 経路を削除する。no-workdir embedded Worker は `WorkerFilesystemAuthority::None` を渡す。通常 Worker / workdir あり embedded Worker / spawned child Worker は、既存の working directory 解決結果から `LocalWorkingDirectory { root, cwd }` を作って渡す。
+
+## 受け入れ条件
+
+- Worker が filesystem authority 有無を型で保持できる。
+- Worker struct から `cwd: PathBuf` field が削除され、`worker.cwd()` accessor も存在しない。
+- Worker の constructor / restore / embedded runtime spawn / child spawn 経路は `WorkerFilesystemAuthority` を明示的に受け渡す。
+- workdir あり Worker では、tools の default cwd が `LocalWorkingDirectory.cwd` に一致する。
+- workdir あり Worker では、authority root が `LocalWorkingDirectory.root` として保持され、cwd と root の意味が分かれている。
+- no-workdir Worker では core filesystem tools と Bash が model-visible tool surface に現れないことをテストで確認できる。
+- no-workdir Worker では `Read` / `Write` / `Edit` / `Glob` / `Grep` / `Bash` が実行経路上も構築されず、空 scope や実行時エラー頼りの制御になっていない。
+- no-workdir Worker 作成時に workspace root / process cwd / runtime cwd fallback が filesystem authority として使われない。
+- embedded no-workdir Worker の spawn 経路から `WorkerFilesystemAuthority::None` を指定できる。
+- 既存の `worker.cwd()` 利用箇所が残っていないことを grep または同等のテストで確認できる。
+- Ticket / memory / workflow / child spawn など、従来 cwd に依存していた箇所は `WorkerFilesystemAuthority::Local` 必須箇所と workspace context 箇所に分類され、no-workdir で local filesystem に触れない。
+- 既存の通常 Worker / workdir あり embedded Worker / spawned child Worker の動作が回帰しない。
+- `cargo test` と `nix build .#yoi` が通る。

.yoi/tickets/00001KX6Y2A9Q/resolution.md

@@ -0,0 +1,32 @@
+Worker filesystem authority の明示境界を実装・レビュー・merge・検証した。
+
+実装内容:
+- `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` を追加。
+- `LocalWorkingDirectory` は filesystem authority `root` と default `cwd` を分離して保持する。
+- Worker-level `cwd: PathBuf` field と `worker.cwd()` accessor を削除。
+- core filesystem/Bash tool registration は local filesystem authority がある場合だけ行うようにした。
+- No-workdir Worker では `Read` / `Write` / `Edit` / `Glob` / `Grep` / `Bash` を construct/register/model-visible にしない。
+- Embedded no-workdir Worker spawn は Runtime/process cwd fallback ではなく `WorkerFilesystemAuthority::None` を明示的に渡す。
+- Ticket / worker-spawn / peer-discovery など cwd 依存箇所は local filesystem authority 必須に整理し、workspace root fallback を authority として使わないようにした。
+- tests で no-workdir tool omission、no cwd fallback、local/materialized Worker の filesystem/Bash behavior を確認。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included explicit authority type, no Worker cwd field/accessor, filesystem/Bash registration gate, embedded Runtime authority construction, and tests。
+- Non-blocking note: workspace-context surfaces such as memory/MCP/resident prompt loading can still be backed by `workspace_root` when enabled; this is outside the focused core filesystem/Bash authority gate and may become follow-up if the invariant expands to “no local file reads of any kind”。
+
+Merge / validation:
+- Merge commit: `c29e9135 merge: worker filesystem authority`。
+- Final validation passed:
+  - `rg "worker\\.cwd\\(" crates || true`
+  - `rg "pub fn cwd\\(" crates/worker/src/worker.rs || true`
+  - `git diff --check`
+  - `cargo test -p worker --lib --tests`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-fs-authority-final-validation-1783723253.txt`

.yoi/tickets/00001KX6Y2A9Q/thread.md

@@ -0,0 +1,258 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T21:13:49Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: plan author: hare at: 2026-07-10T21:24:57Z -->
+
+## Plan
+
+整理結果:
+
+1. 00001KX6Y2A9Q WorkerFilesystemAuthority
+   - hard dependency なし。
+   - no-workdir を filesystem authority none として型で表現する基盤。
+
+2. 00001KX6WVNPD Embedded no-workdir Worker authority policy
+   - depends_on: 00001KX6Y2A9Q。
+   - UI/API の workdir 任意化と embedded no-workdir tool surface 制御を実装する。
+
+3. 00001KX6Y6ZEA WorkspaceBackend / workspace_id 分離
+   - depends_on: 00001KX6Y2A9Q。
+   - workspace_root path 依存を workspace_id + Runtime-injected WorkspaceClient へ移行する。
+   - embedded no-workdir MVP をブロックしない。
+
+Hard dependencies は WorkerFilesystemAuthority を共通前提に限定する。WorkspaceBackend 分離は embedded no-workdir policy の MVP には related だが depends_on にはしない。
+
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T21:46:21Z -->
+
+## Decision
+
+Clarification: `process_cwd` is not part of this design. The Worker-level `cwd: PathBuf` property and `worker.cwd()` accessor should be removed rather than kept as a legacy authority surface. Working directory exists only under `WorkerFilesystemAuthority::Local`; no-workdir uses `WorkerFilesystemAuthority::None`. Tool registration must be derived from that authority, not manifest override or cwd fallback.
+
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T21:49:37Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T21:49:37Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-10T21:51:00Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T21:51:29Z -->
+
+## Decision
+
+Routing decision: accept for implementation
+
+Evidence checked:
+- Ticket `00001KX6Y2A9Q` is `queued` and has a concrete implementation scope。
+- `TicketRelationQuery(00001KX6Y2A9Q)` shows incoming dependents (`00001KX6WVNPD`, `00001KX6Y6ZEA`) but no outgoing unresolved blockers for this Ticket。
+- `TicketOrchestrationPlanQuery(00001KX6Y2A9Q)` had no prior plan; accepted plan was recorded in this routing pass。
+- `TicketList(inprogress)` shows 0 inprogress Tickets。
+- Orchestrator worktree `/home/hare/Projects/yoi/.worktree/orchestration` is clean。
+
+Accepted plan:
+- Create dedicated implementation worktree `/home/hare/Projects/yoi/.worktree/00001KX6Y2A9Q-worker-filesystem-authority` from current orchestration branch。
+- Use branch `work/00001KX6Y2A9Q-worker-filesystem-authority`。
+- Route implementation to sibling Coder Pod, then external review to sibling Reviewer Pod。
+- Orchestrator retains merge, final validation, Ticket close, and child worktree/branch cleanup authority。
+
+Implementation focus:
+- Add explicit `WorkerFilesystemAuthority` with no-workdir `None` and local `Local(LocalWorkingDirectory)` representation。
+- Remove Worker-level `cwd: PathBuf` field and `worker.cwd()` accessor。
+- Gate core filesystem tools and Bash on `WorkerFilesystemAuthority::Local`; no-workdir Workers must not register those tools。
+- Update constructor / restore / embedded / child-spawn paths to pass filesystem authority explicitly。
+- Separate workspace context from filesystem authority; do not use workspace root / process cwd / runtime cwd fallback as no-workdir authority。
+- Add tests for no-workdir model-visible tool surface and execution construction behavior, plus grep/equivalent assurance that `worker.cwd()` usages are gone。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T21:51:33Z from: queued to: inprogress reason: accepted_for_implementation field: state -->
+
+## State changed
+
+Dashboard queue authorization was inspected, no blockers were found, and an accepted plan was recorded. Moving queued Ticket to inprogress before creating implementation worktree or spawning Pods.
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T22:31:16Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod `yoi-coder-00001KX6Y2A9Q-worker-fs-authority` completed implementation in `/home/hare/Projects/yoi/.worktree/00001KX6Y2A9Q-worker-filesystem-authority` on branch `work/00001KX6Y2A9Q-worker-filesystem-authority`。
+- Implementation commit: `b50b94612a1185dc5bdc935d83d63f9d6ace826b feat: add explicit worker filesystem authority`。
+- Orchestrator inspected the worktree status, branch log, commit stats, `git diff --check db3a7165..HEAD`, and grep checks for `worker.cwd()` / Worker `fn cwd`; worktree was clean, diff check passed, and no matches were found。
+
+Coder-reported implementation summary:
+- Added explicit `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` boundary。
+- Removed Worker-level `cwd: PathBuf` and `worker.cwd()` accessor。
+- Local Workers carry authority `root` and `cwd` separately。
+- No-workdir embedded Worker spawn passes `WorkerFilesystemAuthority::None` explicitly instead of falling back to runtime/process cwd。
+- Controller tool registration branches on local filesystem authority:
+  - Local Workers register `Read`, `Write`, `Edit`, `Glob`, `Grep`, `Bash` and get fs view/completions。
+  - No-workdir Workers do not construct/register filesystem or Bash tools。
+- Ticket / worker-spawn / peer-discovery cwd-dependent paths now require local filesystem authority instead of using workspace root as fallback。
+- Tests added/updated for no-workdir tool omission, no cwd fallback, and local/materialized Worker filesystem/Bash behavior。
+
+Coder-reported validation passed:
+- `cargo test -p worker --lib --tests`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `git diff --check`
+- `cargo run -p yoi -- ticket doctor`
+- `nix build .#yoi --no-link`
+- `rg "worker\\.cwd\\(" crates || true`: no matches。
+- `rg "pub fn cwd\\(" crates/worker/src/worker.rs || true`: no Worker cwd accessor remains。
+
+Not run by Coder:
+- `cd web/workspace && deno task check && deno task test` because web/API/types were not touched。
+
+Next action:
+- Route to external Reviewer Pod before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-10T22:40:35Z status: approve -->
+
+## Review: approve
+
+External review result: approve
+
+Evidence:
+- `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` and separate `root`/`cwd` are present in `crates/worker/src/worker.rs`; `Worker` now stores `filesystem_authority` plus separate `workspace_root`, with no `cwd: PathBuf` Worker field。
+- Core filesystem/Bash registration is gated on `worker.local_working_directory()` in `crates/worker/src/controller.rs:619-636`; no-local Workers return `(None, None)` and do not construct/register `Read`/`Write`/`Edit`/`Glob`/`Grep`/`Bash`。
+- Ticket and worker-spawn surfaces require local authority rather than falling back to `workspace_root` (`controller.rs:647-667`, `719-733`)。
+- Embedded runtime creates `WorkerFilesystemAuthority::Local(binding.root, binding.cwd)` only when a working directory binding exists, otherwise `WorkerFilesystemAuthority::None` (`crates/worker-runtime/src/worker_backend.rs:297-310`)。
+- Tests cover no-workdir omission and no cwd fallback via empty observed materialized cwds plus forbidden core tool names (`worker_backend.rs:1133-1201`), and materialized local Workers exposing core tools with materialized cwd (`worker_backend.rs:1203-1260`)。
+- Grep check found no `worker.cwd()` / Worker `fn cwd`; the only remaining `pub fn cwd` hit is `WorkingDirectory` binding API, not `Worker`。
+
+Blockers: none。
+
+Validation performed by reviewer:
+- Read-only ticket/diff/source/test inspection and grep checks。
+- Reviewer did not rerun cargo/nix tests; coder-reported validation covers the requested test/build set。
+
+Non-blocking note:
+- Workspace-context surfaces such as memory/MCP/resident prompt loading can still be backed by `workspace_root` when enabled; this was treated as outside this Ticket’s focused core filesystem/Bash authority gate, but may need follow-up if the intended invariant becomes “no local file reads of any kind” for no-workdir Workers。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-10T22:44:39Z -->
+
+## Implementation report
+
+Merge / final validation report:
+
+- Reviewer approved the implementation with no blockers。
+- Merged branch `work/00001KX6Y2A9Q-worker-filesystem-authority` into orchestration branch with merge commit `c29e9135 merge: worker filesystem authority`。
+- Final validation was rerun in `/home/hare/Projects/yoi/.worktree/orchestration` after merge。
+
+Validation passed:
+- `rg "worker\\.cwd\\(" crates || true`: no matches。
+- `rg "pub fn cwd\\(" crates/worker/src/worker.rs || true`: no Worker cwd accessor matches。
+- `git diff --check`
+- `cargo test -p worker --lib --tests`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check`
+- `cd web/workspace && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Validation log:
+- `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-fs-authority-final-validation-1783723253.txt`
+
+Reviewed/merged implementation commit:
+- `b50b9461 feat: add explicit worker filesystem authority`
+
+Non-blocking reviewer note:
+- Workspace-context surfaces such as memory/MCP/resident prompt loading can still be backed by `workspace_root` when enabled; this was treated as outside this Ticket’s focused core filesystem/Bash authority gate, but may be follow-up material if the intended invariant becomes “no local file reads of any kind” for no-workdir Workers。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-10T22:44:45Z from: inprogress to: done reason: implementation_validated field: state -->
+
+## State changed
+
+Implementation was reviewed, merged into orchestration branch, and final validation passed. Moving to done before closure.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T22:45:01Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T22:45:01Z status: closed -->
+
+## 完了
+
+Worker filesystem authority の明示境界を実装・レビュー・merge・検証した。
+
+実装内容:
+- `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` を追加。
+- `LocalWorkingDirectory` は filesystem authority `root` と default `cwd` を分離して保持する。
+- Worker-level `cwd: PathBuf` field と `worker.cwd()` accessor を削除。
+- core filesystem/Bash tool registration は local filesystem authority がある場合だけ行うようにした。
+- No-workdir Worker では `Read` / `Write` / `Edit` / `Glob` / `Grep` / `Bash` を construct/register/model-visible にしない。
+- Embedded no-workdir Worker spawn は Runtime/process cwd fallback ではなく `WorkerFilesystemAuthority::None` を明示的に渡す。
+- Ticket / worker-spawn / peer-discovery など cwd 依存箇所は local filesystem authority 必須に整理し、workspace root fallback を authority として使わないようにした。
+- tests で no-workdir tool omission、no cwd fallback、local/materialized Worker の filesystem/Bash behavior を確認。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included explicit authority type, no Worker cwd field/accessor, filesystem/Bash registration gate, embedded Runtime authority construction, and tests。
+- Non-blocking note: workspace-context surfaces such as memory/MCP/resident prompt loading can still be backed by `workspace_root` when enabled; this is outside the focused core filesystem/Bash authority gate and may become follow-up if the invariant expands to “no local file reads of any kind”。
+
+Merge / validation:
+- Merge commit: `c29e9135 merge: worker filesystem authority`。
+- Final validation passed:
+  - `rg "worker\\.cwd\\(" crates || true`
+  - `rg "pub fn cwd\\(" crates/worker/src/worker.rs || true`
+  - `git diff --check`
+  - `cargo test -p worker --lib --tests`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/worker-fs-authority-final-validation-1783723253.txt`
+
+---

.yoi/tickets/00001KX6Y6ZEA/artifacts/orchestration-plan.jsonl

@@ -0,0 +1,4 @@
+{"id":"orch-plan-20260710-220343-1","ticket_id":"00001KX6Y6ZEA","kind":"after","related_ticket":"00001KX6Y2A9Q","note":"Ticket has explicit typed `depends_on` relation to `00001KX6Y2A9Q`. The prerequisite WorkerFilesystemAuthority refactor is currently `inprogress` and establishes the filesystem-authority/workspace-boundary this Ticket builds on. Start only after the prerequisite is approved, merged, and closed or an explicit combined-work decision is made.","author":"orchestrator","at":"2026-07-10T22:03:43Z"}
+{"id":"orch-plan-20260710-220349-2","ticket_id":"00001KX6Y6ZEA","kind":"waiting_capacity_note","note":"Dashboard queue routing inspected. This Ticket is concrete but blocked by typed `depends_on` relation to `00001KX6Y2A9Q`, which is currently inprogress. Starting now would conflict with the Worker struct/context/constructor refactor and filesystem-authority boundary. Leave queued and re-route after prerequisite merge/close.","author":"orchestrator","at":"2026-07-10T22:03:49Z"}
+{"id":"orch-plan-20260710-233841-3","ticket_id":"00001KX6Y6ZEA","kind":"waiting_capacity_note","note":"Queue review resumed after prerequisite `00001KX6Y2A9Q` closed. `00001KX6WVNPD` was accepted first because it is the smaller embedded no-workdir policy MVP and explicitly does not require WorkspaceBackend migration. This Ticket remains queued due migration-boundary/conflict risk: it removes Worker `workspace_root` and introduces WorkspaceBackend/WorkspaceClient surfaces in the same Worker context/constructor/runtime code that `00001KX6WVNPD` is now changing. Re-route after `00001KX6WVNPD` is reviewed/merged/closed, unless a human explicitly requests a combined branch.","author":"orchestrator","at":"2026-07-10T23:38:41Z"}
+{"id":"orch-plan-20260711-001433-4","ticket_id":"00001KX6Y6ZEA","kind":"accepted_plan","accepted_plan":{"summary":"Replace Worker `workspace_root: PathBuf` identity with path-free workspace identity and Runtime/host-owned WorkspaceBackend/WorkspaceClient boundary. Preserve filesystem authority exclusively under `WorkerFilesystemAuthority::Local`, allow workspace_id/client without local filesystem authority, and migrate workspace-aware Worker references away from local workspace paths where in scope.","branch":"work/00001KX6Y6ZEA-workspace-backend","worktree":"/home/hare/Projects/yoi/.worktree/00001KX6Y6ZEA-workspace-backend","role_plan":"Orchestrator accepts queued Ticket after prerequisites `00001KX6Y2A9Q` and related `00001KX6WVNPD` were approved, merged, validated, and closed. Use sibling Coder for implementation in a dedicated worktree, then sibling Reviewer for read-only review. Orchestrator retains merge/final-validation/close/worktree cleanup authority. Per user instruction, do not call StopPod during cleanup."},"author":"orchestrator","at":"2026-07-11T00:14:33Z"}

.yoi/tickets/00001KX6Y6ZEA/artifacts/relations.json

@@ -0,0 +1,29 @@
+{
+  "version": 1,
+  "relations": [
+    {
+      "ticket_id": "00001KX6Y6ZEA",
+      "kind": "depends_on",
+      "target": "00001KX6Y2A9Q",
+      "note": "Workspace identity/backend refactor should build on the explicit filesystem-authority boundary.",
+      "author": "yoi ticket",
+      "at": "2026-07-10T21:24:10Z"
+    },
+    {
+      "ticket_id": "00001KX6Y6ZEA",
+      "kind": "related",
+      "target": "00001KX6WVNPD",
+      "note": "Embedded no-workdir Workers need workspace API access without local filesystem authority.",
+      "author": "yoi ticket",
+      "at": "2026-07-10T21:16:50Z"
+    },
+    {
+      "ticket_id": "00001KX6Y6ZEA",
+      "kind": "related",
+      "target": "00001KX6Y2A9Q",
+      "note": "WorkspaceBackend separates workspace identity/API access from WorkerFilesystemAuthority local filesystem authority.",
+      "author": "yoi ticket",
+      "at": "2026-07-10T21:16:50Z"
+    }
+  ]
+}

.yoi/tickets/00001KX6Y6ZEA/item.md

@@ -0,0 +1,85 @@
+---
+title: 'Replace Worker workspace_root path with WorkspaceBackend'
+state: 'closed'
+priority: 'P1'
+created_at: '2026-07-10T21:16:22Z'
+updated_at: '2026-07-11T01:09:59Z'
+assignee: null
+queued_by: 'workspace-panel'
+queued_at: '2026-07-10T22:03:27Z'
+---
+
+## 背景
+
+Worker 実装は現在 `workspace_root: PathBuf` を持ち、project records / memory / workflow / Ticket config / Profile context / child spawn inheritance / default scope など複数の意味に使っている。しかし workspace identity と local filesystem authority が path で混ざっており、embedded no-workdir Worker のように「workspace 情報には API 経由でアクセスできるが local filesystem には触れない」状態を自然に表現できない。
+
+workspace は local path ではなく Backend/API 側の identity として扱うべきである。Worker が durable/context identity として持つのは `Option<WorkspaceId>` に留め、`WorkspaceBackendRef` や backend adapter/client の materialization は Runtime/host 側が持つ。Worker は Runtime から注入された narrow `WorkspaceClient` / handle を通じて workspace-aware API に request する。local filesystem authority は別チケットの `WorkerFilesystemAuthority` に分離する。
+
+## 要件
+
+- Worker の workspace identity/context を `workspace_root: PathBuf` から `workspace_id: Option<WorkspaceId>` へ移行する。
+- Worker struct から `workspace_root: PathBuf` field を削除し、Worker の workspace identity として local path を保持しない。
+- `WorkspaceBackendRef` は Worker ではなく Runtime/host 側が保持し、backend endpoint / auth / adapter selection / capability discovery を解決する。
+- Runtime は `WorkspaceBackendRef` から scoped `WorkspaceClient` / handle を materialize し、Worker に注入する。
+- Worker は `WorkspaceBackendRef` や secret を自分で解決せず、注入された narrow client/handle を通じて workspace-aware API に request する。
+- `workspace_id` と `filesystem` を分離し、workspace id/client が存在しても local filesystem authority があるとは扱わない。
+- workspace-aware 機能（Ticket / memory / workflow / project records / workspace metadata）は Backend API 経由で取得する。
+- local path が必要な処理は Runtime/host の backend adapter、または `WorkerFilesystemAuthority::Local` の内側に閉じ込め、Worker workspace identity として露出しない。
+
+## capability の扱い
+
+Capability は最小実装では必須ではない。まずは Runtime/host 側が `workspace_id` から backend binding を解決し、backend 側の実 enforcement で成立する。
+
+ただし capability は次の目的で有用である。
+
+- Worker に登録する workspace-aware tools の表示・非表示を決める。
+- read-only / read-write / unavailable の UX とエラーを fail-closed にする。
+- Backend/API version 差分や remote backend の未対応機能を明示する。
+- prompt/tool schema surface を不要に広げない。
+
+一方で capability は client-declared authority にしてはいけない。最終的な権限判定は必ず backend が enforcement し、Worker 側 capability は advertised/discovered contract または UI/tool registration hint として扱う。
+
+## 想定する型の方向性
+
+```rust
+// Worker が durable/context identity として持つもの。
+struct WorkerContext {
+    workspace_id: Option<WorkspaceId>,
+    workspace_client: Option<WorkspaceClientHandle>,
+    filesystem: WorkerFilesystemAuthority,
+}
+
+// Runtime/host 側が保持・解決する backend binding source。
+enum WorkspaceBackendRef {
+    None,
+    Rest {
+        base_url: Url,
+        workspace_id: WorkspaceId,
+        // Optional after minimal implementation:
+        // auth: Option<SecretRef>,
+    },
+}
+
+// Runtime が Worker 起動時に materialize して注入する narrow client。
+trait WorkspaceClient {
+    // ticket / memory / workflow / project-record API を必要に応じて提供する。
+}
+```
+
+`workspace_id` は Worker の durable identity であり、接続能力そのものではない。`WorkspaceBackendRef` / endpoint / secret / adapter は Runtime/host 側の責務とする。
+
+## 受け入れ条件
+
+- Worker context に workspace identity を path ではない `Option<WorkspaceId>` として保持できる。
+- Worker struct に `workspace_root: PathBuf` field が存在しない。
+- Worker の workspace identity accessor が local path を返さない。
+- Runtime/host が `WorkspaceBackendRef` を保持・解決し、Worker に scoped `WorkspaceClient` / handle を注入できる。
+- `workspace_id = None` と `filesystem = None` の会話専用 Worker を表現できる。
+- `workspace_id = Some(...)` かつ `filesystem = None` の、workspace API は使えるが local filesystem は使えない Worker を表現できる。
+- workspace-aware tools は注入された `WorkspaceClient` / handle を通して backend/API にアクセスし、local workspace path を authority として要求しない。
+- Worker が `WorkspaceBackendRef` / REST endpoint / SecretRef を直接解決しない境界が明確である。
+- Ticket / memory / workflow / project records / workspace metadata の Worker 側参照が `workspace_id` + `WorkspaceClient` 経由に移行している。
+- local path backend が必要な場合でも、path は Runtime/host backend adapter 内または `WorkerFilesystemAuthority::Local` 内に閉じている。
+- capability を導入する場合は backend-enforced authority ではなく tool registration / UX / discovery hint として扱われる。
+- `WorkerFilesystemAuthority` チケットとの境界が明確で、filesystem authority と workspace identity/client が混同されない。
+- `cargo test` と `nix build .#yoi` が通る。

.yoi/tickets/00001KX6Y6ZEA/resolution.md

@@ -0,0 +1,32 @@
+Worker workspace identity / WorkspaceBackend boundary を実装・レビュー・merge・検証した。
+
+実装内容:
+- Worker-held `workspace_root: PathBuf` identity を削除し、path-free `WorkerWorkspaceContext`, `WorkspaceId`, `WorkspaceClient` に置き換えた。
+- Worker は `workspace_context` と `filesystem_authority` を分離して保持し、local filesystem authority は `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` に閉じ込めた。
+- Worker constructors / restore / spawn paths を workspace context と filesystem authority の分離形に更新した。
+- Runtime 側に `RuntimeWorkspaceBackendRef` を追加し、host-owned local backend binding から narrow Worker workspace context を注入するようにした。
+- `workspace_id/client` が存在しても local filesystem authority を意味しないようにした。
+- no-filesystem Workers では memory/workflow local layouts を workspace path fallback せず unavailable/fail-closed にした。
+- legacy metadata `workspace_root` は compatibility/local filesystem hint として、`WorkerFilesystemAuthority::Local` 由来の場合だけ扱うようにした。
+- tests で path-free workspace identity/client と local cwd/root の分離、filesystem authority なしの workspace client、local path-returning Worker workspace accessor 不在、constructor/restore/spawn behavior を確認した。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included path-free Worker context, no Worker `workspace_root()` accessor, Runtime/host backend materialization boundary, workspace-client-without-filesystem tests, fail-closed local workspace features, and legacy metadata confinement。
+- Non-blocking note: `set_active_with_workspace_context` preserves existing metadata fields when passed `None`; future no-workspace reuse of an existing Pod name may want explicit clearing semantics to avoid stale UI hints。
+
+Merge / validation:
+- Merge commit: `391f11fc merge: workspace backend worker context`。
+- Final validation passed:
+  - `rg -n 'workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true`
+  - `rg -n 'worker\\.workspace_root|pub fn workspace_root|fn workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true`
+  - `git diff --check`
+  - `cargo test -p worker --lib --tests`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/workspace-backend-final-validation-1783732052.txt`

.yoi/tickets/00001KX6Y6ZEA/thread.md

@@ -0,0 +1,395 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T21:16:22Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T21:23:27Z -->
+
+## Decision
+
+Worker 側が持つ workspace 情報は `Option<WorkspaceId>` に留める。`WorkspaceBackendRef`、endpoint、auth/SecretRef、adapter/client の materialization は Runtime/host 側の責務とし、Worker は Runtime から注入された scoped `WorkspaceClient` / handle 経由で workspace-aware API に request する。
+
+
+---
+
+<!-- event: plan author: hare at: 2026-07-10T21:24:57Z -->
+
+## Plan
+
+整理結果:
+
+1. 00001KX6Y2A9Q WorkerFilesystemAuthority
+   - hard dependency なし。
+   - no-workdir を filesystem authority none として型で表現する基盤。
+
+2. 00001KX6WVNPD Embedded no-workdir Worker authority policy
+   - depends_on: 00001KX6Y2A9Q。
+   - UI/API の workdir 任意化と embedded no-workdir tool surface 制御を実装する。
+
+3. 00001KX6Y6ZEA WorkspaceBackend / workspace_id 分離
+   - depends_on: 00001KX6Y2A9Q。
+   - workspace_root path 依存を workspace_id + Runtime-injected WorkspaceClient へ移行する。
+   - embedded no-workdir MVP をブロックしない。
+
+Hard dependencies は WorkerFilesystemAuthority を共通前提に限定する。WorkspaceBackend 分離は embedded no-workdir policy の MVP には related だが depends_on にはしない。
+
+
+---
+
+<!-- event: decision author: hare at: 2026-07-10T22:00:16Z -->
+
+## Decision
+
+Clarification: this ticket should remove Worker-level `workspace_root: PathBuf`, not leave it as a staged authority surface. Local paths may remain only inside Runtime/host backend adapters or `WorkerFilesystemAuthority::Local`; Worker workspace identity is `Option<WorkspaceId>` and workspace operations go through an injected `WorkspaceClient` / handle.
+
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T22:01:46Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:01:46Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: workspace-panel at: 2026-07-10T22:03:27Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `workspace-panel` が queued にしました。
+
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T22:03:57Z -->
+
+## Decision
+
+Routing decision: blocked_by_dependency
+
+Reason:
+- Dashboard queue authorization was inspected, but this Ticket has an explicit typed `depends_on` relation to `00001KX6Y2A9Q`。
+- `00001KX6Y2A9Q` is currently `inprogress` and is refactoring Worker filesystem authority / cwd removal / no-workdir boundaries。
+- This Ticket replaces Worker `workspace_root` path usage with `WorkspaceBackend`, which builds on the same Worker struct/context/constructor boundary。
+- Starting now would likely conflict with the active filesystem-authority refactor and obscure review boundaries。
+- Therefore this routing pass leaves the Ticket `queued` and does not record `queued -> inprogress`, create a worktree, or spawn role Pods。
+
+Evidence checked:
+- Ticket body / recent thread / artifacts。
+- `TicketRelationQuery(00001KX6Y6ZEA)`: includes dependency on `00001KX6Y2A9Q`。
+- `TicketList(inprogress)`: `00001KX6Y2A9Q` is the active inprogress Ticket。
+- Orchestrator worktree status: clean。
+
+Next action:
+- Re-route this Ticket after `00001KX6Y2A9Q` is approved, merged, validated, and closed。
+- Escalate only if a human explicitly requests combined implementation in the same branch/worktree。
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-10T23:38:54Z -->
+
+## Decision
+
+Routing decision: hold_queued_due_migration_boundary_conflict
+
+Reason:
+- 前提 `00001KX6Y2A9Q` は closed になったため dependency 自体は解消済み。
+- ただし、この routing pass では `00001KX6WVNPD` を先に受理した。
+- `00001KX6WVNPD` は embedded no-workdir policy MVP であり、WorkspaceBackend migration を必要としない小さい境界変更である。
+- この Ticket は Worker `workspace_root` path を `WorkspaceBackend` に置き換える refactor で、Worker struct/context/constructor/runtime spawn/UI API 周辺に触れる。
+- `00001KX6WVNPD` も同じ Worker create / embedded runtime / no-workdir authority surface に触るため、並行 branch で進めると conflict と review boundary 混濁の可能性が高い。
+- よって、この Ticket は `queued` のまま保持し、`00001KX6WVNPD` が reviewed/merged/closed になってから再 routing する。
+
+Evidence checked:
+- Ticket body / thread / relations / orchestration plan。
+- `TicketRelationQuery(00001KX6Y6ZEA)`: prerequisite `00001KX6Y2A9Q` は closed。
+- `TicketList(inprogress)`: routing pass 中に `00001KX6WVNPD` を accepted for implementation。
+- Orchestrator worktree status: clean。
+
+Next action:
+- `00001KX6WVNPD` の implementation/review/merge/close を完了後、この Ticket を再 routing する。
+- 人間が combined branch を明示希望する場合のみ、この待機判断を再検討する。
+
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-11T00:15:05Z -->
+
+## Decision
+
+Routing decision: implementation_ready
+
+Reason:
+- 前提 `00001KX6Y2A9Q` は closed 済みで、`WorkerFilesystemAuthority::{None, Local}` と cwd 除去境界が merge 済み。
+- 関連 `00001KX6WVNPD` も closed 済みで、embedded no-workdir Worker policy / UI/API optionality が merge 済み。
+- この Ticket の typed `depends_on 00001KX6Y2A9Q` は解消済み。`00001KX6WVNPD` は `related` であり blocker ではなく、直前の conflict/migration-boundary waiting note もその Ticket の merge/close により解消済み。
+- `TicketList(inprogress)` は 0 件で、Orchestrator worktree は clean。
+- Ticket body/thread に Worker-level local path identity をなくし、Runtime/host-owned backend/client 境界へ移す binding decision が記録されている。
+
+Evidence checked:
+- Ticket body / thread / relations / orchestration plan。
+- Closed prerequisite `00001KX6Y2A9Q` and closed related policy Ticket `00001KX6WVNPD`。
+- `TicketRelationQuery(00001KX6Y6ZEA)`: outgoing `depends_on 00001KX6Y2A9Q` is closed; other relations are `related` only。
+- `TicketOrchestrationPlanQuery(00001KX6Y6ZEA)`: prior waiting notes were dependency/conflict notes now resolved by prerequisite and related Ticket closure。
+- `TicketList(inprogress)`: 0 件。
+- Orchestrator worktree status: clean。
+
+IntentPacket:
+
+Intent:
+- Worker の workspace identity/context を local path (`workspace_root: PathBuf`) から path-free identity (`Option<WorkspaceId>`) と Runtime/host injected workspace client/handle 境界へ移行する。
+- Filesystem authority は `WorkerFilesystemAuthority` に閉じ込め、workspace identity/client が local filesystem authority を意味しないようにする。
+
+Binding decisions / invariants:
+- Worker struct は durable/context identity として local workspace path を保持しない。
+- Worker-level `workspace_root: PathBuf` field と local path-returning workspace identity accessor を削除する。
+- Worker が `WorkspaceBackendRef` / endpoint / auth / SecretRef / adapter を直接解決しない。
+- Runtime/host 側が backend binding source を保持・解決し、Worker には narrow `WorkspaceClient` / handle を注入する。
+- `workspace_id = Some(...)` かつ `filesystem = None` を表現できること。
+- `workspace_id = None` かつ `filesystem = None` の会話専用 Worker も表現できること。
+- local path が必要な処理は Runtime/host backend adapter または `WorkerFilesystemAuthority::Local` の内側に閉じ込める。
+- capability を導入する場合でも authority source にせず、tool registration / UX / discovery hint として扱い、enforcement は backend 側に置く。
+- `WorkerFilesystemAuthority` / embedded no-workdir policy を崩さない。workspace root fallback や process cwd fallback を filesystem authority として復活させない。
+
+Requirements / acceptance criteria:
+- Worker context に `workspace_id: Option<WorkspaceId>` equivalent と injected workspace client/handle equivalent を持てる。
+- Worker struct に `workspace_root: PathBuf` が存在しない。
+- workspace-aware features（Ticket / memory / workflow / project records / workspace metadata）は local workspace path authority ではなく injected workspace client/handle 経由へ移行する、または移行が必要な箇所を fail-closed / unavailable diagnostic にする。
+- Runtime/host が `WorkspaceBackendRef` equivalent を保持・解決し、Worker launch/restore/embedded/spawn path へ安全に materialize できる。
+- No-workdir Worker は workspace API access と local filesystem authority の有無を独立に表現できる。
+- Existing local/workdir Workers still work with `WorkerFilesystemAuthority::Local` and local-path-only operations confined there。
+- Tests cover no local workspace path identity on Worker, workspace_id/client injection shape, no filesystem authority mixing, and representative workspace-aware API/tool behavior。
+
+Implementation latitude:
+- `WorkspaceId`, `WorkspaceBackendRef`, `WorkspaceClient` / handle の exact placement/name/API surface は existing crate boundaries に合わせてよい。
+- Minimal client/handle can support only currently needed workspace-aware operations if broad API migration would exceed Ticket scope, but it must not leave Worker-local path authority as the active path。
+- If a currently path-backed feature cannot be migrated safely in this Ticket, prefer explicit unavailable/fail-closed diagnostic with follow-up note rather than hidden path fallback。
+- Capability discovery is optional unless needed for safe tool registration/UX。
+
+Escalate if:
+- Removing `workspace_root` from Worker requires changing product semantics for memory/Ticket/workflow availability beyond local refactor。
+- A workspace-aware feature cannot be migrated without introducing a broad external backend/protocol design not captured by this Ticket。
+- You need to reintroduce Worker-held local workspace path as identity/authority。
+- You need to weaken no-workdir fs/Bash tool omission or `WorkerFilesystemAuthority` invariants。
+- Public API/serialization migration requires incompatible durable-state handling beyond existing restore/test coverage。
+
+Validation:
+- `rg "workspace_root" crates/worker crates/worker-runtime crates/yoi-pod-client crates/yoi-workspace-server` with expected remaining hits only outside Worker identity/authority or documented adapter boundaries。
+- `rg "worker\.workspace_root|workspace_root\(\)" crates` or equivalent showing Worker local path accessor removed。
+- `git diff --check`
+- `cargo test -p worker --lib --tests`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check && deno task test` if API/types/UI are touched。
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Current code map / likely touch points:
+- `crates/worker/src/worker.rs` for Worker context fields and accessors。
+- `crates/worker/src/controller.rs` for workspace-aware tool/resource setup currently tied to workspace path。
+- `crates/worker-runtime/src/worker_backend.rs` for Runtime/embedded/restore construction and backend binding materialization。
+- workspace-server/client crates if backend/client DTOs or Worker launch summaries expose workspace identity。
+- tests around no-workdir Workers, restore, child spawn, Ticket/memory/workflow availability。
+
+Critical risks / reviewer focus:
+- Hidden local path authority retained in Worker under a renamed field/accessor。
+- Workspace identity/client being treated as filesystem authority。
+- WorkspaceBackendRef/endpoint/secret leaking into Worker-owned state。
+- Breaking local/workdir Workers or child spawn/restore while removing path identity。
+- Regressing embedded no-workdir policy or filesystem/Bash tool omission。
+- Over-broad migration that invents a large remote-workspace protocol instead of the minimal safe boundary needed here。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-11T00:15:11Z from: queued to: inprogress reason: accepted_for_implementation field: state -->
+
+## State changed
+
+Prerequisite and prior conflict/migration-boundary Ticket are now closed. This Ticket is accepted for implementation before creating a worktree or spawning role Pods.
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-11T00:59:55Z -->
+
+## Implementation report
+
+Implementation progress report:
+
+- Coder Pod `yoi-coder-00001KX6Y6ZEA-workspace-backend` completed implementation in `/home/hare/Projects/yoi/.worktree/00001KX6Y6ZEA-workspace-backend` on branch `work/00001KX6Y6ZEA-workspace-backend`。
+- Implementation commit: `142b60e1b3ca refactor: separate worker workspace identity`。
+- Orchestrator inspected worktree status, branch log, commit stats, `git diff --check 74b07bd7..HEAD`, and workspace-root accessor grep. Worktree was clean and diff check passed。
+
+Implementation summary:
+- Replaced Worker-held `workspace_root: PathBuf` identity with path-free `WorkerWorkspaceContext`, `WorkspaceId`, and `WorkspaceClient`。
+- Kept local filesystem authority under `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}`。
+- Updated Worker constructors / restore / spawn paths to receive workspace context separately from filesystem authority。
+- Added runtime-side `RuntimeWorkspaceBackendRef` as host-owned local backend binding that injects narrow Worker workspace context。
+- No-filesystem Workers keep memory/workflow local layouts unavailable/fail-closed rather than falling back to workspace paths。
+- Preserved legacy metadata `workspace_root` only as a local filesystem hint derived from `WorkerFilesystemAuthority::Local`, not as Worker identity。
+- Updated tests for path-free workspace identity/client separation from local tool cwd/root, workspace client without filesystem authority, no local path-returning Worker workspace accessor, and constructor usage。
+
+Files touched:
+- `crates/worker/src/worker.rs`
+- `crates/worker/src/controller.rs`
+- `crates/worker/src/entrypoint.rs`
+- `crates/worker/src/lib.rs`
+- `crates/worker/src/discovery.rs`
+- `crates/worker/src/ticket_event_notify.rs`
+- `crates/worker/tests/*`
+- `crates/worker-runtime/src/worker_backend.rs`
+- `crates/worker-runtime/Cargo.toml`
+- `crates/session-store/src/worker_metadata.rs`
+- `Cargo.lock`
+- `package.nix`
+
+Coder-reported validation passed:
+- `rg -n "workspace_root" crates/worker crates/worker-runtime crates/client crates/workspace-server` with remaining hits as legacy metadata/local filesystem adapter or host/runtime local backend boundaries plus tests。
+- `rg -n "worker\\.workspace_root|pub fn workspace_root|fn workspace_root" crates/worker crates/worker-runtime crates/client crates/workspace-server || true`; no Worker `workspace_root()` accessor hits. Orchestrator grep observed an unrelated `crates/workspace-server/src/records.rs` project-record accessor hit outside Worker identity。
+- `git diff --check`
+- `cargo test -p worker --lib --tests`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Not run by Coder:
+- `cd web/workspace && deno task check && deno task test` because web/API/types were not touched。
+
+Next action:
+- Route to external Reviewer Pod before merge/close decisions。
+
+---
+
+<!-- event: review author: reviewer at: 2026-07-11T01:07:06Z status: approve -->
+
+## Review: approve
+
+External review result: approve
+
+Evidence:
+- Worker identity is path-free: `WorkerWorkspaceContext` carries `Option<WorkspaceId>` plus narrow `WorkspaceClient`/unavailable state, while `Worker` stores `workspace_context` and `filesystem_authority` instead of a `workspace_root: PathBuf` (`crates/worker/src/worker.rs:61-109`, `384-405`)。
+- No `worker.workspace_root()` / local path-returning workspace accessor remains; local paths are exposed only through `WorkerFilesystemAuthority::Local` helpers such as `local_working_directory()` (`worker.rs:741-840`)。
+- Runtime/host boundary now resolves local workspace backend context before constructing Workers (`crates/worker-runtime/src/worker_backend.rs:321-390`), and Worker construction accepts injected workspace context + filesystem authority (`worker.rs:4219-4260`)。
+- Workspace/client without filesystem and no-workspace/no-filesystem Workers are represented and covered by tests (`worker.rs:5441-5530`; worker-runtime tests around `901+`)。
+- Workspace-aware local features fail closed when no local filesystem authority is available; Ticket/memory/workflow/spawn-dependent surfaces require `filesystem_authority.local()` and otherwise return unavailable errors rather than cwd/root fallback (`crates/worker/src/controller.rs:630-672`, `709-779`)。
+- Legacy `workspace_root` metadata is written only as a compatibility/local hint from local filesystem authority, not as Worker identity (`worker.rs:4604-4621`; `session-store/src/worker_metadata.rs`)。
+
+Validation performed:
+- `git diff --check 142b60e1^ 142b60e1`
+- Focused grep for forbidden `workspace_root()` accessor: no matches。
+- Focused tests:
+  - `cargo test -p worker spawned_context_tests --lib`
+  - `cargo test -p worker-runtime worker_spawn_receives_materialized_workspace_cwd_instead_of_source_repo --features ws-server,fs-store`
+  - `cargo test -p worker-runtime adapter_dispatches_user_input_through_worker_run_lifecycle --features ws-server,fs-store`
+
+Blockers: none。
+
+Non-blocking notes:
+- Remaining `workspace_root` hits are local runtime/entrypoint/spawn-tool adapter, legacy metadata, or test contexts; reviewer did not find Worker identity/accessor use。
+- `set_active_with_workspace_context` preserves existing metadata fields when passed `None`; acceptable for this Ticket as compatibility metadata, but future no-workspace reuse of an existing Pod name may want explicit clearing semantics to avoid stale UI hints。
+
+---
+
+<!-- event: implementation_report author: orchestrator at: 2026-07-11T01:09:39Z -->
+
+## Implementation report
+
+Merge / final validation report:
+
+- Reviewer approved the implementation with no blockers。
+- Merged branch `work/00001KX6Y6ZEA-workspace-backend` into orchestration branch with merge commit `391f11fc merge: workspace backend worker context`。
+- Final validation was rerun in `/home/hare/Projects/yoi/.worktree/orchestration` after merge。
+
+Validation passed:
+- `rg -n 'workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true` with remaining hits limited to legacy metadata/local adapter/test contexts。
+- `rg -n 'worker\\.workspace_root|pub fn workspace_root|fn workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true`; no Worker identity/accessor hits were found. The expected unrelated workspace-server project-record accessor remains outside Worker identity。
+- `git diff --check`
+- `cargo test -p worker --lib --tests`
+- `cargo test -p worker-runtime --features ws-server,fs-store`
+- `cargo test -p yoi-workspace-server --lib`
+- `cargo check -p yoi`
+- `cd web/workspace && deno task check`
+- `cd web/workspace && deno task test`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Validation log:
+- `/run/user/1000/yoi/yoi-orchestrator/bash-output/workspace-backend-final-validation-1783732052.txt`
+
+Reviewed/merged implementation commit:
+- `142b60e1 refactor: separate worker workspace identity`
+
+Non-blocking reviewer note:
+- `set_active_with_workspace_context` preserves existing metadata fields when passed `None`; acceptable for this Ticket as compatibility metadata, but future no-workspace reuse of an existing Pod name may want explicit clearing semantics to avoid stale UI hints。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-11T01:09:43Z from: inprogress to: done reason: implementation_validated field: state -->
+
+## State changed
+
+Implementation was reviewed, merged into orchestration branch, and final validation passed. Moving to done before closure.
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-11T01:09:59Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-11T01:09:59Z status: closed -->
+
+## 完了
+
+Worker workspace identity / WorkspaceBackend boundary を実装・レビュー・merge・検証した。
+
+実装内容:
+- Worker-held `workspace_root: PathBuf` identity を削除し、path-free `WorkerWorkspaceContext`, `WorkspaceId`, `WorkspaceClient` に置き換えた。
+- Worker は `workspace_context` と `filesystem_authority` を分離して保持し、local filesystem authority は `WorkerFilesystemAuthority::{None, Local(LocalWorkingDirectory)}` に閉じ込めた。
+- Worker constructors / restore / spawn paths を workspace context と filesystem authority の分離形に更新した。
+- Runtime 側に `RuntimeWorkspaceBackendRef` を追加し、host-owned local backend binding から narrow Worker workspace context を注入するようにした。
+- `workspace_id/client` が存在しても local filesystem authority を意味しないようにした。
+- no-filesystem Workers では memory/workflow local layouts を workspace path fallback せず unavailable/fail-closed にした。
+- legacy metadata `workspace_root` は compatibility/local filesystem hint として、`WorkerFilesystemAuthority::Local` 由来の場合だけ扱うようにした。
+- tests で path-free workspace identity/client と local cwd/root の分離、filesystem authority なしの workspace client、local path-returning Worker workspace accessor 不在、constructor/restore/spawn behavior を確認した。
+
+Review:
+- Reviewer approved with no blockers。
+- Evidence included path-free Worker context, no Worker `workspace_root()` accessor, Runtime/host backend materialization boundary, workspace-client-without-filesystem tests, fail-closed local workspace features, and legacy metadata confinement。
+- Non-blocking note: `set_active_with_workspace_context` preserves existing metadata fields when passed `None`; future no-workspace reuse of an existing Pod name may want explicit clearing semantics to avoid stale UI hints。
+
+Merge / validation:
+- Merge commit: `391f11fc merge: workspace backend worker context`。
+- Final validation passed:
+  - `rg -n 'workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true`
+  - `rg -n 'worker\\.workspace_root|pub fn workspace_root|fn workspace_root' crates/worker crates/worker-runtime crates/client crates/workspace-server || true`
+  - `git diff --check`
+  - `cargo test -p worker --lib --tests`
+  - `cargo test -p worker-runtime --features ws-server,fs-store`
+  - `cargo test -p yoi-workspace-server --lib`
+  - `cargo check -p yoi`
+  - `cd web/workspace && deno task check`
+  - `cd web/workspace && deno task test`
+  - `yoi ticket doctor`
+  - `nix build .#yoi --no-link`
+- Validation log: `/run/user/1000/yoi/yoi-orchestrator/bash-output/workspace-backend-final-validation-1783732052.txt`
+
+---

.yoi/tickets/00001KX7179VS/item.md

@@ -0,0 +1,31 @@
+---
+title: 'Improve workspace console tool call rendering'
+state: 'closed'
+created_at: '2026-07-10T22:08:58Z'
+updated_at: '2026-07-10T22:28:24Z'
+assignee: null
+queued_by: 'yoi ticket'
+queued_at: '2026-07-10T22:09:21Z'
+---
+
+## 背景
+
+Workspace frontend の Worker Console では、tool call と tool result が別々の行として表示され、streaming 中も `tool call · Bash` / `tool call done · Bash` / `tool result` のように分断されて見える。TUI では tool call を `Call` ブロックとしてまとめ、状態更新と結果を同一ブロック内で表示しているため、Frontend Console も同じ情報設計に寄せる。
+
+## 要件
+
+- Workspace Console の tool call 表示を、call 単位の1ブロックに集約する。
+- streaming / done / failed などの状態変化は同じブロック内で更新して見せる。
+- tool result は対応する tool call ブロックに取り込み、独立した `tool result` 行として重複表示しない。
+- TUI の汎用 tool 表示と、Bash / Read / Write / Edit / Glob / Grep / WebFetch / WebSearch 等の専用表示方針を確認し、Frontend 側でも少なくとも Bash など主要 tool の要約表示を揃える。
+- call id が取れない・対応する call が見つからない result は、安全な fallback 表示を維持する。
+
+## 受け入れ条件
+
+- Console で `Bash { command: "pwd" }` の tool call と result が1つの Call ブロックとして表示される。
+- streaming 中の tool call は同じブロックで `streaming` 状態を表示し、完了時に同じブロックが完了状態へ更新される。
+- tool result の content が対応する Call ブロック内に表示される。
+- 汎用 tool では tool 名、引数、状態、結果を同一ブロック内で確認できる。
+- Bash など主要 tool では TUI と同じ方針の専用 summary が表示される。
+- Console model の unit test で tool call/result の集約を確認する。
+- `cd web/workspace && deno task check` と `cd web/workspace && deno task test` が通る。

.yoi/tickets/00001KX7179VS/resolution.md

@@ -0,0 +1 @@
+Implemented frontend Workspace Console tool call grouping. Tool call start/arg/done/result events now project into a single `Call · <tool>` block keyed by call id, with streaming state updates and folded result output. Added generic and TUI-aligned specialized summaries for core tools, including Bash command/output rendering. Validated with frontend check/test, diff check, and Nix package build.

.yoi/tickets/00001KX7179VS/thread.md

@@ -0,0 +1,105 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T22:08:58Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T22:09:20Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:09:20Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:09:21Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `yoi ticket` が queued にしました。
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:09:21Z from: queued to: inprogress reason: cli_state field: state -->
+
+## State changed
+
+State changed to `inprogress`.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-10T22:16:58Z -->
+
+## Implementation report
+
+Implemented Workspace Console tool-call grouping.
+
+- Tool lifecycle events now update one `Call · <tool>` console line keyed by call id.
+- Args streaming, call completion, and tool result output are folded into that line instead of producing separate `tool call` / `tool call done` / `tool result` rows.
+- Added generic tool rendering plus TUI-aligned special summaries for Read, Write, Edit, Glob, and Grep; Bash renders the command and output in the same Call block.
+- In-flight tool snapshots now render as Call blocks as well.
+- Added model tests for completed Bash call aggregation and streaming Read call updates.
+
+Validation:
+- cd web/workspace && deno task check
+- cd web/workspace && deno task test
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:16:58Z from: inprogress to: done reason: cli_state field: state -->
+
+## State changed
+
+State changed to `done`.
+
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T22:17:10Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T22:17:10Z status: closed -->
+
+## 完了
+
+Implemented frontend Workspace Console tool call grouping. Tool call start/arg/done/result events now project into a single `Call · <tool>` block keyed by call id, with streaming state updates and folded result output. Added generic and TUI-aligned specialized summaries for core tools, including Bash command/output rendering. Validated with frontend check/test, diff check, and Nix package build.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-10T22:28:24Z -->
+
+## Implementation report
+
+Follow-up correction: Read rendering now matches the TUI special case more closely. Consecutive Read calls are aggregated into a single `Call · Read` block, and file contents / tool output are not rendered in the console body. The aggregate lists paths and state only, preserving summaries in detail.
+
+Validation:
+- cd web/workspace && deno task check
+- cd web/workspace && deno task test
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---

.yoi/tickets/00001KX72G8Z6/item.md

@@ -0,0 +1,32 @@
+---
+title: 'Add rich markdown tool rendering to workspace console'
+state: 'closed'
+created_at: '2026-07-10T22:31:21Z'
+updated_at: '2026-07-10T22:46:12Z'
+assignee: null
+queued_by: 'yoi ticket'
+queued_at: '2026-07-10T22:31:41Z'
+---
+
+## 背景
+
+Workspace Console の Call ブロック化後も、表示は plain text `<pre>` 中心で、TUI の色分け・Edit diff・Markdown/code block 表示が反映されていない。Console は TUI と同じ情報設計に寄せ、Assistant text や tool output を Markdown/HTML として読みやすく表示し、fenced code block は Shiki で highlight する。
+
+## 要件
+
+- TUI tool rendering の色分け方針を Frontend Console に移植する。
+- Assistant/tool body を Markdown から安全な HTML に変換して表示する。
+- fenced code block は Shiki で syntax highlight する。
+- Edit tool は old/new 文字列の diff を専用表示し、削除/追加/文脈行を色分けする。
+- Read tool aggregate は引き続き file content を body に表示しない。
+- Console model tests と UI/rendering tests を更新する。
+
+## 受け入れ条件
+
+- Console で assistant markdown が HTML として表示される。
+- fenced code block が Shiki の highlighted HTML として表示される。
+- Console tool blocks に TUI 相当の状態色・tool 色・diff 色が適用される。
+- Edit tool が old/new から diff block を生成し、削除行と追加行を別色で表示する。
+- Read aggregate は複数 Read をまとめ、file content を表示しない。
+- `cd web/workspace && deno task check` と `cd web/workspace && deno task test` が通る。
+- `nix build .#yoi` が通る。

.yoi/tickets/00001KX72G8Z6/resolution.md

@@ -0,0 +1 @@
+Added rich Workspace Console rendering: safe markdown HTML output, Shiki-highlighted fenced code blocks, TUI-inspired coloring for message/tool state, and structured Edit diff rows. Read aggregation continues to avoid displaying file content. Validation passed with frontend check/test, diff check, and Nix build.

.yoi/tickets/00001KX72G8Z6/thread.md

@@ -0,0 +1,91 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T22:31:21Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T22:31:40Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:31:40Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:31:41Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `yoi ticket` が queued にしました。
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:31:41Z from: queued to: inprogress reason: cli_state field: state -->
+
+## State changed
+
+State changed to `inprogress`.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-10T22:45:55Z -->
+
+## Implementation report
+
+Implemented rich Workspace Console rendering.
+
+- Added safe Markdown-to-HTML rendering for console bodies; raw HTML is escaped.
+- Added Shiki highlighting for fenced code blocks.
+- Added TUI-inspired Console colors for message kinds, tool types, tool states, and diff rows.
+- Added structured Edit diff projection using old_string/new_string and rendered add/remove/context rows.
+- Kept Read aggregate behavior: consecutive Read calls are grouped and file content is not shown in the body.
+- Added tests for Markdown escaping/Shiki rendering and Edit diff projection.
+
+Validation:
+- cd web/workspace && deno task check
+- cd web/workspace && deno task test
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T22:45:55Z from: inprogress to: done reason: cli_state field: state -->
+
+## State changed
+
+State changed to `done`.
+
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T22:46:12Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T22:46:12Z status: closed -->
+
+## 完了
+
+Added rich Workspace Console rendering: safe markdown HTML output, Shiki-highlighted fenced code blocks, TUI-inspired coloring for message/tool state, and structured Edit diff rows. Read aggregation continues to avoid displaying file content. Validation passed with frontend check/test, diff check, and Nix build.
+
+
+---

.yoi/tickets/00001KX7645ZS/item.md

@@ -0,0 +1,30 @@
+---
+title: 'Remove backend worker observation replay'
+state: 'closed'
+created_at: '2026-07-10T23:34:39Z'
+updated_at: '2026-07-10T23:50:55Z'
+assignee: null
+queued_by: 'yoi ticket'
+queued_at: '2026-07-10T23:35:04Z'
+---
+
+## 背景
+
+Workspace Console の worker observation WebSocket は、BackendObservationProxy の保存済み history を接続時に replay している。そのためページ読み込み直後に Snapshot の後で過去の `user_message` などが WS frame として流れ、Console では「過去イベントがストリームされている」ように見える。
+
+Console attach は現在状態の Snapshot と以後の live observation を見たいのであって、backend-local replay は不要。Snapshot は bootstrap、以後の event は live のみとする。
+
+## 要件
+
+- workspace-server の worker observation WebSocket から backend-local replay を削除する。
+- BackendObservationProxy は replay history を持たず、必要なら runtime cursor の引き継ぎだけを扱う。
+- Snapshot を backend history として保存・再送しない。
+- Frontend Console 接続時に、Snapshot 後に過去の `user_message` / `tool_result` 等が replay されない。
+- Runtime から live に届く observation event は従来通り browser に転送される。
+
+## 受け入れ条件
+
+- worker observation WS 接続時、最初に Snapshot が1回届き、その後は接続後に発生した live events のみ届く。
+- backend-local replay 用の history / cursor validation / cursor unknown handling が削除または無効化される。
+- 既存の proxy WS tests を replay 前提から snapshot + live 前提に更新する。
+- `cargo test` と `nix build .#yoi` が通る。

.yoi/tickets/00001KX7645ZS/resolution.md

@@ -0,0 +1 @@
+Removed backend-local worker observation replay. Worker Console attach now receives Runtime Snapshot as bootstrap and then live upstream events only; workspace-server no longer stores/replays previous user_message/tool_result/text_delta frames.

.yoi/tickets/00001KX7645ZS/thread.md

@@ -0,0 +1,89 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-10T23:34:39Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-10T23:35:04Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T23:35:04Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T23:35:04Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `yoi ticket` が queued にしました。
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T23:35:04Z from: queued to: inprogress reason: cli_state field: state -->
+
+## State changed
+
+State changed to `inprogress`.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-10T23:50:49Z -->
+
+## Implementation report
+
+Removed backend-local worker observation replay.
+
+- BackendObservationProxy no longer stores/replays event history.
+- Browser worker observation WS connects upstream directly after validating cursor syntax; any cursor is no longer matched against backend replay history.
+- Runtime Snapshot remains the connection bootstrap, and subsequent frames are live upstream events only.
+- Updated proxy tests to assert fresh connections receive Snapshot and not previously stored live events.
+
+Validation:
+- cargo test -q -p yoi-workspace-server
+- cargo test -q
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-10T23:50:50Z from: inprogress to: done reason: cli_state field: state -->
+
+## State changed
+
+State changed to `done`.
+
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-10T23:50:55Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-10T23:50:55Z status: closed -->
+
+## 完了
+
+Removed backend-local worker observation replay. Worker Console attach now receives Runtime Snapshot as bootstrap and then live upstream events only; workspace-server no longer stores/replays previous user_message/tool_result/text_delta frames.
+
+
+---

.yoi/tickets/00001KX7838M2/item.md

@@ -0,0 +1,29 @@
+---
+title: 'Remove worker observation WebSocket cursor surface'
+state: 'closed'
+created_at: '2026-07-11T00:09:06Z'
+updated_at: '2026-07-11T00:31:57Z'
+assignee: null
+queued_by: 'yoi ticket'
+queued_at: '2026-07-11T00:09:32Z'
+---
+
+## 背景
+
+Workspace worker observation WebSocket には backend-local `cursor` / `event_id` surface が残っているが、backend replay を削除した後は resume cursor として意味を持たない。Console attach は Snapshot + live events のみで十分であり、未読 output 読み取りが必要な場合は WebSocket cursor ではなく durable output/log 専用 cursor を別設計する。
+
+## 要件
+
+- workspace-server の worker observation browser-facing WebSocket から backend-local cursor surface を削除する。
+- `ClientWorkerEventsWsQuery.cursor` / `BackendObservationCursor` / backend `next_sequence` / `open()` / `store()` を削除または単純な envelope mapping に縮小する。
+- browser-facing event envelope は Runtime/Worker identity と payload に限定し、存在するなら runtime event id のみを重複抑止用に渡す。
+- Frontend Console は backend cursor に依存せず、runtime event id で dedupe する。
+- cursor 付き WS 接続は API surface として提供しない。クエリを無視する設計にせず、不要な型・検証・診断を消す。
+
+## 受け入れ条件
+
+- worker observation WS response frame に backend-local cursor が含まれない。
+- Frontend Console model / route が cursor を保持・利用しない。
+- backend-local cursor 関連型と cursor malformed/unknown handling が削除される。
+- Runtime observation cursor は runtime 内部または runtime endpoint だけの概念として残り、workspace-server browser surface には露出しない。
+- `cargo test`、`cd web/workspace && deno task check`、`cd web/workspace && deno task test`、`nix build .#yoi` が通る。

.yoi/tickets/00001KX7838M2/resolution.md

@@ -0,0 +1 @@
+Removed browser-facing worker observation cursor support. Workspace Console and Backend Runtime clients now attach to Snapshot + live events without backend cursor query or backend-local cursor state. Event envelopes expose runtime event id for dedupe only.

.yoi/tickets/00001KX7838M2/thread.md

@@ -0,0 +1,93 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-11T00:09:06Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-11T00:09:32Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T00:09:32Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T00:09:32Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `yoi ticket` が queued にしました。
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T00:09:33Z from: queued to: inprogress reason: cli_state field: state -->
+
+## State changed
+
+State changed to `inprogress`.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-11T00:31:41Z -->
+
+## Implementation report
+
+Removed the backend-local worker observation cursor surface.
+
+- Browser-facing worker observation envelopes no longer include `cursor`; they carry runtime/worker identity, runtime event id, and payload.
+- Workspace-server observation proxy no longer owns cursor state, cursor validation, replay state, or store/open methods; it only maps upstream Runtime events to browser envelopes.
+- Workspace-server WS attach ignores no cursor path because no cursor query is accepted/extracted.
+- Backend Runtime client no longer sends cursor query params or deduplicates by backend cursor.
+- Frontend Console no longer stores cursor/lastCursor and projects events by runtime event id.
+
+Validation:
+- cargo test -q -p yoi-workspace-server
+- cargo test -q -p client
+- cd web/workspace && deno task check
+- cd web/workspace && deno task test
+- cargo test -q
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T00:31:41Z from: inprogress to: done reason: cli_state field: state -->
+
+## State changed
+
+State changed to `done`.
+
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-11T00:31:57Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-11T00:31:57Z status: closed -->
+
+## 完了
+
+Removed browser-facing worker observation cursor support. Workspace Console and Backend Runtime clients now attach to Snapshot + live events without backend cursor query or backend-local cursor state. Event envelopes expose runtime event id for dedupe only.
+
+
+---

.yoi/tickets/00001KX7NS2PD/item.md

@@ -0,0 +1,30 @@
+---
+title: 'Remove durable worker lifecycle_state'
+state: 'closed'
+created_at: '2026-07-11T04:08:12Z'
+updated_at: '2026-07-11T04:34:08Z'
+assignee: null
+queued_by: 'yoi ticket'
+queued_at: '2026-07-11T04:09:06Z'
+---
+
+## 背景
+
+Backend worker registry は `lifecycle_state` を永続化しているが、`running` / `idle` / `stopped` などの Worker lifecycle は Runtime が authority を持つ live state であり、Backend DB に保存すると Runtime 再起動後に stale な state が Workers list に残る。Registry は Worker identity / refs / retention を保存し、live state は Runtime 問い合わせまたは短命 cache に限定する。
+
+## 要件
+
+- `WorkerRegistryRecord` と `worker_registry` schema から `lifecycle_state` を削除する。
+- worker registry upsert/select/read の SQL から `lifecycle_state` を削除する。
+- registry-only Worker projection は過去の lifecycle state を status/state として返さず、`archived` / `registry_only` 等の live ではない状態として表現する。
+- live Worker が存在する場合は Runtime 由来の status/state をそのまま使い、registry metadata は label/profile/retention/working-directory refs などに限定して merge する。
+- 既存 DB に `lifecycle_state` column が残っていても読み書きが壊れないよう、active schema/access path はその column に依存しない。
+
+## 受け入れ条件
+
+- `WorkerRegistryRecord` に `lifecycle_state` field が存在しない。
+- `worker_registry` の active CREATE TABLE / INSERT / SELECT / read path に `lifecycle_state` が存在しない。
+- `merge_worker_registry_projection(Some(live), ...)` が live status/state を registry value で上書きしない。
+- `worker_summary_from_registry()` が `idle` / `running` / `stopped` など過去の live lifecycle を返さない。
+- Workspace server tests が registry-only Worker と live Worker merge の両方を検証する。
+- `cargo test` と `nix build .#yoi` が通る。

.yoi/tickets/00001KX7NS2PD/resolution.md

@@ -0,0 +1 @@
+Removed durable `lifecycle_state` from Backend worker registry. Runtime remains the authority for live status/state; registry-only Workers project as archived, and cleanup planning uses live Runtime worker observation for running-linked checks. Existing DBs are migrated by schema v4 to remove the legacy column.

.yoi/tickets/00001KX7NS2PD/thread.md

@@ -0,0 +1,94 @@
+<!-- event: create author: "yoi ticket" at: 2026-07-11T04:08:12Z -->
+
+## 作成
+
+LocalTicketBackend によって作成されました。
+
+---
+
+<!-- event: intake_summary author: hare at: 2026-07-11T04:09:06Z -->
+
+## Intake summary
+
+Marked ready by `yoi ticket state`.
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T04:09:06Z from: planning to: ready reason: cli_state field: state -->
+
+## State changed
+
+Marked ready by `yoi ticket state`.
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T04:09:06Z from: ready to: queued reason: queued field: state -->
+
+## State changed
+
+Ticket を `yoi ticket` が queued にしました。
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T04:09:06Z from: queued to: inprogress reason: cli_state field: state -->
+
+## State changed
+
+State changed to `inprogress`.
+
+
+---
+
+<!-- event: implementation_report author: hare at: 2026-07-11T04:33:35Z -->
+
+## Implementation report
+
+Removed durable worker lifecycle state from the Backend worker registry.
+
+- `WorkerRegistryRecord` no longer has `lifecycle_state`.
+- Active worker_registry CREATE/INSERT/SELECT/read paths no longer include lifecycle state.
+- Added schema migration v4 to rebuild legacy worker_registry tables without the old lifecycle column.
+- Registry-only Worker projection now reports `archived` instead of stale `idle`/`running`/`stopped` values.
+- Live Worker merge no longer lets registry data overwrite Runtime status/state.
+- Cleanup planning uses live Runtime workers for running-linked detection; registry records only provide retention/link metadata.
+- Removed lifecycle_state from frontend cleanup candidate types/display.
+
+Validation:
+- cargo test -q -p yoi-workspace-server
+- cd web/workspace && deno task check
+- cd web/workspace && deno task test
+- cargo test -q
+- git diff --check
+- nix build .#yoi --no-link
+
+
+---
+
+<!-- event: state_changed author: "yoi ticket" at: 2026-07-11T04:33:35Z from: inprogress to: done reason: cli_state field: state -->
+
+## State changed
+
+State changed to `done`.
+
+
+---
+
+<!-- event: state_changed author: hare at: 2026-07-11T04:34:08Z from: done to: closed reason: closed field: state -->
+
+## State changed
+
+Ticket を closed にしました。
+
+
+---
+
+<!-- event: close author: hare at: 2026-07-11T04:34:08Z status: closed -->
+
+## 完了
+
+Removed durable `lifecycle_state` from Backend worker registry. Runtime remains the authority for live status/state; registry-only Workers project as archived, and cleanup planning uses live Runtime worker observation for running-linked checks. Existing DBs are migrated by schema v4 to remove the legacy column.
+
+
+---

Cargo.lock

@@ -1060,17 +1060,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
-[[package]]
-name = "erased-serde"
-version = "0.4.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2add8a07dd6a8d93ff627029c51de145e12686fbc36ecb298ac22e74cf02dec"
-dependencies = [
- "serde",
- "serde_core",
- "typeid",
-]
-
 [[package]]
 name = "errno"
 version = "0.3.14"
@@ -2206,25 +2195,6 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
 
-[[package]]
-name = "lua-src"
-version = "550.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e836dc8ae16806c9bdcf42003a88da27d163433e3f9684c52f0301258004a4fb"
-dependencies = [
- "cc",
-]
-
-[[package]]
-name = "luajit-src"
-version = "210.6.6+707c12b"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a86cc925d4053d0526ae7f5bc765dbd0d7a5d1a63d43974f4966cb349ca63295"
-dependencies = [
- "cc",
- "which",
-]
-
 [[package]]
 name = "mac"
 version = "0.1.1"
@@ -2256,7 +2226,6 @@ version = "0.1.0"
 dependencies = [
  "arc-swap",
  "llm-engine",
- "mlua",
  "protocol",
  "secrets",
  "serde",
@@ -2444,39 +2413,6 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
-[[package]]
-name = "mlua"
-version = "0.11.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccd36acfa49ce6ee56d1307a061dd302c564eee757e6e4cd67eb4f7204846fab"
-dependencies = [
- "bstr",
- "either",
- "erased-serde",
- "libc",
- "mlua-sys",
- "num-traits",
- "parking_lot",
- "rustc-hash",
- "rustversion",
- "serde",
- "serde-value",
-]
-
-[[package]]
-name = "mlua-sys"
-version = "0.10.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f1c3a7fc7580227ece249fd90aa2fa3b39eb2b49d3aec5e103b3e85f2c3dfc8"
-dependencies = [
- "cc",
- "cfg-if",
- "libc",
- "lua-src",
- "luajit-src",
- "pkg-config",
-]
-
 [[package]]
 name = "native-tls"
 version = "0.2.18"
@@ -2671,15 +2607,6 @@ dependencies = [
  "vcpkg",
 ]
 
-[[package]]
-name = "ordered-float"
-version = "2.10.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68f19d67e5a2795c94e73e0bb1cc1a7edeb2e28efd39e2e1c9b7a40c1108b11c"
-dependencies = [
- "num-traits",
-]
-
 [[package]]
 name = "ordered-float"
 version = "4.6.0"
@@ -3683,16 +3610,6 @@ dependencies = [
  "serde_derive",
 ]
 
-[[package]]
-name = "serde-value"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3a1a3341211875ef120e117ea7fd5228530ae7e7036a779fdc9117be6b3282c"
-dependencies = [
- "ordered-float 2.10.1",
- "serde",
-]
-
 [[package]]
 name = "serde_core"
 version = "1.0.228"
@@ -4228,7 +4145,7 @@ dependencies = [
  "nix",
  "num-derive",
  "num-traits",
- "ordered-float 4.6.0",
+ "ordered-float",
  "pest",
  "pest_derive",
  "phf 0.11.3",
@@ -4744,12 +4661,6 @@ dependencies = [
  "pom",
 ]
 
-[[package]]
-name = "typeid"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc7d623258602320d5c55d1bc22793b57daff0ec7efc270ea7d55ce1d5f5471c"
-
 [[package]]
 name = "typenum"
 version = "1.19.0"
@@ -5428,7 +5339,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5f2ab60e120fd6eaa68d9567f3226e876684639d22a4219b313ff69ec0ccd5ac"
 dependencies = [
  "log",
- "ordered-float 4.6.0",
+ "ordered-float",
  "strsim",
  "thiserror 1.0.69",
  "wezterm-dynamic-derive",
@@ -5458,15 +5369,6 @@ dependencies = [
  "wezterm-dynamic",
 ]
 
-[[package]]
-name = "which"
-version = "8.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81995fafaaaf6ae47a7d0cc83c67caf92aeb7e5331650ae6ff856f7c0c60c459"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -5946,6 +5848,7 @@ dependencies = [
  "thiserror 2.0.18",
  "tokio",
  "tokio-tungstenite 0.29.0",
+ "toml",
  "tower",
  "worker",
 ]

crates/client/src/backend_runtime.rs

@@ -3,13 +3,12 @@ use std::fmt;
 use std::time::Duration;
 
 use futures::StreamExt;
-use protocol::{ErrorCode, Event, Greeting, InFlightSnapshot, Method, Segment, WorkerStatus};
+use protocol::{ErrorCode, Event, Method, Segment};
 use serde::{Deserialize, Serialize};
 use tokio::sync::mpsc;
 use tokio_tungstenite::connect_async;
 use tokio_tungstenite::tungstenite::Message as TungsteniteMessage;
 
-const TRANSCRIPT_SNAPSHOT_LIMIT: usize = 512;
 const RECONNECT_DELAY: Duration = Duration::from_millis(500);
 const MAX_RECONNECT_ATTEMPTS: usize = 3;
 
@@ -80,31 +79,10 @@ impl BackendRuntimeClient {
         let http = reqwest::Client::new();
         let (tx, rx) = mpsc::unbounded_channel();
 
-        let suppress_initial_snapshot = match load_initial_transcript(&http, &target).await {
-            Ok(events) => {
-                for event in events {
-                    let _ = tx.send(event);
-                }
-                true
-            }
-            Err(error) => {
-                let _ = tx.send(diagnostic_event(format!(
-                    "Backend initial transcript unavailable for {}: {error}",
-                    target.display_label()
-                )));
-                false
-            }
-        };
-
         let observation_target = target.clone();
         let observation_tx = tx.clone();
         let observation_task = tokio::spawn(async move {
-            observe_worker_events(
+            observe_worker_events(observation_target, observation_tx).await;
-                observation_target,
-                observation_tx,
-                suppress_initial_snapshot,
-            )
-            .await;
         });
 
         Ok(Self {
@@ -291,86 +269,11 @@ fn backend_command_from_method(method: &Method) -> BackendCommand {
     }
 }
 
-async fn load_initial_transcript(
+async fn observe_worker_events(target: BackendRuntimeTarget, tx: mpsc::UnboundedSender<Event>) {
-    http: &reqwest::Client,
-    target: &BackendRuntimeTarget,
-) -> Result<Vec<Event>, BackendRuntimeClientError> {
-    let path = format!(
-        "/api/runtimes/{}/workers/{}/transcript?start=0&limit={TRANSCRIPT_SNAPSHOT_LIMIT}",
-        path_segment_encode(&target.runtime_id),
-        path_segment_encode(&target.worker_id)
-    );
-    let response = http
-        .get(join_base_and_path(&target.base_url, &path))
-        .send()
-        .await?
-        .error_for_status()?;
-    let transcript: WorkerTranscriptProjection = response.json().await?;
-    Ok(transcript_projection_to_events(target, transcript))
-}
-
-fn transcript_projection_to_events(
-    target: &BackendRuntimeTarget,
-    transcript: WorkerTranscriptProjection,
-) -> Vec<Event> {
-    let mut events = vec![Event::Snapshot {
-        entries: Vec::new(),
-        greeting: Greeting {
-            worker_name: target.worker_id.clone(),
-            cwd: String::new(),
-            provider: "backend-runtime-api".to_string(),
-            model: target.runtime_id.clone(),
-            scope_summary: "Backend Runtime API worker observation".to_string(),
-            tools: Vec::new(),
-            context_window: 0,
-            context_tokens: 0,
-        },
-        status: WorkerStatus::Idle,
-        in_flight: InFlightSnapshot { blocks: Vec::new() },
-    }];
-
-    for item in transcript.items {
-        match item.role.as_str() {
-            "user" => events.push(Event::UserMessage {
-                segments: vec![Segment::text(item.content)],
-            }),
-            "assistant" => {
-                events.push(Event::TextDelta {
-                    text: item.content.clone(),
-                });
-                events.push(Event::TextDone { text: item.content });
-            }
-            role => events.push(Event::Alert(protocol::Alert {
-                level: protocol::AlertLevel::Warn,
-                source: protocol::AlertSource::Worker,
-                message: format!(
-                    "Backend transcript item with role `{role}` is not rendered as chat content"
-                ),
-                timestamp_ms: 0,
-            })),
-        }
-    }
-
-    for diagnostic in transcript.diagnostics {
-        events.push(diagnostic_event(format!(
-            "Backend transcript diagnostic [{}]: {}",
-            diagnostic.code, diagnostic.message
-        )));
-    }
-    events
-}
-
-async fn observe_worker_events(
-    target: BackendRuntimeTarget,
-    tx: mpsc::UnboundedSender<Event>,
-    mut suppress_next_snapshot: bool,
-) {
-    let mut cursor: Option<String> = None;
-    let mut last_sequence = 0_u64;
     let mut attempts = 0_usize;
 
     loop {
-        let url = observation_ws_url(&target, cursor.as_deref());
+        let url = observation_ws_url(&target);
         match connect_async(&url).await {
             Ok((mut ws, _)) => {
                 attempts = 0;
@@ -390,25 +293,6 @@ async fn observe_worker_events(
                                         )));
                                         continue;
                                     }
-                                    if let Some(sequence) = decode_backend_cursor(&envelope.cursor)
-                                    {
-                                        if sequence <= last_sequence {
-                                            continue;
-                                        }
-                                        last_sequence = sequence;
-                                    } else {
-                                        let _ = tx.send(diagnostic_event(format!(
-                                            "Backend observation cursor was malformed: {}",
-                                            envelope.cursor
-                                        )));
-                                    }
-                                    cursor = Some(envelope.cursor.clone());
-                                    if suppress_next_snapshot
-                                        && matches!(envelope.payload, Event::Snapshot { .. })
-                                    {
-                                        suppress_next_snapshot = false;
-                                        continue;
-                                    }
                                     let _ = tx.send(envelope.payload);
                                 }
                                 Ok(ClientWorkerEventWsFrame::Diagnostic { diagnostic }) => {
@@ -417,11 +301,6 @@ async fn observe_worker_events(
                                         diagnostic.code, diagnostic.message
                                     );
                                     let _ = tx.send(diagnostic_event(message));
-                                    if diagnostic.code == "backend.cursor_unknown_or_expired" {
-                                        cursor = None;
-                                        last_sequence = 0;
-                                        break;
-                                    }
                                 }
                                 Err(error) => {
                                     let _ = tx.send(diagnostic_event(format!(
@@ -496,18 +375,13 @@ fn validate_target(target: &BackendRuntimeTarget) -> Result<(), BackendRuntimeCl
     Ok(())
 }
 
-fn observation_ws_url(target: &BackendRuntimeTarget, cursor: Option<&str>) -> String {
+fn observation_ws_url(target: &BackendRuntimeTarget) -> String {
     let path = format!(
         "/api/runtimes/{}/workers/{}/events/ws",
         path_segment_encode(&target.runtime_id),
         path_segment_encode(&target.worker_id)
     );
-    let mut url = join_base_and_path(&http_base_to_ws(&target.base_url), &path);
+    join_base_and_path(&http_base_to_ws(&target.base_url), &path)
-    if let Some(cursor) = cursor {
-        url.push_str("?cursor=");
-        url.push_str(&query_value_encode(cursor));
-    }
-    url
 }
 
 fn http_base_to_ws(base: &str) -> String {
@@ -524,26 +398,12 @@ fn join_base_and_path(base: &str, path: &str) -> String {
     format!("{}{}", base.trim_end_matches('/'), path)
 }
 
-fn decode_backend_cursor(cursor: &str) -> Option<u64> {
-    let encoded = cursor.strip_prefix("bo_")?;
-    if encoded.len() != 16 {
-        return None;
-    }
-    u64::from_str_radix(encoded, 16).ok()
-}
-
 fn path_segment_encode(input: &str) -> String {
     percent_encode(input, |byte| {
         byte.is_ascii_alphanumeric() || matches!(byte, b'-' | b'.' | b'_' | b'~')
     })
 }
 
-fn query_value_encode(input: &str) -> String {
-    percent_encode(input, |byte| {
-        byte.is_ascii_alphanumeric() || matches!(byte, b'-' | b'.' | b'_' | b'~')
-    })
-}
-
 fn percent_encode(input: &str, keep: impl Fn(u8) -> bool) -> String {
     let mut encoded = String::with_capacity(input.len());
     for byte in input.bytes() {
@@ -595,20 +455,6 @@ struct BackendDiagnostic {
     message: String,
 }
 
-#[derive(Debug, Deserialize)]
-struct WorkerTranscriptProjection {
-    #[serde(default)]
-    items: Vec<WorkerTranscriptItem>,
-    #[serde(default)]
-    diagnostics: Vec<BackendDiagnostic>,
-}
-
-#[derive(Debug, Deserialize)]
-struct WorkerTranscriptItem {
-    role: String,
-    content: String,
-}
-
 #[derive(Debug, Deserialize)]
 #[serde(tag = "kind", rename_all = "snake_case")]
 enum ClientWorkerEventWsFrame {
@@ -622,7 +468,6 @@ enum ClientWorkerEventWsFrame {
 
 #[derive(Debug, Deserialize)]
 struct ClientWorkerEventWsEnvelope {
-    cursor: String,
     runtime_id: String,
     worker_id: String,
     payload: Event,
@@ -662,33 +507,8 @@ mod tests {
         let target =
             BackendRuntimeTarget::new("http://127.0.0.1:8787/", "runtime/one", "worker one");
         assert_eq!(
-            observation_ws_url(&target, Some("bo_0000000000000001")),
+            observation_ws_url(&target),
-            "ws://127.0.0.1:8787/api/runtimes/runtime%2Fone/workers/worker%20one/events/ws?cursor=bo_0000000000000001"
+            "ws://127.0.0.1:8787/api/runtimes/runtime%2Fone/workers/worker%20one/events/ws"
         );
     }
-
-    #[test]
-    fn transcript_projection_seeds_snapshot_and_chat_events() {
-        let target = BackendRuntimeTarget::new("http://backend", "runtime-a", "worker-b");
-        let events = transcript_projection_to_events(
-            &target,
-            WorkerTranscriptProjection {
-                items: vec![
-                    WorkerTranscriptItem {
-                        role: "user".to_string(),
-                        content: "hi".to_string(),
-                    },
-                    WorkerTranscriptItem {
-                        role: "assistant".to_string(),
-                        content: "hello".to_string(),
-                    },
-                ],
-                diagnostics: Vec::new(),
-            },
-        );
-        assert!(matches!(events[0], Event::Snapshot { .. }));
-        assert!(matches!(events[1], Event::UserMessage { .. }));
-        assert!(matches!(events[2], Event::TextDelta { .. }));
-        assert!(matches!(events[3], Event::TextDone { .. }));
-    }
 }

crates/client/src/ticket_role.rs

@@ -1227,7 +1227,7 @@ workflow = "ticket-review-workflow"
             temp.path(),
             r#"
 [roles.coder]
-profile = "./coder.lua"
+profile = "./coder.toml"
 "#,
         );
         let context = TicketRoleLaunchContext::new(temp.path(), TicketRole::Coder);

crates/manifest/Cargo.toml

@@ -7,7 +7,6 @@ license.workspace = true
 [dependencies]
 arc-swap = "1"
 llm-engine = { workspace = true }
-mlua = { version = "0.11.4", features = ["lua54", "vendored", "serialize"] }
 protocol = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }

crates/manifest/src/lib.rs

@@ -1193,9 +1193,9 @@ model_id = "claude-sonnet-4-20250514"
         let toml = MINIMAL_REQUIRED.replace(
             "[engine]\n",
             "[engine]\n\
-             [worker.tool_output]\n\
+             [engine.tool_output]\n\
              default_max_bytes = 8192\n\n\
-             [worker.tool_output.per_tool]\n\
+             [engine.tool_output.per_tool]\n\
              Read = 32768\n\
              Grep = 4096\n\n\
              [engine.file_upload]\n\
@@ -1215,7 +1215,7 @@ model_id = "claude-sonnet-4-20250514"
         let toml = MINIMAL_REQUIRED.replace(
             "[engine]\n",
             "[engine]\n\
-             [worker.tool_output]\n",
+             [engine.tool_output]\n",
         );
         let manifest = WorkerManifest::from_toml(&toml).unwrap();
         let limits = &manifest.engine.tool_output;

crates/session-store/src/worker_metadata.rs

@@ -100,8 +100,13 @@ pub struct WorkerMetadata {
     pub worker_name: String,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub active: Option<WorkerActiveSegmentRef>,
+    /// Legacy local path hint retained for host/runtime compatibility. It is not
+    /// Worker workspace identity or authority.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub workspace_root: Option<PathBuf>,
+    /// Path-free workspace identity supplied by the host/runtime boundary.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub workspace_id: Option<String>,
     #[serde(default, skip_serializing_if = "Vec::is_empty")]
     pub spawned_children: Vec<WorkerSpawnedChild>,
     #[serde(default, skip_serializing_if = "Vec::is_empty")]
@@ -119,6 +124,7 @@ impl WorkerMetadata {
             worker_name: worker_name.into(),
             active,
             workspace_root: None,
+            workspace_id: None,
             spawned_children: Vec::new(),
             reclaimed_children: Vec::new(),
             peers: Vec::new(),
@@ -130,6 +136,11 @@ impl WorkerMetadata {
         self.workspace_root = Some(workspace_root);
         self
     }
+
+    pub fn with_workspace_id(mut self, workspace_id: impl Into<String>) -> Self {
+        self.workspace_id = Some(workspace_id.into());
+        self
+    }
 }
 
 /// Sync persistence backend for Worker metadata.
@@ -180,6 +191,44 @@ pub trait WorkerMetadataStore: Send + Sync {
     }
 
     /// Set the active pointer and workspace ownership while preserving unrelated fields.
+    fn set_active_with_workspace_context(
+        &self,
+        worker_name: &str,
+        active: Option<WorkerActiveSegmentRef>,
+        resolved_manifest_snapshot: Option<serde_json::Value>,
+        workspace_id: Option<String>,
+        workspace_root: Option<PathBuf>,
+    ) -> Result<WorkerMetadata, WorkerStoreError> {
+        self.update_by_name(worker_name, |metadata| {
+            metadata.active = active;
+            metadata.resolved_manifest_snapshot = resolved_manifest_snapshot;
+            if let Some(workspace_id) = workspace_id {
+                metadata.workspace_id = Some(workspace_id);
+            }
+            if let Some(workspace_root) = workspace_root {
+                metadata.workspace_root = Some(workspace_root);
+            }
+        })
+    }
+
+    /// Set the active pointer and path-free workspace identity while preserving unrelated fields.
+    fn set_active_with_workspace_id(
+        &self,
+        worker_name: &str,
+        active: Option<WorkerActiveSegmentRef>,
+        resolved_manifest_snapshot: Option<serde_json::Value>,
+        workspace_id: Option<String>,
+    ) -> Result<WorkerMetadata, WorkerStoreError> {
+        self.update_by_name(worker_name, |metadata| {
+            metadata.active = active;
+            metadata.resolved_manifest_snapshot = resolved_manifest_snapshot;
+            if let Some(workspace_id) = workspace_id {
+                metadata.workspace_id = Some(workspace_id);
+            }
+        })
+    }
+
+    /// Set the active pointer and legacy local workspace-root hint while preserving unrelated fields.
     fn set_active_with_workspace_root(
         &self,
         worker_name: &str,
@@ -497,7 +546,7 @@ mod tests {
         );
         metadata.resolved_manifest_snapshot = Some(serde_json::json!({
             "worker": { "name": "profile-worker" },
-            "profile": { "source": { "kind": "path", "path": "/profiles/coder.lua" } }
+            "profile": { "source": { "kind": "path", "path": "/profiles/coder.toml" } }
         }));
 
         let json = serde_json::to_string(&metadata).unwrap();

crates/ticket/src/config.rs

@@ -526,7 +526,9 @@ impl ProfileSelectorRef {
         if value.starts_with("path:")
             || value.starts_with('.')
             || value.contains('/')
-            || value.ends_with(".lua")
+            || value.ends_with(".dcdl")
+            || value.ends_with(".json")
+            || value.ends_with(".toml")
             || value.ends_with(".nix")
         {
             return Err("profile selector must be `inherit`, `default`, a source-qualified registry selector, or an unqualified registry selector; path selectors are not supported".to_string());
@@ -1347,7 +1349,7 @@ profile = "legacy.nix"
             temp.path(),
             r#"
 [roles.coder]
-profile = "./coder.lua"
+profile = "./coder.toml"
 "#,
         );
 

crates/tools/src/tracker.rs

@@ -34,7 +34,7 @@
 //! let fs = ScopedFs::new(scope, PathBuf::from("/workspace")); // worker lifetime
 //! let tracker = Tracker::new();    // session lifetime
 //! let bash_outputs = PathBuf::from("/run/yoi/bash-output");
-//! let defs = core_builtin_tools(fs, tracker, bash_outputs, None);
+//! let defs = core_builtin_tools(fs, tracker, bash_outputs);
 //! ```
 
 use std::collections::{HashMap, VecDeque};

crates/tui/src/setup_model.rs

@@ -8,7 +8,7 @@ use toml::Value;
 use toml::map::Map;
 
 const GENERATED_PROFILE_NAME: &str = "default";
-const GENERATED_PROFILE_PATH: &str = "profiles/default.lua";
+const GENERATED_PROFILE_PATH: &str = "profiles/default.toml";
 const GENERATED_PROFILE_DESCRIPTION: &str = "Generated by yoi setup-model";
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -149,7 +149,7 @@ pub fn write_default_profile_config(
     std::fs::create_dir_all(&profiles_dir)?;
 
     let profile_path = config_dir.join(GENERATED_PROFILE_PATH);
-    std::fs::write(&profile_path, generated_profile_lua(model_ref))?;
+    std::fs::write(&profile_path, generated_profile_toml(model_ref))?;
 
     let registry_path = config_dir.join("profiles.toml");
     let mut document = read_registry_document(&registry_path)?;
@@ -203,65 +203,63 @@ fn set_default_profile_entry(document: &mut Value) -> Result<(), Box<dyn std::er
     Ok(())
 }
 
-fn generated_profile_lua(model_ref: &str) -> String {
+fn generated_profile_toml(model_ref: &str) -> String {
     format!(
-        r#"local profile = require("yoi.profile")
+        r#"slug = "default"
-local scope = require("yoi.scope")
+description = "Generated by yoi setup-model"
-local compact = require("yoi.compact")
+scope = "workspace_write"
 
-return profile {{
+[model]
-    slug = "default",
+ref = "{}"
-    description = "Generated by yoi setup-model",
 
-    scope = scope.workspace_write(),
+[session]
+record_event_trace = true
 
-    session = {{
+[engine]
-        record_event_trace = true,
+reasoning = "high"
-    }},
 
-    worker = {{
+[compaction]
-        reasoning = "high",
+kind = "tokens"
-    }},
+threshold = 240000
+request_threshold = 270000
+worker_context_max_tokens = 100000
 
-    model = {{
+[feature.task]
-        ref = "{}",
+enabled = true
-    }},
 
-    compaction = compact.tokens {{
+[feature.memory]
-        threshold = 240000,
+enabled = true
-        request_threshold = 270000,
-        worker_context_max_tokens = 100000,
-    }},
 
-    feature = {{
+[feature.web]
-        task = {{ enabled = true }},
+enabled = true
-        memory = {{ enabled = true }},
-        web = {{ enabled = true }},
-        workers = {{ enabled = false }},
-        ticket = {{ enabled = false, access = "lifecycle" }},
-        ticket_orchestration = {{ enabled = false }},
-    }},
 
-    memory = {{
+[feature.workers]
-        extract_threshold = 50000,
+enabled = false
-        consolidation_threshold_files = 5,
-        consolidation_threshold_bytes = 50000,
-    }},
 
-    web = {{
+[feature.ticket]
-        enabled = true,
+enabled = false
-        search = {{
+access = "lifecycle"
-            provider = "brave",
+
-            api_key_secret = "web/brave/default",
+[feature.ticket_orchestration]
-        }},
+enabled = false
-    }},
+
-}}
+[memory]
+extract_threshold = 50000
+consolidation_threshold_files = 5
+consolidation_threshold_bytes = 50000
+
+[web]
+enabled = true
+
+[web.search]
+provider = "brave"
+api_key_secret = "web/brave/default"
 "#,
-        escape_lua_string(model_ref)
+        escape_toml_string(model_ref)
     )
 }
 
-fn escape_lua_string(value: &str) -> String {
+fn escape_toml_string(value: &str) -> String {
     value
         .chars()
         .flat_map(|c| match c {
@@ -288,18 +286,18 @@ mod tests {
         assert_eq!(written.registry_path, dir.path().join("profiles.toml"));
         assert_eq!(
             written.profile_path,
-            dir.path().join("profiles/default.lua")
+            dir.path().join("profiles/default.toml")
         );
 
         let registry = std::fs::read_to_string(&written.registry_path).unwrap();
         assert!(registry.contains("default = \"user:default\""));
         assert!(registry.contains("[profile.default]"));
-        assert!(registry.contains("path = \"profiles/default.lua\""));
+        assert!(registry.contains("path = \"profiles/default.toml\""));
 
         let profile = std::fs::read_to_string(&written.profile_path).unwrap();
         assert!(profile.contains("slug = \"default\""));
         assert!(profile.contains("ref = \"codex-oauth/gpt-5.5\""));
-        assert!(profile.contains("scope = scope.workspace_write()"));
+        assert!(profile.contains("scope = \"workspace_write\""));
     }
 
     #[test]
@@ -308,7 +306,7 @@ mod tests {
         std::fs::write(
             dir.path().join("profiles.toml"),
             r#"[profile.other]
-path = "profiles/other.lua"
+path = "profiles/other.toml"
 description = "keep me"
 "#,
         )
@@ -318,13 +316,13 @@ description = "keep me"
 
         let registry = std::fs::read_to_string(dir.path().join("profiles.toml")).unwrap();
         assert!(registry.contains("[profile.other]"));
-        assert!(registry.contains("path = \"profiles/other.lua\""));
+        assert!(registry.contains("path = \"profiles/other.toml\""));
         assert!(registry.contains("[profile.default]"));
         assert!(registry.contains("default = \"user:default\""));
     }
 
     #[test]
-    fn escape_lua_string_escapes_quotes_and_slashes() {
+    fn escape_toml_string_escapes_quotes_and_slashes() {
-        assert_eq!(escape_lua_string("a\\b\"c"), "a\\\\b\\\"c");
+        assert_eq!(escape_toml_string("a\\b\"c"), "a\\\\b\\\"c");
     }
 }

crates/tui/src/spawn.rs

@@ -664,7 +664,7 @@ mod tests {
             r#"
 default = "coder"
 [profile]
-coder = "profiles/coder.lua"
+coder = "profiles/coder.toml"
 "#,
         )
         .unwrap();
@@ -692,7 +692,7 @@ coder = "profiles/coder.lua"
             r#"
 default = "coder"
 [profile.coder]
-path = "profiles/coder.lua"
+path = "profiles/coder.toml"
 description = "Project coder"
 "#,
         )

crates/worker-runtime/Cargo.toml

@@ -32,6 +32,7 @@ reqwest = { version = "0.13", optional = true, default-features = false, feature
 tar.workspace = true
 thiserror = { workspace = true }
 tokio = { workspace = true, features = ["net", "rt", "sync", "time"] }
+toml.workspace = true
 tower = { workspace = true, features = ["util"], optional = true }
 worker.workspace = true
 

crates/worker-runtime/src/catalog.rs

@@ -1,10 +1,11 @@
 use crate::execution::WorkerExecutionStatus;
 use crate::identity::{RuntimeId, WorkerId, WorkerRef};
 use crate::interaction::WorkerInput;
+use crate::profile_archive::{ProfileSourceArchive, ProfileSourceArchiveRef};
 use serde::{Deserialize, Serialize};
 use std::path::PathBuf;
 
-/// Profile selector boundary. This is a selector, not a resolved config bundle.
+/// Profile selector boundary. This is a selector, not a resolved runtime config.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(tag = "kind", content = "value", rename_all = "snake_case")]
 pub enum ProfileSelector {
@@ -19,7 +20,36 @@ impl Default for ProfileSelector {
     }
 }
 
-/// Backend-synced config bundle reference used during Worker creation.
+/// Runtime fetch/caching metadata for a Backend-authored Decodal profile source archive.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct ProfileSourceArchiveHttpRef {
+    pub url: String,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub etag: Option<String>,
+    pub archive: ProfileSourceArchiveRef,
+}
+
+/// Profile source material available to a Runtime during Worker creation.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[serde(tag = "kind", rename_all = "snake_case")]
+pub enum ProfileSourceArchiveSource {
+    /// Backend-internal embedded runtimes may receive already-built archive bytes.
+    Embedded { archive: ProfileSourceArchive },
+    /// Standalone runtimes fetch/cache the tar archive over HTTP.
+    Http {
+        location: ProfileSourceArchiveHttpRef,
+    },
+}
+
+impl ProfileSourceArchiveSource {
+    pub fn reference(&self) -> ProfileSourceArchiveRef {
+        match self {
+            Self::Embedded { archive } => archive.reference.clone(),
+            Self::Http { location } => location.archive.clone(),
+        }
+    }
+}
+
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct ConfigBundleRef {
     pub id: String,
@@ -87,6 +117,10 @@ pub struct WorkingDirectoryRequest {
     pub materializer: MaterializerKind,
     #[serde(default)]
     pub dirty_state_policy: DirtyStatePolicy,
+    /// Backend-assigned stable Workdir id. Runtimes use this when present so the
+    /// Backend can create canonical registry rows before materialization.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub backend_workdir_id: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
@@ -128,6 +162,10 @@ pub struct WorkingDirectorySummary {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub cleanup_policy: Option<String>,
     pub status: WorkingDirectoryStatusKind,
+    /// Backend projection metadata. Runtimes leave this absent; Workspace Browser
+    /// APIs fill it with `backend_managed` or `runtime_unmanaged`.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub management_kind: Option<String>,
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
@@ -139,16 +177,17 @@ pub struct WorkingDirectoryStatus {
 ///
 /// Browser/product launch semantics are resolved by a backend before this
 /// request is built. The request contains only durable Runtime identity inputs:
-/// a backend-decided profile selector, a previously synced ConfigBundle identity,
+/// a backend-decided profile selector, the Decodal profile source archive source
-/// optional initial user input that is committed in the same transaction as
+/// used to resolve that selector, optional initial user input committed as a
-/// Worker catalog/transcript persistence, and an optional working directory
+/// protocol observation event, and an optional Runtime-owned working directory
-/// request that preserves RepositoryPoint-style semantics for runtime-side
+/// binding. Browser-facing status for materialized working directories is
-/// materialization. Browser-facing status for materialized working directories is
 /// summarized without exposing raw host paths.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct CreateWorkerRequest {
     pub profile: ProfileSelector,
-    pub config_bundle: ConfigBundleRef,
+    pub profile_source: ProfileSourceArchiveSource,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub config_bundle: Option<ConfigBundleRef>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub initial_input: Option<WorkerInput>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
@@ -181,8 +220,9 @@ pub struct WorkerSummary {
     pub status: WorkerStatus,
     pub execution: WorkerExecutionStatus,
     pub profile: ProfileSelector,
-    pub config_bundle: ConfigBundleRef,
+    pub profile_source: ProfileSourceArchiveRef,
-    pub transcript_len: usize,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub config_bundle: Option<ConfigBundleRef>,
     pub last_event_id: u64,
 }
 
@@ -195,8 +235,9 @@ pub struct WorkerDetail {
     pub status: WorkerStatus,
     pub execution: WorkerExecutionStatus,
     pub profile: ProfileSelector,
-    pub config_bundle: ConfigBundleRef,
+    pub profile_source: ProfileSourceArchiveRef,
-    pub transcript_len: usize,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub config_bundle: Option<ConfigBundleRef>,
     pub last_event_id: u64,
 }
 

crates/worker-runtime/src/execution.rs

@@ -1,11 +1,11 @@
-use crate::catalog::{CreateWorkerRequest, WorkingDirectoryStatus};
+use crate::catalog::{CreateWorkerRequest, WorkingDirectoryRequest, WorkingDirectoryStatus};
 use crate::config_bundle::ConfigBundle;
 use crate::error::RuntimeError;
 use crate::identity::WorkerRef;
 use crate::interaction::WorkerInput;
 #[cfg(feature = "ws-server")]
 use crate::observation::WorkerObservationEvent;
-use crate::working_directory::WorkingDirectoryBinding;
+use crate::working_directory::{WorkingDirectoryBinding, WorkingDirectoryDiagnostic};
 use serde::{Deserialize, Serialize};
 use std::fmt;
 use std::sync::Arc;
@@ -305,7 +305,7 @@ pub enum WorkerExecutionSpawnResult {
 
 /// Backend boundary for Worker execution.
 ///
-/// Runtime owns Worker catalog, transcript, observation, and lifecycle state. A
+/// Runtime owns Worker catalog, protocol observation, and lifecycle state. A
 /// backend owns concrete execution. The default Runtime has no backend, so input
 /// to those Workers is rejected instead of producing providerless responses.
 pub trait WorkerExecutionBackend: Send + Sync + 'static {
@@ -313,6 +313,42 @@ pub trait WorkerExecutionBackend: Send + Sync + 'static {
 
     fn spawn_worker(&self, request: WorkerExecutionSpawnRequest) -> WorkerExecutionSpawnResult;
 
+    fn create_working_directory(
+        &self,
+        _request: &WorkingDirectoryRequest,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        Err(WorkingDirectoryDiagnostic::rejected(
+            "working_directory_unsupported",
+            "Worker execution backend does not support working directory materialization",
+        ))
+    }
+
+    fn list_working_directories(&self) -> Vec<WorkingDirectoryStatus> {
+        Vec::new()
+    }
+
+    fn working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        Err(WorkingDirectoryDiagnostic::rejected(
+            "working_directory_unknown",
+            format!("working directory `{working_directory_id}` is not known to this Runtime"),
+        ))
+    }
+
+    fn cleanup_working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        Err(WorkingDirectoryDiagnostic::rejected(
+            "working_directory_cleanup_unsupported",
+            format!(
+                "working directory `{working_directory_id}` cannot be cleaned up by this backend"
+            ),
+        ))
+    }
+
     fn dispatch_input(
         &self,
         handle: &WorkerExecutionHandle,
@@ -358,6 +394,31 @@ impl WorkerExecutionBackendRef {
         self.backend.spawn_worker(request)
     }
 
+    pub(crate) fn create_working_directory(
+        &self,
+        request: &WorkingDirectoryRequest,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        self.backend.create_working_directory(request)
+    }
+
+    pub(crate) fn list_working_directories(&self) -> Vec<WorkingDirectoryStatus> {
+        self.backend.list_working_directories()
+    }
+
+    pub(crate) fn working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        self.backend.working_directory(working_directory_id)
+    }
+
+    pub(crate) fn cleanup_working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        self.backend.cleanup_working_directory(working_directory_id)
+    }
+
     pub(crate) fn dispatch_input(
         &self,
         handle: &WorkerExecutionHandle,

crates/worker-runtime/src/fs_store.rs

@@ -1,14 +1,13 @@
 use crate::catalog::{CreateWorkerRequest, WorkerStatus};
 use crate::config_bundle::ConfigBundle;
-use crate::diagnostics::RuntimeDiagnostic;
+use crate::diagnostics::{DiagnosticSeverity, RuntimeDiagnostic};
 use crate::error::RuntimeError;
 use crate::execution::WorkerExecutionStatus;
 use crate::identity::{RuntimeId, WorkerId, WorkerRef};
 use crate::management::{RuntimeBackendKind, RuntimeLimits, RuntimeStatus};
-use crate::observation::{
+#[cfg(feature = "ws-server")]
-    EventCursor, RuntimeEvent, RuntimeEventBatch, TranscriptEntry, TranscriptProjection,
+use crate::observation::WorkerObservationEvent;
-    TranscriptQuery,
+use crate::observation::{EventCursor, RuntimeEvent, RuntimeEventBatch};
-};
 use serde::{Deserialize, Serialize};
 use std::collections::BTreeMap;
 use std::fs::{self, File, OpenOptions};
@@ -22,7 +21,8 @@ const RUNTIME_FILE: &str = "runtime.json";
 const EVENTS_FILE: &str = "events.jsonl";
 const WORKERS_DIR: &str = "workers";
 const WORKER_FILE: &str = "worker.json";
-const TRANSCRIPT_FILE: &str = "transcript.jsonl";
+#[cfg(feature = "ws-server")]
+const OBSERVATIONS_FILE: &str = "observations.jsonl";
 
 static NEXT_TMP_SEQUENCE: AtomicU64 = AtomicU64::new(1);
 
@@ -119,42 +119,6 @@ impl FsRuntimeStore {
         })
     }
 
-    /// Read a persisted Worker transcript directly from its Worker-scoped log.
-    pub fn read_transcript(
-        &self,
-        worker_ref: &WorkerRef,
-        query: TranscriptQuery,
-        max_limit: usize,
-    ) -> Result<TranscriptProjection, RuntimeError> {
-        self.ensure_worker_ref(worker_ref)?;
-        if query.limit > max_limit {
-            return Err(RuntimeError::LimitTooLarge {
-                requested: query.limit,
-                max: max_limit,
-            });
-        }
-
-        let path = self.transcript_path(&worker_ref.worker_id);
-        let entries = read_json_lines::<TranscriptEntry>(&path, "read transcript")?;
-        let total_items = entries.len();
-        let end = query.start.saturating_add(query.limit).min(total_items);
-        let items = if query.start >= total_items {
-            Vec::new()
-        } else {
-            entries[query.start..end].to_vec()
-        };
-        let next_start = (end < total_items).then_some(end);
-
-        Ok(TranscriptProjection {
-            worker_ref: worker_ref.clone(),
-            start: query.start,
-            limit: query.limit,
-            total_items,
-            items,
-            next_start,
-        })
-    }
-
     pub(crate) fn open_or_create(
         root: PathBuf,
         runtime_id: RuntimeId,
@@ -220,7 +184,12 @@ impl FsRuntimeStore {
             &WorkerSnapshot::from_persisted(worker),
             "write worker snapshot",
         )?;
-        ensure_file_exists(&worker_dir.join(TRANSCRIPT_FILE), "create transcript log")
+        #[cfg(feature = "ws-server")]
+        ensure_file_exists(
+            &worker_dir.join(OBSERVATIONS_FILE),
+            "create observations log",
+        )?;
+        Ok(())
     }
 
     pub(crate) fn append_event(&self, event: &RuntimeEvent) -> Result<(), RuntimeError> {
@@ -230,21 +199,22 @@ impl FsRuntimeStore {
         append_json_line(&self.events_path(), event, "append event")
     }
 
-    pub(crate) fn append_transcript_entry(
+    #[cfg(feature = "ws-server")]
+    pub(crate) fn append_worker_observation_event(
         &self,
-        entry: &TranscriptEntry,
+        event: &WorkerObservationEvent,
     ) -> Result<(), RuntimeError> {
-        self.ensure_worker_ref(&entry.worker_ref)?;
+        self.ensure_worker_ref(&event.worker_ref)?;
         append_json_line(
-            &self.transcript_path(&entry.worker_ref.worker_id),
+            &self.observations_path(&event.worker_ref.worker_id),
-            entry,
+            event,
-            "append transcript",
+            "append worker observation",
         )
     }
 
     pub(crate) fn load_runtime_state(&self) -> Result<PersistedRuntimeState, RuntimeError> {
         let runtime_path = self.runtime_path();
-        let snapshot: RuntimeSnapshot = read_json(&runtime_path, "read runtime snapshot")?;
+        let mut snapshot: RuntimeSnapshot = read_json(&runtime_path, "read runtime snapshot")?;
         snapshot.validate(&self.runtime_id, &runtime_path)?;
 
         let events = read_json_lines::<RuntimeEvent>(&self.events_path(), "read events")?;
@@ -278,45 +248,99 @@ impl FsRuntimeStore {
             })?;
         worker_dirs.sort_by_key(|entry| entry.path());
 
+        #[cfg(feature = "ws-server")]
+        let mut observation_events = Vec::new();
+
         for entry in worker_dirs {
             let path = entry.path();
             if !path.is_dir() {
-                return Err(RuntimeError::StoreCorrupt {
+                record_worker_load_diagnostic(
-                    operation: "read worker",
+                    &mut snapshot,
-                    path,
+                    None,
-                    message: "worker path exists but is not a directory".to_string(),
+                    "ignored invalid worker store entry while loading runtime store",
-                });
+                );
+                continue;
             }
             let worker_snapshot_path = path.join(WORKER_FILE);
             let worker_snapshot: WorkerSnapshot =
-                read_json(&worker_snapshot_path, "read worker snapshot")?;
+                match read_json(&worker_snapshot_path, "read worker snapshot") {
-            worker_snapshot.validate(&self.runtime_id, &worker_snapshot_path)?;
+                    Ok(snapshot) => snapshot,
-            let transcript =
+                    Err(_error) => {
-                read_json_lines::<TranscriptEntry>(&path.join(TRANSCRIPT_FILE), "read transcript")?;
+                        record_worker_load_diagnostic(
-            for entry in &transcript {
+                            &mut snapshot,
-                self.ensure_worker_ref(&entry.worker_ref)?;
+                            None,
-                if entry.worker_ref.worker_id != worker_snapshot.worker_id {
+                            "ignored corrupt worker snapshot while loading runtime store",
-                    return Err(RuntimeError::StoreCorrupt {
+                        );
-                        operation: "read transcript",
+                        continue;
-                        path: path.join(TRANSCRIPT_FILE),
+                    }
-                        message: format!(
+                };
-                            "transcript entry belongs to worker {}, expected {}",
+            if worker_snapshot
-                            entry.worker_ref.worker_id, worker_snapshot.worker_id
+                .validate(&self.runtime_id, &worker_snapshot_path)
-                        ),
+                .is_err()
-                    });
+            {
+                record_worker_load_diagnostic(
+                    &mut snapshot,
+                    Some(worker_snapshot.worker_ref.clone()),
+                    "ignored invalid worker snapshot while loading runtime store",
+                );
+                continue;
+            }
+            #[cfg(feature = "ws-server")]
+            let worker_observations = match read_json_lines::<WorkerObservationEvent>(
+                &path.join(OBSERVATIONS_FILE),
+                "read worker observations",
+            ) {
+                Ok(events) => events,
+                Err(_error) => {
+                    record_worker_load_diagnostic(
+                        &mut snapshot,
+                        Some(worker_snapshot.worker_ref.clone()),
+                        "ignored worker with unreadable observations while loading runtime store",
+                    );
+                    continue;
+                }
+            };
+            #[cfg(feature = "ws-server")]
+            let mut observations_valid = true;
+            #[cfg(feature = "ws-server")]
+            for event in &worker_observations {
+                if self.ensure_worker_ref(&event.worker_ref).is_err()
+                    || event.worker_ref.worker_id != worker_snapshot.worker_id
+                {
+                    observations_valid = false;
+                    break;
                 }
             }
-            let worker = worker_snapshot.into_persisted(transcript);
+            #[cfg(feature = "ws-server")]
+            if !observations_valid {
+                record_worker_load_diagnostic(
+                    &mut snapshot,
+                    Some(worker_snapshot.worker_ref.clone()),
+                    "ignored worker with invalid observations while loading runtime store",
+                );
+                continue;
+            }
+            #[cfg(feature = "ws-server")]
+            observation_events.extend(worker_observations);
+            let worker = worker_snapshot.into_persisted();
             if workers.insert(worker.worker_id.clone(), worker).is_some() {
-                return Err(RuntimeError::StoreCorrupt {
+                record_worker_load_diagnostic(
-                    operation: "read workers",
+                    &mut snapshot,
-                    path: workers_dir.clone(),
+                    None,
-                    message: "duplicate worker id in store".to_string(),
+                    "ignored duplicate worker snapshot while loading runtime store",
-                });
+                );
             }
         }
 
-        Ok(snapshot.into_persisted(events, workers))
+        #[cfg(feature = "ws-server")]
+        observation_events.sort_by_key(|event| event.sequence);
+
+        Ok(snapshot.into_persisted(
+            events,
+            workers,
+            #[cfg(feature = "ws-server")]
+            observation_events,
+        ))
     }
 
     fn ensure_worker_ref(&self, worker_ref: &WorkerRef) -> Result<(), RuntimeError> {
@@ -345,8 +369,9 @@ impl FsRuntimeStore {
             .join(encoded_component(worker_id.as_str()))
     }
 
-    fn transcript_path(&self, worker_id: &WorkerId) -> PathBuf {
+    #[cfg(feature = "ws-server")]
-        self.worker_dir(worker_id).join(TRANSCRIPT_FILE)
+    fn observations_path(&self, worker_id: &WorkerId) -> PathBuf {
+        self.worker_dir(worker_id).join(OBSERVATIONS_FILE)
     }
 }
 
@@ -368,6 +393,8 @@ pub(crate) struct PersistedRuntimeState {
     pub(crate) workers: BTreeMap<WorkerId, PersistedWorkerRecord>,
     pub(crate) config_bundles: BTreeMap<String, ConfigBundle>,
     pub(crate) events: Vec<RuntimeEvent>,
+    #[cfg(feature = "ws-server")]
+    pub(crate) observation_events: Vec<WorkerObservationEvent>,
     pub(crate) diagnostics: Vec<RuntimeDiagnostic>,
 }
 
@@ -378,8 +405,6 @@ pub(crate) struct PersistedWorkerRecord {
     pub(crate) status: WorkerStatus,
     pub(crate) request: CreateWorkerRequest,
     pub(crate) execution: WorkerExecutionStatus,
-    pub(crate) transcript: Vec<TranscriptEntry>,
-    pub(crate) next_transcript_sequence: u64,
     pub(crate) last_event_id: u64,
 }
 
@@ -399,6 +424,22 @@ struct RuntimeSnapshot {
     diagnostics: Vec<RuntimeDiagnostic>,
 }
 
+fn record_worker_load_diagnostic(
+    snapshot: &mut RuntimeSnapshot,
+    worker_ref: Option<WorkerRef>,
+    message: impl Into<String>,
+) {
+    let id = snapshot.next_diagnostic_id;
+    snapshot.next_diagnostic_id = snapshot.next_diagnostic_id.saturating_add(1);
+    snapshot.diagnostics.push(RuntimeDiagnostic {
+        id,
+        worker_ref,
+        severity: DiagnosticSeverity::Warning,
+        code: "worker_snapshot_ignored".to_string(),
+        message: message.into(),
+    });
+}
+
 impl RuntimeSnapshot {
     fn from_persisted(state: &PersistedRuntimeState) -> Self {
         Self {
@@ -451,6 +492,7 @@ impl RuntimeSnapshot {
         self,
         events: Vec<RuntimeEvent>,
         workers: BTreeMap<WorkerId, PersistedWorkerRecord>,
+        #[cfg(feature = "ws-server")] observation_events: Vec<WorkerObservationEvent>,
     ) -> PersistedRuntimeState {
         PersistedRuntimeState {
             runtime_id: self.runtime_id,
@@ -463,6 +505,8 @@ impl RuntimeSnapshot {
             workers,
             config_bundles: self.config_bundles,
             events,
+            #[cfg(feature = "ws-server")]
+            observation_events,
             diagnostics: self.diagnostics,
         }
     }
@@ -477,7 +521,6 @@ struct WorkerSnapshot {
     request: CreateWorkerRequest,
     #[serde(default = "WorkerExecutionStatus::unconnected")]
     execution: WorkerExecutionStatus,
-    next_transcript_sequence: u64,
     last_event_id: u64,
 }
 
@@ -490,7 +533,6 @@ impl WorkerSnapshot {
             status: worker.status,
             request: worker.request.clone(),
             execution: worker.execution.clone(),
-            next_transcript_sequence: worker.next_transcript_sequence,
             last_event_id: worker.last_event_id,
         }
     }
@@ -529,15 +571,13 @@ impl WorkerSnapshot {
         Ok(())
     }
 
-    fn into_persisted(self, transcript: Vec<TranscriptEntry>) -> PersistedWorkerRecord {
+    fn into_persisted(self) -> PersistedWorkerRecord {
         PersistedWorkerRecord {
             worker_ref: self.worker_ref,
             worker_id: self.worker_id,
             status: self.status,
             request: self.request,
             execution: self.execution,
-            transcript,
-            next_transcript_sequence: self.next_transcript_sequence,
             last_event_id: self.last_event_id,
         }
     }

crates/worker-runtime/src/http_server.rs

@@ -9,6 +9,7 @@
 use crate::Runtime;
 use crate::catalog::{
     ConfigBundleRef, CreateWorkerRequest, WorkerDetail, WorkerLifecycleAck, WorkerSummary,
+    WorkingDirectoryRequest, WorkingDirectoryStatus,
 };
 use crate::config_bundle::{ConfigBundle, ConfigBundleAvailability, ConfigBundleSummary};
 use crate::error::RuntimeError;
@@ -17,7 +18,6 @@ use crate::interaction::{WorkerInput, WorkerInteractionAck};
 use crate::management::{RuntimeLimits, RuntimeSummary};
 #[cfg(feature = "ws-server")]
 use crate::observation::WorkerObservationCursor;
-use crate::observation::{TranscriptProjection, TranscriptQuery};
 use axum::body::{Body, Bytes};
 use axum::extract::rejection::{JsonRejection, QueryRejection};
 #[cfg(feature = "ws-server")]
@@ -138,15 +138,19 @@ pub fn runtime_http_router(runtime: Runtime, local_token: Option<String>) -> Rou
             "/v1/config-bundles/{bundle_id}/availability",
             get(check_config_bundle),
         )
+        .route(
+            "/v1/working-directories",
+            get(list_working_directories).post(create_working_directory),
+        )
+        .route(
+            "/v1/working-directories/{working_directory_id}",
+            get(get_working_directory).delete(cleanup_working_directory),
+        )
         .route("/v1/workers", get(list_workers).post(create_worker))
         .route("/v1/workers/{worker_id}", get(get_worker))
         .route("/v1/workers/{worker_id}/input", post(send_worker_input))
         .route("/v1/workers/{worker_id}/stop", post(stop_worker))
-        .route("/v1/workers/{worker_id}/cancel", post(cancel_worker))
+        .route("/v1/workers/{worker_id}/cancel", post(cancel_worker));
-        .route(
-            "/v1/workers/{worker_id}/transcript",
-            get(get_worker_transcript),
-        );
 
     #[cfg(feature = "ws-server")]
     let router = router.route("/v1/workers/{worker_id}/events/ws", get(worker_events_ws));
@@ -197,6 +201,18 @@ pub struct RuntimeHttpWorkersResponse {
     pub workers: Vec<WorkerSummary>,
 }
 
+/// `GET /v1/working-directories` response.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct RuntimeHttpWorkingDirectoriesResponse {
+    pub working_directories: Vec<WorkingDirectoryStatus>,
+}
+
+/// Working directory response used by create/detail/delete endpoints.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub struct RuntimeHttpWorkingDirectoryResponse {
+    pub working_directory: WorkingDirectoryStatus,
+}
+
 /// Worker detail response used by create/detail endpoints.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeHttpWorkerResponse {
@@ -222,12 +238,6 @@ pub struct RuntimeHttpWorkerLifecycleResponse {
     pub ack: WorkerLifecycleAck,
 }
 
-/// `GET /v1/workers/{worker_id}/transcript` response.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-pub struct RuntimeHttpTranscriptResponse {
-    pub transcript: TranscriptProjection,
-}
-
 /// Typed REST error response.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeHttpErrorResponse {
@@ -278,18 +288,6 @@ struct RuntimeWorkerEventsWsQuery {
     cursor: Option<String>,
 }
 
-#[derive(Clone, Debug, Deserialize)]
-struct RuntimeHttpTranscriptQuery {
-    #[serde(default)]
-    start: usize,
-    #[serde(default = "default_transcript_limit")]
-    limit: usize,
-}
-
-fn default_transcript_limit() -> usize {
-    256
-}
-
 #[cfg(feature = "ws-server")]
 impl RuntimeWorkerEventWsFrame {
     fn event(
@@ -399,6 +397,58 @@ async fn list_workers(
     Ok(Json(RuntimeHttpWorkersResponse { workers }))
 }
 
+async fn list_working_directories(
+    State(state): State<RuntimeHttpState>,
+) -> RestResult<RuntimeHttpWorkingDirectoriesResponse> {
+    let working_directories = state
+        .runtime
+        .list_working_directories()
+        .map_err(RuntimeHttpRestError::runtime)?;
+    Ok(Json(RuntimeHttpWorkingDirectoriesResponse {
+        working_directories,
+    }))
+}
+
+async fn create_working_directory(
+    State(state): State<RuntimeHttpState>,
+    body: Result<Json<WorkingDirectoryRequest>, JsonRejection>,
+) -> RestResult<RuntimeHttpWorkingDirectoryResponse> {
+    let Json(request) = body.map_err(RuntimeHttpRestError::json_rejection)?;
+    let working_directory = state
+        .runtime
+        .create_working_directory(request)
+        .map_err(RuntimeHttpRestError::runtime)?;
+    Ok(Json(RuntimeHttpWorkingDirectoryResponse {
+        working_directory,
+    }))
+}
+
+async fn get_working_directory(
+    State(state): State<RuntimeHttpState>,
+    Path(working_directory_id): Path<String>,
+) -> RestResult<RuntimeHttpWorkingDirectoryResponse> {
+    let working_directory = state
+        .runtime
+        .working_directory(&working_directory_id)
+        .map_err(RuntimeHttpRestError::runtime)?;
+    Ok(Json(RuntimeHttpWorkingDirectoryResponse {
+        working_directory,
+    }))
+}
+
+async fn cleanup_working_directory(
+    State(state): State<RuntimeHttpState>,
+    Path(working_directory_id): Path<String>,
+) -> RestResult<RuntimeHttpWorkingDirectoryResponse> {
+    let working_directory = state
+        .runtime
+        .cleanup_working_directory(&working_directory_id)
+        .map_err(RuntimeHttpRestError::runtime)?;
+    Ok(Json(RuntimeHttpWorkingDirectoryResponse {
+        working_directory,
+    }))
+}
+
 async fn get_worker(
     State(state): State<RuntimeHttpState>,
     Path(worker_id): Path<String>,
@@ -641,20 +691,6 @@ async fn cancel_worker(
     Ok(Json(RuntimeHttpWorkerLifecycleResponse { ack }))
 }
 
-async fn get_worker_transcript(
-    State(state): State<RuntimeHttpState>,
-    Path(worker_id): Path<String>,
-    query: Result<Query<RuntimeHttpTranscriptQuery>, QueryRejection>,
-) -> RestResult<RuntimeHttpTranscriptResponse> {
-    let worker_ref = worker_ref_for(&state.runtime, worker_id)?;
-    let Query(query) = query.map_err(RuntimeHttpRestError::query_rejection)?;
-    let transcript = state
-        .runtime
-        .transcript_projection(&worker_ref, TranscriptQuery::new(query.start, query.limit))
-        .map_err(RuntimeHttpRestError::runtime)?;
-    Ok(Json(RuntimeHttpTranscriptResponse { transcript }))
-}
-
 fn worker_ref_for(runtime: &Runtime, worker_id: String) -> Result<WorkerRef, RuntimeHttpRestError> {
     let worker_id = WorkerId::new(worker_id).ok_or_else(|| {
         RuntimeHttpRestError::new(
@@ -860,10 +896,27 @@ mod tests {
         let bundle = test_bundle(profile.clone());
         CreateWorkerRequest {
             profile,
-            config_bundle: ConfigBundleRef {
+            profile_source: crate::catalog::ProfileSourceArchiveSource::Http {
+                location: crate::catalog::ProfileSourceArchiveHttpRef {
+                    url: "http://127.0.0.1/profile-source.tar".to_string(),
+                    etag: None,
+                    archive: crate::profile_archive::ProfileSourceArchiveRef {
+                        id: "test-profile-source".to_string(),
+                        digest: "test-digest".to_string(),
+                        size_bytes: 0,
+                        source_graph: crate::profile_archive::ProfileSourceGraphSummary {
+                            source_count: 0,
+                            total_source_bytes: 0,
+                            entrypoints: std::collections::BTreeMap::new(),
+                            import_count: 0,
+                        },
+                    },
+                },
+            },
+            config_bundle: Some(ConfigBundleRef {
                 id: bundle.metadata.id,
                 digest: bundle.metadata.digest,
-            },
+            }),
             initial_input: None,
             working_directory_request: None,
             working_directory: None,
@@ -977,8 +1030,7 @@ mod tests {
         )
         .await;
         assert_eq!(response.status(), StatusCode::OK);
-        let input_ack: RuntimeHttpWorkerInputResponse = read_json(response).await;
+        let _input_ack: RuntimeHttpWorkerInputResponse = read_json(response).await;
-        assert_eq!(input_ack.ack.transcript_sequence, 1);
 
         let response = empty_request(
             app.clone(),
@@ -987,21 +1039,15 @@ mod tests {
         )
         .await;
         assert_eq!(response.status(), StatusCode::OK);
-        let detail: RuntimeHttpWorkerResponse = read_json(response).await;
+        let _detail: RuntimeHttpWorkerResponse = read_json(response).await;
-        assert_eq!(detail.worker.transcript_len, 1);
 
         let response = empty_request(
             app.clone(),
             Method::GET,
-            &format!(
+            &format!("/v1/workers/{}/transcript", created.worker.worker_id),
-                "/v1/workers/{}/transcript?start=0&limit=1",
-                created.worker.worker_id
-            ),
         )
         .await;
-        assert_eq!(response.status(), StatusCode::OK);
+        assert_eq!(response.status(), StatusCode::NOT_FOUND);
-        let transcript: RuntimeHttpTranscriptResponse = read_json(response).await;
-        assert_eq!(transcript.transcript.items[0].content, "hello from backend");
 
         let response = empty_request(
             app.clone(),
@@ -1027,7 +1073,6 @@ mod tests {
         assert_eq!(response.status(), StatusCode::OK);
         let workers: RuntimeHttpWorkersResponse = read_json(response).await;
         assert_eq!(workers.workers.len(), 1);
-        assert_eq!(workers.workers[0].transcript_len, 1);
 
         let response = empty_request(app, Method::GET, "/v1/runtime").await;
         assert_eq!(response.status(), StatusCode::OK);
@@ -1147,10 +1192,27 @@ mod ws_tests {
         let bundle = ws_test_bundle(ProfileSelector::RuntimeDefault);
         CreateWorkerRequest {
             profile: ProfileSelector::RuntimeDefault,
-            config_bundle: ConfigBundleRef {
+            profile_source: crate::catalog::ProfileSourceArchiveSource::Http {
+                location: crate::catalog::ProfileSourceArchiveHttpRef {
+                    url: "http://127.0.0.1/profile-source.tar".to_string(),
+                    etag: None,
+                    archive: crate::profile_archive::ProfileSourceArchiveRef {
+                        id: "test-profile-source".to_string(),
+                        digest: "test-digest".to_string(),
+                        size_bytes: 0,
+                        source_graph: crate::profile_archive::ProfileSourceGraphSummary {
+                            source_count: 0,
+                            total_source_bytes: 0,
+                            entrypoints: std::collections::BTreeMap::new(),
+                            import_count: 0,
+                        },
+                    },
+                },
+            },
+            config_bundle: Some(ConfigBundleRef {
                 id: bundle.metadata.id,
                 digest: bundle.metadata.digest,
-            },
+            }),
             initial_input: None,
             working_directory_request: None,
             working_directory: None,

crates/worker-runtime/src/interaction.rs

@@ -10,8 +10,7 @@ pub enum WorkerInputKind {
     System,
 }
 
-/// Worker input request.  v0 stores the input in an in-memory transcript and
+/// Worker input request accepted by a Runtime Worker.
-/// does not execute providers/tools.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct WorkerInput {
     pub kind: WorkerInputKind,
@@ -34,11 +33,10 @@ impl WorkerInput {
     }
 }
 
-/// Acknowledgement returned after input is accepted into the in-memory Worker.
+/// Acknowledgement returned after input is accepted into the Worker.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct WorkerInteractionAck {
     pub worker_ref: WorkerRef,
     pub status: WorkerStatus,
-    pub transcript_sequence: u64,
     pub event_id: u64,
 }

crates/worker-runtime/src/main.rs

@@ -123,10 +123,16 @@ fn working_directory_runtime_root(config: &ProcessConfig) -> PathBuf {
         _ => config
             .worker_runtime_base_dir
             .clone()
-            .unwrap_or_else(|| env::temp_dir().join("yoi-worker-runtime")),
+            .unwrap_or_else(default_working_directory_runtime_root),
     }
 }
 
+fn default_working_directory_runtime_root() -> PathBuf {
+    manifest::paths::data_dir()
+        .map(|data_dir| data_dir.join("worker-runtime"))
+        .unwrap_or_else(|| env::temp_dir().join("yoi-worker-runtime"))
+}
+
 fn runtime_options_from_http(config: &RuntimeHttpServerConfig) -> RuntimeOptions {
     RuntimeOptions {
         runtime_id: config.runtime_id.clone(),
@@ -232,10 +238,6 @@ where
                 }
                 config.http.local_token = Some(value);
             }
-            "--max-transcript-projection-items" => {
-                config.http.limits.max_transcript_projection_items =
-                    parse_usize_flag(&flag, take_value(&flag, inline_value, &mut args)?)?;
-            }
             "--max-event-batch-items" => {
                 config.http.limits.max_event_batch_items =
                     parse_usize_flag(&flag, take_value(&flag, inline_value, &mut args)?)?;
@@ -430,7 +432,6 @@ Options:\n\
   --fs-root <PATH>                      Runtime catalog filesystem store root\n\
   --local-token <TOKEN>                 Minimal local bearer token placeholder\n\
   --local-token-env <ENV>               Read local bearer token placeholder from env\n\
-  --max-transcript-projection-items <N> Override transcript projection limit\n\
   --max-event-batch-items <N>           Override event batch limit\n\
   -h, --help                            Show this help"
 }

crates/worker-runtime/src/management.rs

@@ -18,17 +18,15 @@ pub enum RuntimeStatus {
     Stopped,
 }
 
-/// Guardrails for bounded observation/projection APIs.
+/// Guardrails for bounded Runtime APIs.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeLimits {
-    pub max_transcript_projection_items: usize,
     pub max_event_batch_items: usize,
 }
 
 impl Default for RuntimeLimits {
     fn default() -> Self {
         Self {
-            max_transcript_projection_items: 256,
             max_event_batch_items: 256,
         }
     }

crates/worker-runtime/src/observation.rs

@@ -1,49 +1,6 @@
 use crate::identity::{RuntimeId, WorkerRef};
 use serde::{Deserialize, Serialize};
 
-/// Transcript role used by bounded projection.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(rename_all = "snake_case")]
-pub enum TranscriptRole {
-    User,
-    Assistant,
-    System,
-}
-
-/// One projected transcript item.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-pub struct TranscriptEntry {
-    pub sequence: u64,
-    pub worker_ref: WorkerRef,
-    pub role: TranscriptRole,
-    pub content: String,
-    pub event_id: u64,
-}
-
-/// Bounded transcript query.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-pub struct TranscriptQuery {
-    pub start: usize,
-    pub limit: usize,
-}
-
-impl TranscriptQuery {
-    pub fn new(start: usize, limit: usize) -> Self {
-        Self { start, limit }
-    }
-}
-
-/// Bounded transcript projection response.
-#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-pub struct TranscriptProjection {
-    pub worker_ref: WorkerRef,
-    pub start: usize,
-    pub limit: usize,
-    pub total_items: usize,
-    pub items: Vec<TranscriptEntry>,
-    pub next_start: Option<usize>,
-}
-
 /// Event cursor.  `next_event_id` is the first event id that should be returned
 /// by the next poll.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]

crates/worker-runtime/src/profile_archive.rs

@@ -2,7 +2,7 @@ use decodal::{Engine, LoadedSource, SourceLoader};
 use manifest::{ProfileSource, WorkerManifest, resolve_profile_artifact_value};
 use serde::{Deserialize, Serialize};
 use sha2::{Digest, Sha256};
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, BTreeSet};
 use std::io::{Cursor, Read, Write};
 use std::path::{Component, Path, PathBuf};
 use tar::{Archive, Builder, Header};
@@ -27,6 +27,10 @@ pub enum ProfileArchiveError {
     MissingManifest,
     #[error("profile source archive missing source {0}")]
     MissingSource(String),
+    #[error("profile source archive contains duplicate source {0}")]
+    DuplicateSource(String),
+    #[error("profile source archive contains source not declared in manifest {0}")]
+    UndeclaredSource(String),
     #[error(
         "profile source archive source digest mismatch for {path}: expected {expected}, got {actual}"
     )]
@@ -47,6 +51,14 @@ pub enum ProfileArchiveError {
     MissingEntrypoint(String),
     #[error("profile source archive import is not declared in manifest import map: {0}")]
     ImportNotDeclared(String),
+    #[error(
+        "profile source archive import map mismatch for {specifier}: expected {expected}, got {actual}"
+    )]
+    ImportMapMismatch {
+        specifier: String,
+        expected: String,
+        actual: String,
+    },
     #[error("failed to read profile source archive: {0}")]
     Io(String),
     #[error("failed to parse profile source archive manifest: {0}")]
@@ -94,7 +106,11 @@ pub struct ProfileSourceArchiveManifest {
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
 pub struct ProfileSourceArchiveSource {
     pub path: String,
+    #[serde(default)]
+    pub source_key: String,
     pub kind: String,
+    #[serde(default = "default_decodal_content_type")]
+    pub content_type: String,
     pub digest: String,
     pub size_bytes: u64,
 }
@@ -128,7 +144,9 @@ impl ProfileSourceArchive {
             }
             source_meta.push(ProfileSourceArchiveSource {
                 path: path.clone(),
+                source_key: path.clone(),
                 kind: "decodal".to_string(),
+                content_type: default_decodal_content_type(),
                 digest: sha256_hex(source.as_bytes()),
                 size_bytes: size,
             });
@@ -238,7 +256,9 @@ impl VerifiedProfileSourceArchive {
             } else {
                 let source = String::from_utf8(data)
                     .map_err(|err| ProfileArchiveError::Io(err.to_string()))?;
-                entries.insert(path, source);
+                if entries.insert(path.clone(), source).is_some() {
+                    return Err(ProfileArchiveError::DuplicateSource(path));
+                }
             }
             if entries.len() > MAX_SOURCES {
                 return Err(ProfileArchiveError::LimitExceeded("source count"));
@@ -258,8 +278,25 @@ impl VerifiedProfileSourceArchive {
             });
         }
         let mut total = 0u64;
+        let mut manifest_paths = BTreeSet::new();
         for source in &manifest.sources {
             validate_archive_path(&source.path)?;
+            if !source.source_key.is_empty() && source.source_key != source.path {
+                return Err(ProfileArchiveError::ImportMapMismatch {
+                    specifier: source.path.clone(),
+                    expected: source.path.clone(),
+                    actual: source.source_key.clone(),
+                });
+            }
+            if source.content_type != default_decodal_content_type() {
+                return Err(ProfileArchiveError::UnsupportedSource {
+                    path: source.path.clone(),
+                    kind: source.content_type.clone(),
+                });
+            }
+            if !manifest_paths.insert(source.path.clone()) {
+                return Err(ProfileArchiveError::DuplicateSource(source.path.clone()));
+            }
             if source.kind != "decodal" {
                 return Err(ProfileArchiveError::UnsupportedSource {
                     path: source.path.clone(),
@@ -285,6 +322,11 @@ impl VerifiedProfileSourceArchive {
             }
             total += size;
         }
+        for entry_path in entries.keys() {
+            if !manifest_paths.contains(entry_path) {
+                return Err(ProfileArchiveError::UndeclaredSource(entry_path.clone()));
+            }
+        }
         if total != reference.source_graph.total_source_bytes
             || manifest.sources.len() != reference.source_graph.source_count
         {
@@ -298,10 +340,13 @@ impl VerifiedProfileSourceArchive {
             .chain(manifest.imports.values())
         {
             validate_archive_path(path)?;
-            if !entries.contains_key(path) {
+            if !manifest_paths.contains(path) || !entries.contains_key(path) {
                 return Err(ProfileArchiveError::MissingSource(path.clone()));
             }
         }
+        for (key, path) in &manifest.imports {
+            validate_archive_import_map_entry(key, path, &manifest_paths)?;
+        }
         Ok(Self {
             reference,
             manifest,
@@ -313,6 +358,10 @@ impl VerifiedProfileSourceArchive {
         &self.reference
     }
 
+    pub fn manifest(&self) -> &ProfileSourceArchiveManifest {
+        &self.manifest
+    }
+
     pub fn resolve_profile(
         &self,
         selector: &str,
@@ -378,22 +427,26 @@ impl<'a> ArchiveSourceLoader<'a> {
 impl SourceLoader for ArchiveSourceLoader<'_> {
     fn load(
         &mut self,
-        _current_key: Option<&str>,
+        current_key: Option<&str>,
         specifier: &str,
     ) -> decodal::Result<LoadedSource> {
-        let path = self
+        let path =
-            .archive
+            archive_import_map_lookup(&self.archive.manifest.imports, current_key, specifier)
-            .manifest
+                .map_err(import_diagnostic)?;
-            .imports
+        if let Some(current_key) = current_key {
-            .get(specifier)
+            match resolve_archive_import_path(current_key, specifier) {
-            .ok_or_else(|| {
+                Ok(expected) if expected == path => {}
-                decodal::Diagnostic::new(
+                Ok(expected) => {
-                    decodal::DiagnosticKind::Import,
+                    return Err(import_diagnostic(ProfileArchiveError::ImportMapMismatch {
-                    decodal::Span::default(),
+                        specifier: format!("{current_key}\0{specifier}"),
-                    format!("archive import not declared: {specifier}"),
+                        expected,
-                )
+                        actual: path.clone(),
-            })?;
+                    }));
-        let source = self.archive.sources.get(path).ok_or_else(|| {
+                }
+                Err(err) => return Err(import_diagnostic(err)),
+            }
+        }
+        let source = self.archive.sources.get(&path).ok_or_else(|| {
             decodal::Diagnostic::new(
                 decodal::DiagnosticKind::Import,
                 decodal::Span::default(),
@@ -408,6 +461,123 @@ impl SourceLoader for ArchiveSourceLoader<'_> {
     }
 }
 
+fn default_decodal_content_type() -> String {
+    "text/x-decodal".to_string()
+}
+
+fn import_diagnostic(err: ProfileArchiveError) -> decodal::Diagnostic {
+    decodal::Diagnostic::new(
+        decodal::DiagnosticKind::Import,
+        decodal::Span::default(),
+        err.to_string(),
+    )
+}
+
+fn archive_import_map_lookup(
+    imports: &BTreeMap<String, String>,
+    current_key: Option<&str>,
+    specifier: &str,
+) -> Result<String, ProfileArchiveError> {
+    if let Some(current_key) = current_key {
+        let scoped = format!("{current_key}\0{specifier}");
+        if let Some(path) = imports.get(&scoped) {
+            return Ok(path.clone());
+        }
+    }
+    imports
+        .get(specifier)
+        .cloned()
+        .ok_or_else(|| ProfileArchiveError::ImportNotDeclared(specifier.to_string()))
+}
+
+fn validate_archive_import_map_entry(
+    key: &str,
+    path: &str,
+    manifest_paths: &BTreeSet<String>,
+) -> Result<(), ProfileArchiveError> {
+    if !manifest_paths.contains(path) {
+        return Err(ProfileArchiveError::MissingSource(path.to_string()));
+    }
+    if let Some((current_key, specifier)) = key.split_once('\0') {
+        validate_archive_path(current_key)?;
+        let expected = resolve_archive_import_path(current_key, specifier)?;
+        if expected != path {
+            return Err(ProfileArchiveError::ImportMapMismatch {
+                specifier: key.to_string(),
+                expected,
+                actual: path.to_string(),
+            });
+        }
+    } else {
+        validate_archive_import_specifier(key)?;
+    }
+    Ok(())
+}
+
+fn resolve_archive_import_path(
+    current_key: &str,
+    specifier: &str,
+) -> Result<String, ProfileArchiveError> {
+    validate_archive_path(current_key)?;
+    validate_archive_import_specifier(specifier)?;
+    let raw = if let Some(rest) = specifier.strip_prefix("project:") {
+        rest
+    } else if let Some(rest) = specifier.strip_prefix("workspace:") {
+        rest
+    } else {
+        specifier
+    };
+    let base = if raw.starts_with("./") || raw.starts_with("../") {
+        Path::new(current_key)
+            .parent()
+            .map(Path::to_path_buf)
+            .unwrap_or_default()
+            .join(raw)
+    } else {
+        PathBuf::from(raw)
+    };
+    normalize_archive_virtual_path(&base.to_string_lossy())
+}
+
+fn validate_archive_import_specifier(specifier: &str) -> Result<(), ProfileArchiveError> {
+    if specifier.is_empty()
+        || specifier.contains("://")
+        || specifier.starts_with('/')
+        || Path::new(specifier).is_absolute()
+    {
+        return Err(ProfileArchiveError::UnsafePath(specifier.to_string()));
+    }
+    if let Some((namespace, rest)) = specifier.split_once(':') {
+        if namespace != "project" && namespace != "workspace" {
+            return Err(ProfileArchiveError::UnsafePath(specifier.to_string()));
+        }
+        if rest.is_empty() || rest.starts_with('/') || rest.contains("://") {
+            return Err(ProfileArchiveError::UnsafePath(specifier.to_string()));
+        }
+    }
+    Ok(())
+}
+
+fn normalize_archive_virtual_path(path: &str) -> Result<String, ProfileArchiveError> {
+    let path_ref = Path::new(path);
+    if path_ref.is_absolute() {
+        return Err(ProfileArchiveError::UnsafePath(path.to_string()));
+    }
+    let mut out = PathBuf::new();
+    for component in path_ref.components() {
+        match component {
+            Component::CurDir => {}
+            Component::Normal(value) => out.push(value),
+            Component::ParentDir | Component::RootDir | Component::Prefix(_) => {
+                return Err(ProfileArchiveError::UnsafePath(path.to_string()));
+            }
+        }
+    }
+    let normalized = out.to_string_lossy().replace('\\', "/");
+    validate_archive_path(&normalized)?;
+    Ok(normalized)
+}
+
 fn decodal_data_to_json(data: &decodal::Data) -> serde_json::Value {
     match data {
         decodal::Data::Bool(value) => serde_json::Value::Bool(*value),
@@ -551,4 +721,56 @@ mod tests {
         let mut loader = ArchiveSourceLoader::new(&verified);
         assert!(loader.load(None, "missing").is_err());
     }
+
+    #[test]
+    fn archive_loader_resolves_scoped_virtual_imports() {
+        let mut entrypoints = BTreeMap::new();
+        entrypoints.insert("default".to_string(), "profiles/main.dcdl".to_string());
+        let mut imports = BTreeMap::new();
+        imports.insert(
+            "profiles/main.dcdl\0./shared.dcdl".to_string(),
+            "profiles/shared.dcdl".to_string(),
+        );
+        let mut sources = BTreeMap::new();
+        sources.insert("profiles/main.dcdl".to_string(), "{}".to_string());
+        sources.insert("profiles/shared.dcdl".to_string(), "{}".to_string());
+        let archive = ProfileSourceArchive::build(ProfileSourceArchiveInput {
+            id: "project".to_string(),
+            entrypoints,
+            imports,
+            sources,
+        })
+        .unwrap();
+        let verified = archive.verify().unwrap();
+        let mut loader = ArchiveSourceLoader::new(&verified);
+        let loaded = loader
+            .load(Some("profiles/main.dcdl"), "./shared.dcdl")
+            .unwrap();
+        assert_eq!(loaded.key, "profiles/shared.dcdl");
+    }
+
+    #[test]
+    fn archive_verify_rejects_import_map_that_bypasses_virtual_resolver() {
+        let mut entrypoints = BTreeMap::new();
+        entrypoints.insert("default".to_string(), "profiles/main.dcdl".to_string());
+        let mut imports = BTreeMap::new();
+        imports.insert(
+            "profiles/main.dcdl\0./shared.dcdl".to_string(),
+            "profiles/other.dcdl".to_string(),
+        );
+        let mut sources = BTreeMap::new();
+        sources.insert("profiles/main.dcdl".to_string(), "{}".to_string());
+        sources.insert("profiles/other.dcdl".to_string(), "{}".to_string());
+        let archive = ProfileSourceArchive::build(ProfileSourceArchiveInput {
+            id: "project".to_string(),
+            entrypoints,
+            imports,
+            sources,
+        })
+        .unwrap();
+        assert!(matches!(
+            archive.verify(),
+            Err(ProfileArchiveError::ImportMapMismatch { .. })
+        ));
+    }
 }

crates/worker-runtime/src/runtime.rs

@@ -1,6 +1,7 @@
 use crate::catalog::{
-    ConfigBundleRef, CreateWorkerRequest, ProfileSelector, WorkerDetail, WorkerLifecycleAck,
+    ConfigBundleRef, CreateWorkerRequest, WorkerDetail, WorkerLifecycleAck, WorkerStatus,
-    WorkerStatus, WorkerSummary, WorkingDirectoryStatus as CatalogWorkingDirectoryStatus,
+    WorkerSummary, WorkingDirectoryRequest,
+    WorkingDirectoryStatus as CatalogWorkingDirectoryStatus,
 };
 use crate::config_bundle::{
     ConfigBundle, ConfigBundleAvailability, ConfigBundleSummary, validate_config_bundle,
@@ -27,7 +28,7 @@ use crate::management::{
 };
 use crate::observation::{
     EventCursor, EventSubscription, EventSubscriptionMode, RuntimeEvent, RuntimeEventBatch,
-    RuntimeEventKind, TranscriptEntry, TranscriptProjection, TranscriptQuery, TranscriptRole,
+    RuntimeEventKind,
 };
 #[cfg(feature = "ws-server")]
 use crate::observation::{WorkerObservationCursor, WorkerObservationEvent};
@@ -234,7 +235,80 @@ impl Runtime {
         Ok(event_id)
     }
 
-    /// Create a Worker through the canonical ConfigBundle + execution backend path.
+    /// Create a Runtime-owned working directory through the attached execution backend.
+    pub fn create_working_directory(
+        &self,
+        request: WorkingDirectoryRequest,
+    ) -> Result<CatalogWorkingDirectoryStatus, RuntimeError> {
+        let backend = {
+            let state = self.lock()?;
+            state.ensure_running()?;
+            state.execution_backend.clone().ok_or_else(|| {
+                RuntimeError::ExecutionBackendUnavailable {
+                    message: "working directory creation requires an execution backend".to_string(),
+                }
+            })?
+        };
+        backend
+            .create_working_directory(&request)
+            .map_err(|diagnostic| RuntimeError::InvalidRequest(diagnostic.to_string()))
+    }
+
+    /// List Runtime-owned working directories through the attached execution backend.
+    pub fn list_working_directories(
+        &self,
+    ) -> Result<Vec<CatalogWorkingDirectoryStatus>, RuntimeError> {
+        let backend = {
+            let state = self.lock()?;
+            state.ensure_running()?;
+            state.execution_backend.clone().ok_or_else(|| {
+                RuntimeError::ExecutionBackendUnavailable {
+                    message: "working directory listing requires an execution backend".to_string(),
+                }
+            })?
+        };
+        Ok(backend.list_working_directories())
+    }
+
+    /// Get a Runtime-owned working directory status.
+    pub fn working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<CatalogWorkingDirectoryStatus, RuntimeError> {
+        let backend = {
+            let state = self.lock()?;
+            state.ensure_running()?;
+            state.execution_backend.clone().ok_or_else(|| {
+                RuntimeError::ExecutionBackendUnavailable {
+                    message: "working directory lookup requires an execution backend".to_string(),
+                }
+            })?
+        };
+        backend
+            .working_directory(working_directory_id)
+            .map_err(|diagnostic| RuntimeError::InvalidRequest(diagnostic.to_string()))
+    }
+
+    /// Cleanup a Runtime-owned working directory.
+    pub fn cleanup_working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<CatalogWorkingDirectoryStatus, RuntimeError> {
+        let backend = {
+            let state = self.lock()?;
+            state.ensure_running()?;
+            state.execution_backend.clone().ok_or_else(|| {
+                RuntimeError::ExecutionBackendUnavailable {
+                    message: "working directory cleanup requires an execution backend".to_string(),
+                }
+            })?
+        };
+        backend
+            .cleanup_working_directory(working_directory_id)
+            .map_err(|diagnostic| RuntimeError::InvalidRequest(diagnostic.to_string()))
+    }
+
+    /// Create a Worker through the canonical profile-source + execution backend path.
     pub fn create_worker(
         &self,
         request: CreateWorkerRequest,
@@ -244,13 +318,6 @@ impl Runtime {
             state.ensure_running()?;
             validate_create_worker_request(&request)?;
             state.validate_worker_config_boundary(&request)?;
-            let config_bundle = state
-                .config_bundles
-                .get(&request.config_bundle.id)
-                .cloned()
-                .ok_or_else(|| RuntimeError::ConfigBundleMissing {
-                    bundle_id: request.config_bundle.id.clone(),
-                })?;
             let backend = state.execution_backend.clone().ok_or_else(|| {
                 RuntimeError::ExecutionBackendUnavailable {
                     message: "worker creation requires an execution backend".to_string(),
@@ -266,19 +333,6 @@ impl Runtime {
                 format!("worker {worker_id} created"),
             );
 
-            let mut transcript = Vec::new();
-            let mut next_transcript_sequence = 1;
-            if let Some(input) = request.initial_input.clone() {
-                transcript.push(TranscriptEntry {
-                    sequence: next_transcript_sequence,
-                    worker_ref: worker_ref.clone(),
-                    role: TranscriptRole::User,
-                    content: input.content,
-                    event_id,
-                });
-                next_transcript_sequence += 1;
-            }
-
             let record = WorkerRecord {
                 worker_ref: worker_ref.clone(),
                 worker_id: worker_id.clone(),
@@ -286,8 +340,6 @@ impl Runtime {
                 request: request.clone(),
                 execution: WorkerExecutionStatus::unconnected(),
                 execution_handle: None,
-                transcript,
-                next_transcript_sequence,
                 last_event_id: event_id,
             };
             state.workers.insert(worker_id, record);
@@ -296,7 +348,7 @@ impl Runtime {
                 request,
                 context: self.execution_context(worker_ref.clone()),
                 working_directory: None,
-                config_bundle: Some(config_bundle),
+                config_bundle: None,
             };
             (backend, worker_ref, spawn_request)
         };
@@ -325,7 +377,7 @@ impl Runtime {
             let state = self.lock()?;
             state.worker(&worker_ref)?.request.initial_input.clone()
         } {
-            let dispatch_result = backend.dispatch_input(&handle, initial_input);
+            let dispatch_result = backend.dispatch_input(&handle, initial_input.clone());
             if !dispatch_result.is_accepted() {
                 let _ = backend.stop_worker(&handle);
                 self.rollback_failed_create(&worker_ref)?;
@@ -337,7 +389,7 @@ impl Runtime {
                     result: dispatch_result,
                 });
             }
-            self.commit_created_worker(
+            let detail = self.commit_created_worker(
                 &worker_ref,
                 handle,
                 WorkerExecutionRunState::Busy,
@@ -346,7 +398,9 @@ impl Runtime {
                     WorkerExecutionOperation::Input,
                     WorkerExecutionRunState::Busy,
                 ),
-            )
+            )?;
+            self.record_input_observation(&worker_ref, initial_input)?;
+            Ok(detail)
         } else {
             self.commit_created_worker(
                 &worker_ref,
@@ -375,7 +429,7 @@ impl Runtime {
         Ok(worker.detail(&state.runtime_id))
     }
 
-    /// Accept input into a Worker transcript.
+    /// Accept input into a Worker.
     pub fn send_input(
         &self,
         worker_ref: &WorkerRef,
@@ -435,14 +489,6 @@ impl Runtime {
             "worker input accepted",
         );
         let worker = state.worker_mut(worker_ref)?;
-
-        let input_content = input.content;
-        let role = match input.kind {
-            WorkerInputKind::User => TranscriptRole::User,
-            WorkerInputKind::System => TranscriptRole::System,
-        };
-        let transcript_sequence = worker.next_transcript_sequence;
-        worker.next_transcript_sequence += 1;
         worker.last_event_id = event_id;
         worker.execution = WorkerExecutionStatus {
             backend: WorkerExecutionBackendKind::Connected,
@@ -451,44 +497,24 @@ impl Runtime {
             working_directory: worker.execution.working_directory.clone(),
             last_result: Some(dispatch_result),
         };
-        worker.transcript.push(TranscriptEntry {
-            sequence: transcript_sequence,
-            worker_ref: worker_ref.clone(),
-            role,
-            content: input_content.clone(),
-            event_id,
-        });
 
         let status = worker.status;
         #[cfg(feature = "ws-server")]
-        {
+        let observation = {
-            let payload = match role {
+            let payload = input_protocol_event(&input);
-                TranscriptRole::User => protocol::Event::UserMessage {
+            Some(state.push_worker_observation_event(worker_ref.clone(), payload))
-                    segments: vec![protocol::Segment::Text {
-                        content: input_content.clone(),
-                    }],
-                },
-                TranscriptRole::Assistant => protocol::Event::TextDone {
-                    text: input_content.clone(),
-                },
-                TranscriptRole::System => protocol::Event::SystemItem {
-                    item: serde_json::json!({
-                        "kind": "embedded_worker_system_input",
-                        "content": input_content.clone(),
-                    }),
-                },
         };
-            state.push_worker_observation_event(worker_ref.clone(), payload);
-        }
         state.persist_runtime_snapshot()?;
         state.persist_worker(&worker_ref.worker_id)?;
         state.persist_event_by_id(event_id)?;
-        state.persist_transcript_entry(&worker_ref.worker_id, transcript_sequence)?;
+        #[cfg(feature = "ws-server")]
+        if let Some(observation) = observation.as_ref() {
+            state.persist_worker_observation_event(observation)?;
+        }
 
         Ok(WorkerInteractionAck {
             worker_ref: worker_ref.clone(),
             status,
-            transcript_sequence,
             event_id,
         })
     }
@@ -516,10 +542,6 @@ impl Runtime {
         };
         state.persist_runtime_snapshot()?;
         state.persist_worker(&worker_ref.worker_id)?;
-        let worker = state.worker(worker_ref)?;
-        for entry in &worker.transcript {
-            state.persist_transcript_entry(&worker_ref.worker_id, entry.sequence)?;
-        }
         state.persist_event_by_id(detail.last_event_id)?;
         Ok(detail)
     }
@@ -624,38 +646,6 @@ impl Runtime {
         )
     }
 
-    /// Bounded transcript projection for a Worker.
-    pub fn transcript_projection(
-        &self,
-        worker_ref: &WorkerRef,
-        query: TranscriptQuery,
-    ) -> Result<TranscriptProjection, RuntimeError> {
-        let state = self.lock()?;
-        if query.limit > state.limits.max_transcript_projection_items {
-            return Err(RuntimeError::LimitTooLarge {
-                requested: query.limit,
-                max: state.limits.max_transcript_projection_items,
-            });
-        }
-        let worker = state.worker(worker_ref)?;
-        let total_items = worker.transcript.len();
-        let end = query.start.saturating_add(query.limit).min(total_items);
-        let items = if query.start >= total_items {
-            Vec::new()
-        } else {
-            worker.transcript[query.start..end].to_vec()
-        };
-        let next_start = (end < total_items).then_some(end);
-        Ok(TranscriptProjection {
-            worker_ref: worker_ref.clone(),
-            start: query.start,
-            limit: query.limit,
-            total_items,
-            items,
-            next_start,
-        })
-    }
-
     /// Cursor pointing to the beginning of Runtime events.
     pub fn event_cursor_from_start(&self) -> Result<EventCursor, RuntimeError> {
         let state = self.lock()?;
@@ -813,16 +803,13 @@ impl Runtime {
     ) -> Result<WorkerObservationEvent, RuntimeError> {
         let mut state = self.lock()?;
         state.ensure_worker_ref(worker_ref)?;
-        let transcript_sequence = state.project_protocol_event_to_transcript(worker_ref, &payload);
         let execution_state_changed =
             state.project_protocol_event_to_execution(worker_ref, &payload);
         let event = state.push_worker_observation_event(worker_ref.clone(), payload);
-        if transcript_sequence.is_some() || execution_state_changed {
+        if execution_state_changed {
             state.persist_worker(&worker_ref.worker_id)?;
         }
-        if let Some(sequence) = transcript_sequence {
+        state.persist_worker_observation_event(&event)?;
-            state.persist_transcript_entry(&worker_ref.worker_id, sequence)?;
-        }
         Ok(event)
     }
 
@@ -831,6 +818,29 @@ impl Runtime {
         Ok(self.lock()?.diagnostics.clone())
     }
 
+    #[cfg(feature = "ws-server")]
+    fn record_input_observation(
+        &self,
+        worker_ref: &WorkerRef,
+        input: WorkerInput,
+    ) -> Result<(), RuntimeError> {
+        let mut state = self.lock()?;
+        state.ensure_worker_ref(worker_ref)?;
+        let event =
+            state.push_worker_observation_event(worker_ref.clone(), input_protocol_event(&input));
+        state.persist_worker_observation_event(&event)?;
+        Ok(())
+    }
+
+    #[cfg(not(feature = "ws-server"))]
+    fn record_input_observation(
+        &self,
+        _worker_ref: &WorkerRef,
+        _input: WorkerInput,
+    ) -> Result<(), RuntimeError> {
+        Ok(())
+    }
+
     fn transition_worker(
         &self,
         worker_ref: &WorkerRef,
@@ -1039,13 +1049,22 @@ impl RuntimeState {
                     request: worker.request,
                     execution,
                     execution_handle: None,
-                    transcript: worker.transcript,
-                    next_transcript_sequence: worker.next_transcript_sequence,
                     last_event_id: worker.last_event_id,
                 },
             );
         }
 
+        #[cfg(feature = "ws-server")]
+        let next_observation_sequence = persisted
+            .observation_events
+            .iter()
+            .map(|event| event.sequence)
+            .max()
+            .map(|sequence| sequence.saturating_add(1))
+            .unwrap_or(1);
+        #[cfg(feature = "ws-server")]
+        let observation_events = persisted.observation_events.into_iter().collect();
+
         Ok(Self {
             runtime_id: persisted.runtime_id,
             display_name: persisted.display_name,
@@ -1062,9 +1081,9 @@ impl RuntimeState {
             events: persisted.events,
             diagnostics,
             #[cfg(feature = "ws-server")]
-            next_observation_sequence: 1,
+            next_observation_sequence,
             #[cfg(feature = "ws-server")]
-            observation_events: VecDeque::new(),
+            observation_events,
             #[cfg(feature = "ws-server")]
             observation_tx: broadcast::channel(256).0,
         })
@@ -1087,6 +1106,8 @@ impl RuntimeState {
                 .collect(),
             config_bundles: self.config_bundles.clone(),
             events: self.events.clone(),
+            #[cfg(feature = "ws-server")]
+            observation_events: Vec::new(),
             diagnostics: self.diagnostics.clone(),
         }
     }
@@ -1139,36 +1160,25 @@ impl RuntimeState {
         Ok(())
     }
 
-    #[cfg(feature = "fs-store")]
+    #[cfg(all(feature = "fs-store", feature = "ws-server"))]
-    fn persist_transcript_entry(
+    fn persist_worker_observation_event(
         &self,
-        worker_id: &WorkerId,
+        event: &WorkerObservationEvent,
-        sequence: u64,
     ) -> Result<(), RuntimeError> {
         if let Some(store) = self.fs_store() {
-            let worker =
+            store.append_worker_observation_event(event)?;
-                self.workers
-                    .get(worker_id)
-                    .ok_or_else(|| RuntimeError::WorkerNotFound {
-                        runtime_id: self.runtime_id.clone(),
-                        worker_id: worker_id.clone(),
-                    })?;
-            let entry = worker
-                .transcript
-                .iter()
-                .find(|entry| entry.sequence == sequence)
-                .ok_or_else(|| RuntimeError::StoreCorrupt {
-                    operation: "persist transcript",
-                    path: store.runtime_dir().to_path_buf(),
-                    message: format!(
-                        "transcript sequence {sequence} is missing from worker {worker_id}"
-                    ),
-                })?;
-            store.append_transcript_entry(entry)?;
         }
         Ok(())
     }
 
+    #[cfg(all(not(feature = "fs-store"), feature = "ws-server"))]
+    fn persist_worker_observation_event(
+        &self,
+        _event: &WorkerObservationEvent,
+    ) -> Result<(), RuntimeError> {
+        Ok(())
+    }
+
     #[cfg(feature = "fs-store")]
     fn persist_workers(&self) -> Result<(), RuntimeError> {
         if self.fs_store().is_some() {
@@ -1194,15 +1204,6 @@ impl RuntimeState {
         Ok(())
     }
 
-    #[cfg(not(feature = "fs-store"))]
-    fn persist_transcript_entry(
-        &self,
-        _worker_id: &WorkerId,
-        _sequence: u64,
-    ) -> Result<(), RuntimeError> {
-        Ok(())
-    }
-
     #[cfg(not(feature = "fs-store"))]
     fn persist_workers(&self) -> Result<(), RuntimeError> {
         Ok(())
@@ -1243,23 +1244,8 @@ impl RuntimeState {
 
     fn validate_worker_config_boundary(
         &self,
-        request: &CreateWorkerRequest,
+        _request: &CreateWorkerRequest,
     ) -> Result<(), RuntimeError> {
-        let reference = &request.config_bundle;
-        let availability = self.check_config_bundle_ref(reference)?;
-        let bundle = self
-            .config_bundles
-            .get(&availability.reference.id)
-            .ok_or_else(|| RuntimeError::ConfigBundleMissing {
-                bundle_id: availability.reference.id.clone(),
-            })?;
-        if !bundle.contains_profile(&request.profile) {
-            return Err(RuntimeError::InvalidProfileSelector {
-                profile: profile_label(&request.profile),
-                bundle_id: Some(reference.id.clone()),
-                message: "profile selector is not declared by synced config bundle".to_string(),
-            });
-        }
         Ok(())
     }
 
@@ -1369,66 +1355,6 @@ impl RuntimeState {
         event
     }
 
-    #[cfg(feature = "ws-server")]
-    fn append_worker_transcript_entry(
-        &mut self,
-        worker_ref: &WorkerRef,
-        role: TranscriptRole,
-        content: impl Into<String>,
-    ) -> Option<u64> {
-        let content = content.into();
-        if content.trim().is_empty() {
-            return None;
-        }
-        let event_id = self.last_event_id();
-        let worker = self.workers.get_mut(&worker_ref.worker_id)?;
-        let sequence = worker.next_transcript_sequence;
-        worker.next_transcript_sequence += 1;
-        worker.transcript.push(TranscriptEntry {
-            sequence,
-            worker_ref: worker_ref.clone(),
-            role,
-            content,
-            event_id,
-        });
-        Some(sequence)
-    }
-
-    #[cfg(feature = "ws-server")]
-    fn project_protocol_event_to_transcript(
-        &mut self,
-        worker_ref: &WorkerRef,
-        event: &protocol::Event,
-    ) -> Option<u64> {
-        match event {
-            protocol::Event::TextDone { text, .. } => self.append_worker_transcript_entry(
-                worker_ref,
-                TranscriptRole::Assistant,
-                text.clone(),
-            ),
-            protocol::Event::Error { message, .. } => self.append_worker_transcript_entry(
-                worker_ref,
-                TranscriptRole::System,
-                format!("error: {message}"),
-            ),
-            protocol::Event::ToolResult {
-                id,
-                summary,
-                is_error,
-                ..
-            } => self.append_worker_transcript_entry(
-                worker_ref,
-                TranscriptRole::System,
-                format!(
-                    "tool result {id}: {}{}",
-                    if *is_error { "error: " } else { "" },
-                    summary
-                ),
-            ),
-            _ => None,
-        }
-    }
-
     #[cfg(feature = "ws-server")]
     fn project_protocol_event_to_execution(
         &mut self,
@@ -1483,8 +1409,6 @@ struct WorkerRecord {
     request: CreateWorkerRequest,
     execution: WorkerExecutionStatus,
     execution_handle: Option<WorkerExecutionHandle>,
-    transcript: Vec<TranscriptEntry>,
-    next_transcript_sequence: u64,
     last_event_id: u64,
 }
 
@@ -1497,8 +1421,8 @@ impl WorkerRecord {
             status: self.status,
             execution: self.execution.clone(),
             profile: self.request.profile.clone(),
+            profile_source: self.request.profile_source.reference(),
             config_bundle: self.request.config_bundle.clone(),
-            transcript_len: self.transcript.len(),
             last_event_id: self.last_event_id,
         }
     }
@@ -1511,8 +1435,8 @@ impl WorkerRecord {
             status: self.status,
             execution: self.execution.clone(),
             profile: self.request.profile.clone(),
+            profile_source: self.request.profile_source.reference(),
             config_bundle: self.request.config_bundle.clone(),
-            transcript_len: self.transcript.len(),
             last_event_id: self.last_event_id,
         }
     }
@@ -1525,32 +1449,31 @@ impl WorkerRecord {
             status: self.status,
             request: self.request.clone(),
             execution: self.execution.clone(),
-            transcript: self.transcript.clone(),
-            next_transcript_sequence: self.next_transcript_sequence,
             last_event_id: self.last_event_id,
         }
     }
 }
 
-fn profile_label(selector: &ProfileSelector) -> String {
-    match selector {
-        ProfileSelector::RuntimeDefault => "runtime_default".to_string(),
-        ProfileSelector::Builtin(value) => value.clone(),
-        ProfileSelector::Named(value) => value.clone(),
-    }
-}
-
 fn validate_create_worker_request(request: &CreateWorkerRequest) -> Result<(), RuntimeError> {
-    if request.config_bundle.id.trim().is_empty() {
+    match &request.profile_source {
+        crate::catalog::ProfileSourceArchiveSource::Embedded { archive } => {
+            archive.verify().map_err(|err| {
+                RuntimeError::InvalidRequest(format!("profile_source archive is invalid: {err}"))
+            })?;
+        }
+        crate::catalog::ProfileSourceArchiveSource::Http { location } => {
+            if location.url.trim().is_empty() {
                 return Err(RuntimeError::InvalidRequest(
-            "config_bundle.id must not be empty".to_string(),
+                    "profile_source.location.url must not be empty".to_string(),
                 ));
             }
-    if request.config_bundle.digest.trim().is_empty() {
+            if location.archive.digest.trim().is_empty() {
                 return Err(RuntimeError::InvalidRequest(
-            "config_bundle.digest must not be empty".to_string(),
+                    "profile_source.location.archive.digest must not be empty".to_string(),
                 ));
             }
+        }
+    }
     if let Some(input) = &request.initial_input {
         if input.kind != WorkerInputKind::User {
             return Err(RuntimeError::InvalidInitialInputKind {
@@ -1575,6 +1498,23 @@ fn validate_worker_input(input: &WorkerInput) -> Result<(), RuntimeError> {
     Ok(())
 }
 
+#[cfg(feature = "ws-server")]
+fn input_protocol_event(input: &WorkerInput) -> protocol::Event {
+    match input.kind {
+        WorkerInputKind::User => protocol::Event::UserMessage {
+            segments: vec![protocol::Segment::Text {
+                content: input.content.clone(),
+            }],
+        },
+        WorkerInputKind::System => protocol::Event::SystemItem {
+            item: serde_json::json!({
+                "kind": "embedded_worker_system_input",
+                "content": input.content.clone(),
+            }),
+        },
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -1595,10 +1535,27 @@ mod tests {
         let bundle = test_bundle_for_profile(profile.clone());
         CreateWorkerRequest {
             profile,
-            config_bundle: ConfigBundleRef {
+            profile_source: crate::catalog::ProfileSourceArchiveSource::Http {
+                location: crate::catalog::ProfileSourceArchiveHttpRef {
+                    url: "http://127.0.0.1/profile-source.tar".to_string(),
+                    etag: None,
+                    archive: crate::profile_archive::ProfileSourceArchiveRef {
+                        id: "test-profile-source".to_string(),
+                        digest: "test-digest".to_string(),
+                        size_bytes: 0,
+                        source_graph: crate::profile_archive::ProfileSourceGraphSummary {
+                            source_count: 0,
+                            total_source_bytes: 0,
+                            entrypoints: BTreeMap::new(),
+                            import_count: 0,
+                        },
+                    },
+                },
+            },
+            config_bundle: Some(ConfigBundleRef {
                 id: bundle.metadata.id,
                 digest: bundle.metadata.digest,
-            },
+            }),
             initial_input: None,
             working_directory_request: None,
             working_directory: None,
@@ -1732,10 +1689,10 @@ mod tests {
 
     fn bundled_task_request(objective: &str, bundle: &ConfigBundle) -> CreateWorkerRequest {
         let mut request = task_request(objective);
-        request.config_bundle = ConfigBundleRef {
+        request.config_bundle = Some(ConfigBundleRef {
             id: bundle.metadata.id.clone(),
             digest: bundle.metadata.digest.clone(),
-        };
+        });
         request
     }
 
@@ -1746,7 +1703,7 @@ mod tests {
 
         assert_eq!(detail.worker_ref.runtime_id, runtime.runtime_id().unwrap());
         assert_eq!(detail.status, WorkerStatus::Running);
-        assert_eq!(detail.config_bundle.id, "bundle-1");
+        assert_eq!(detail.config_bundle.as_ref().unwrap().id, "bundle-1");
 
         let list = runtime.list_workers().unwrap();
         assert_eq!(list.len(), 1);
@@ -1778,7 +1735,7 @@ mod tests {
         let detail = runtime
             .create_worker(bundled_task_request("synced", &bundle))
             .unwrap();
-        assert_eq!(detail.config_bundle, availability.reference);
+        assert_eq!(detail.config_bundle, Some(availability.reference));
     }
 
     #[test]
@@ -1786,11 +1743,6 @@ mod tests {
         let runtime = Runtime::new_memory();
         let bundle = test_bundle();
 
-        let missing = runtime
-            .create_worker(bundled_task_request("missing", &bundle))
-            .unwrap_err();
-        assert!(matches!(missing, RuntimeError::ConfigBundleMissing { .. }));
-
         runtime.store_config_bundle(bundle.clone()).unwrap();
         let mismatch = runtime
             .check_config_bundle(&ConfigBundleRef {
@@ -1803,14 +1755,6 @@ mod tests {
             RuntimeError::ConfigBundleDigestMismatch { .. }
         ));
 
-        let mut bad_profile = bundled_task_request("bad profile", &bundle);
-        bad_profile.profile = ProfileSelector::Builtin("builtin:reviewer".to_string());
-        let invalid_profile = runtime.create_worker(bad_profile).unwrap_err();
-        assert!(matches!(
-            invalid_profile,
-            RuntimeError::InvalidProfileSelector { .. }
-        ));
-
         let mut unsupported = test_bundle();
         unsupported.declarations.push(ConfigDeclaration {
             kind: ConfigDeclarationKind::Unsupported,
@@ -1873,12 +1817,15 @@ mod tests {
     }
 
     #[test]
-    fn create_worker_missing_config_bundle_is_rejected_before_backend() {
+    fn create_worker_without_execution_backend_is_rejected_before_persisting_worker() {
         let runtime = Runtime::new_memory();
         let error = runtime
-            .create_worker(task_request("missing bundle"))
+            .create_worker(task_request("missing backend"))
             .unwrap_err();
-        assert!(matches!(error, RuntimeError::ConfigBundleMissing { .. }));
+        assert!(matches!(
+            error,
+            RuntimeError::ExecutionBackendUnavailable { .. }
+        ));
         assert!(runtime.list_workers().unwrap().is_empty());
     }
 
@@ -1903,12 +1850,12 @@ mod tests {
         ));
         let refreshed = runtime.worker_detail(&detail.worker_ref).unwrap();
         assert_eq!(refreshed.execution.run_state, WorkerExecutionRunState::Busy);
-        assert_eq!(
+        #[cfg(feature = "ws-server")]
+        assert!(
             runtime
-                .transcript_projection(&detail.worker_ref, TranscriptQuery::new(0, 1))
+                .read_worker_observation_events(&detail.worker_ref, WorkerObservationCursor::zero())
                 .unwrap()
-                .total_items,
+                .is_empty()
-            0
         );
     }
 
@@ -1987,12 +1934,12 @@ mod tests {
         );
     }
 
+    #[cfg(feature = "ws-server")]
     #[test]
-    fn send_input_and_project_bounded_transcript() {
+    fn send_input_records_protocol_observations() {
         let runtime = Runtime::with_execution_backend(
             RuntimeOptions {
                 limits: RuntimeLimits {
-                    max_transcript_projection_items: 2,
                     max_event_batch_items: 16,
                 },
                 ..RuntimeOptions::default()
@@ -2006,27 +1953,23 @@ mod tests {
         let first = runtime
             .send_input(&detail.worker_ref, WorkerInput::user("hello"))
             .unwrap();
-        assert_eq!(first.transcript_sequence, 1);
         runtime
             .send_input(&detail.worker_ref, WorkerInput::system("note"))
             .unwrap();
-        runtime
-            .send_input(&detail.worker_ref, WorkerInput::user("again"))
-            .unwrap();
 
-        let projection = runtime
+        let observations = runtime
-            .transcript_projection(&detail.worker_ref, TranscriptQuery::new(0, 2))
+            .read_worker_observation_events(&detail.worker_ref, WorkerObservationCursor::zero())
             .unwrap();
-        assert_eq!(projection.total_items, 3);
+        assert_eq!(first.event_id, 3);
-        assert_eq!(projection.items.len(), 2);
+        assert_eq!(observations.len(), 2);
-        assert_eq!(projection.items[0].content, "hello");
+        assert!(matches!(
-        assert_eq!(projection.items[1].role, TranscriptRole::System);
+            observations[0].payload,
-        assert_eq!(projection.next_start, Some(2));
+            protocol::Event::UserMessage { .. }
-
+        ));
-        let err = runtime
+        assert!(matches!(
-            .transcript_projection(&detail.worker_ref, TranscriptQuery::new(0, 3))
+            observations[1].payload,
-            .unwrap_err();
+            protocol::Event::SystemItem { .. }
-        assert!(matches!(err, RuntimeError::LimitTooLarge { .. }));
+        ));
     }
 
     #[test]
@@ -2191,7 +2134,7 @@ mod tests {
 
     #[cfg(feature = "fs-store")]
     #[test]
-    fn fs_store_restores_workers_events_and_transcripts() {
+    fn fs_store_restores_workers_events_and_protocol_observations() {
         let root = fs_store_root("restore");
         let runtime_id = RuntimeId::new("runtime-fs-authority").unwrap();
         let runtime = Runtime::with_fs_store_and_execution_backend(
@@ -2200,7 +2143,6 @@ mod tests {
                 runtime_id: Some(runtime_id.clone()),
                 display_name: Some("filesystem runtime".to_string()),
                 limits: RuntimeLimits {
-                    max_transcript_projection_items: 2,
                     max_event_batch_items: 2,
                 },
             },
@@ -2257,14 +2199,21 @@ mod tests {
                         && diagnostic.worker_ref.as_ref() == Some(&worker.worker_ref)
                 )
         );
-        assert_eq!(restored_worker.transcript_len, 2);
+        #[cfg(feature = "ws-server")]
-
+        {
-        let projection = restored
+            let observations = restored
-            .transcript_projection(&worker.worker_ref, TranscriptQuery::new(0, 1))
+                .read_worker_observation_events(&worker.worker_ref, WorkerObservationCursor::zero())
                 .unwrap();
-        assert_eq!(projection.total_items, 2);
+            assert_eq!(observations.len(), 2);
-        assert_eq!(projection.items[0].content, "first");
+            assert!(matches!(
-        assert_eq!(projection.next_start, Some(1));
+                observations[0].payload,
+                protocol::Event::UserMessage { .. }
+            ));
+            assert!(matches!(
+                observations[1].payload,
+                protocol::Event::SystemItem { .. }
+            ));
+        }
 
         let cursor = restored.event_cursor_from_start().unwrap();
         let batch = restored.read_events(&cursor, 2).unwrap();
@@ -2275,11 +2224,6 @@ mod tests {
 
         let direct_events = store.read_events(&cursor, 2, 2).unwrap();
         assert_eq!(direct_events.events, batch.events);
-        let direct_transcript = store
-            .read_transcript(&worker.worker_ref, TranscriptQuery::new(1, 1), 2)
-            .unwrap();
-        assert_eq!(direct_transcript.items[0].content, "second");
-
         #[cfg(feature = "ws-server")]
         {
             let observation = restored
@@ -2290,12 +2234,12 @@ mod tests {
                     },
                 )
                 .unwrap();
-            assert_eq!(observation.sequence, 1);
+            assert_eq!(observation.sequence, 3);
             let observations = restored
                 .read_worker_observation_events(&worker.worker_ref, WorkerObservationCursor::zero())
                 .unwrap();
-            assert_eq!(observations.len(), 1);
+            assert_eq!(observations.len(), 3);
-            assert_eq!(observations[0].cursor, observation.cursor);
+            assert_eq!(observations[2].cursor, observation.cursor);
         }
 
         let _ = std::fs::remove_dir_all(root);
@@ -2354,14 +2298,21 @@ mod tests {
         worker_dirs.sort_by_key(|entry| entry.path());
         std::fs::remove_file(worker_dirs[0].path().join("worker.json")).unwrap();
         drop(missing_runtime);
-        let err = Runtime::with_fs_store(crate::fs_store::FsRuntimeStoreOptions {
+        let loaded = Runtime::with_fs_store(crate::fs_store::FsRuntimeStoreOptions {
             root: missing_root.clone(),
             runtime_id: Some(missing_runtime_id),
             display_name: None,
             limits: RuntimeLimits::default(),
         })
-        .unwrap_err();
+        .expect("invalid worker snapshot should not make runtime store unreadable");
-        assert!(matches!(err, RuntimeError::StoreMissing { .. }));
+        assert!(loaded.list_workers().unwrap().is_empty());
+        assert!(
+            loaded
+                .diagnostics()
+                .unwrap()
+                .iter()
+                .any(|diagnostic| diagnostic.code == "worker_snapshot_ignored")
+        );
         let _ = std::fs::remove_dir_all(missing_root);
     }
 }

crates/worker-runtime/src/worker_backend.rs

@@ -9,22 +9,24 @@
 
 use std::collections::HashMap;
 use std::future::Future;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex, mpsc};
 use std::time::Duration;
 
-use crate::config_bundle::verified_profile_source_archive;
+use crate::catalog::{
+    ProfileSourceArchiveHttpRef, ProfileSourceArchiveSource, WorkingDirectoryRequest,
+    WorkingDirectoryStatus,
+};
 use crate::execution::{
     WorkerExecutionBackend, WorkerExecutionHandle, WorkerExecutionOperation, WorkerExecutionResult,
     WorkerExecutionRunState, WorkerExecutionSpawnRequest, WorkerExecutionSpawnResult,
 };
 use crate::interaction::{WorkerInput, WorkerInputKind};
-use crate::resource::{
+use crate::resource::{BackendResourceClient, ProfileSourceArchiveCache};
-    BackendResourceClient, BackendResourceError, ProfileSourceArchiveCache,
+use crate::working_directory::{
-    build_profile_source_archive_fetch_request, profile_source_archive_from_response,
+    WorkingDirectoryBinding, WorkingDirectoryDiagnostic, WorkingDirectoryMaterializer,
 };
-use crate::working_directory::{WorkingDirectoryBinding, WorkingDirectoryMaterializer};
 use async_trait::async_trait;
 use manifest::paths;
 use protocol::{Method, Segment, WorkerStatus};
@@ -33,7 +35,10 @@ use session_store::{CombinedStore, FsWorkerStore};
 use tokio::runtime::Runtime;
 use tokio::sync::broadcast;
 
-use worker::{Worker, WorkerController, WorkerHandle};
+use worker::{
+    Worker, WorkerController, WorkerFilesystemAuthority, WorkerHandle, WorkerWorkspaceContext,
+    WorkspaceId,
+};
 
 const DEFAULT_BACKEND_ID: &str = "worker-crate";
 const RUNTIME_TASK_TIMEOUT: Duration = Duration::from_secs(10);
@@ -135,7 +140,11 @@ impl ProfileRuntimeWorkerFactory {
     }
 
     fn runtime_worker_name(request: &WorkerExecutionSpawnRequest) -> String {
-        request.worker_ref.worker_id.to_string()
+        format!(
+            "runtime-{}-{}",
+            sanitize_worker_name_component(request.worker_ref.runtime_id.as_str()),
+            request.worker_ref.worker_id
+        )
     }
 
     fn runtime_profile_value(
@@ -167,54 +176,151 @@ impl ProfileRuntimeWorkerFactory {
     }
     async fn resolve_profile_source_archive(
         &self,
-        bundle: &crate::config_bundle::ConfigBundle,
+        source: &ProfileSourceArchiveSource,
-        request: &WorkerExecutionSpawnRequest,
     ) -> Result<crate::profile_archive::VerifiedProfileSourceArchive, String> {
-        if let Some(archive) = verified_profile_source_archive(bundle)
+        match source {
-            .map_err(|err| format!("failed to verify profile source archive: {err}"))?
+            ProfileSourceArchiveSource::Embedded { archive } => archive
-        {
-            return Ok(archive);
-        }
-        let handle = bundle
-            .profile_source_archive_handle
-            .clone()
-            .ok_or_else(|| {
-                format!(
-                    "config bundle {} does not contain a ProfileSourceArchive resource handle",
-                    bundle.metadata.id
-                )
-            })?;
-        let client = self.resource_client.as_ref().ok_or_else(|| {
-            format!(
-                "config bundle {} requires a Backend resource client for profile source archive fetch",
-                bundle.metadata.id
-            )
-        })?;
-        let fetch_request = build_profile_source_archive_fetch_request(
-            handle.clone(),
-            &request.worker_ref.runtime_id,
-            Some(&request.worker_ref.worker_id),
-        );
-        let response = client
-            .fetch_resource(fetch_request)
-            .await
-            .map_err(format_backend_resource_error)?;
-        let fetched_archive = profile_source_archive_from_response(&handle, response)
-            .map_err(format_backend_resource_error)?;
-        if let Some(cached) = self.profile_archive_cache.get(&handle.digest) {
-            return cached
                 .verify()
-                .map_err(|err| format!("failed to verify cached profile source archive: {err}"));
+                .map_err(|err| format!("failed to verify embedded profile source archive: {err}")),
+            ProfileSourceArchiveSource::Http { location } => {
+                self.fetch_profile_source_archive(location).await
             }
-        self.profile_archive_cache.insert(fetched_archive.clone());
+        }
-        fetched_archive
+    }
+
+    async fn fetch_profile_source_archive(
+        &self,
+        location: &ProfileSourceArchiveHttpRef,
+    ) -> Result<crate::profile_archive::VerifiedProfileSourceArchive, String> {
+        if let Some(cached) = self.profile_archive_cache.get(&location.archive.digest) {
+            let response =
+                fetch_profile_source_archive_http(location, Some(&location.archive.digest)).await?;
+            if let Some(fetched) = response {
+                self.profile_archive_cache.insert(fetched.clone());
+                fetched.verify().map_err(|err| {
+                    format!("failed to verify fetched profile source archive: {err}")
+                })
+            } else {
+                cached
+                    .verify()
+                    .map_err(|err| format!("failed to verify cached profile source archive: {err}"))
+            }
+        } else {
+            let archive = fetch_profile_source_archive_http(location, None)
+                .await?
+                .ok_or_else(|| {
+                    "profile source archive HTTP revalidation returned 304 without a cached archive"
+                        .to_string()
+                })?;
+            self.profile_archive_cache.insert(archive.clone());
+            archive
                 .verify()
                 .map_err(|err| format!("failed to verify fetched profile source archive: {err}"))
         }
+    }
 }
 
-fn format_backend_resource_error(error: BackendResourceError) -> String {
+fn sanitize_worker_name_component(value: &str) -> String {
-    format!("backend resource fetch failed: {error}")
+    value
+        .chars()
+        .map(|ch| {
+            if ch.is_ascii_alphanumeric() || matches!(ch, '-' | '_') {
+                ch
+            } else {
+                '-'
+            }
+        })
+        .collect()
+}
+
+#[derive(Debug, Clone)]
+enum RuntimeWorkspaceBackendRef {
+    None,
+    LocalFilesystem { root: PathBuf },
+}
+
+impl RuntimeWorkspaceBackendRef {
+    fn from_working_directory(binding: Option<&WorkingDirectoryBinding>) -> Self {
+        match binding {
+            Some(binding) => Self::LocalFilesystem {
+                root: binding.root().to_path_buf(),
+            },
+            None => Self::None,
+        }
+    }
+
+    fn worker_context(&self) -> WorkerWorkspaceContext {
+        match self {
+            Self::None => WorkerWorkspaceContext::no_workspace(),
+            Self::LocalFilesystem { root } => local_workspace_context(root),
+        }
+    }
+}
+
+fn local_workspace_context(root: &Path) -> WorkerWorkspaceContext {
+    WorkerWorkspaceContext::local_filesystem(read_workspace_id_hint(root))
+}
+
+fn read_workspace_id_hint(root: &Path) -> Option<WorkspaceId> {
+    let contents = std::fs::read_to_string(root.join(".yoi/workspace.toml")).ok()?;
+    let value = toml::from_str::<toml::Value>(&contents).ok()?;
+    let id = value.get("id")?.as_str()?.to_string();
+    WorkspaceId::new(id).ok()
+}
+
+#[cfg(feature = "http-server")]
+async fn fetch_profile_source_archive_http(
+    location: &ProfileSourceArchiveHttpRef,
+    cached_digest: Option<&str>,
+) -> Result<Option<crate::profile_archive::ProfileSourceArchive>, String> {
+    let client = reqwest::Client::new();
+    let mut request = client.get(&location.url);
+    if cached_digest == Some(location.archive.digest.as_str()) {
+        if let Some(etag) = location.etag.as_deref() {
+            request = request.header(reqwest::header::IF_NONE_MATCH, etag);
+        }
+    }
+    let response = request
+        .send()
+        .await
+        .map_err(|err| format!("failed to fetch profile source archive: {err}"))?;
+    if response.status() == reqwest::StatusCode::NOT_MODIFIED {
+        return Ok(None);
+    }
+    if !response.status().is_success() {
+        let status = response.status();
+        return Err(format!(
+            "profile source archive fetch failed with HTTP {status}"
+        ));
+    }
+    let bytes = response
+        .bytes()
+        .await
+        .map_err(|err| format!("failed to read profile source archive response: {err}"))?
+        .to_vec();
+    let archive = crate::profile_archive::ProfileSourceArchive {
+        reference: location.archive.clone(),
+        content: bytes,
+    };
+    if archive.content.len() as u64 != archive.reference.size_bytes {
+        return Err(format!(
+            "profile source archive size mismatch: expected {}, got {}",
+            archive.reference.size_bytes,
+            archive.content.len()
+        ));
+    }
+    Ok(Some(archive))
+}
+
+#[cfg(not(feature = "http-server"))]
+async fn fetch_profile_source_archive_http(
+    _location: &ProfileSourceArchiveHttpRef,
+    _cached_digest: Option<&str>,
+) -> Result<Option<crate::profile_archive::ProfileSourceArchive>, String> {
+    Err(
+        "HTTP profile source archive fetch requires the worker-runtime http-server feature"
+            .to_string(),
+    )
 }
 
 #[async_trait]
@@ -230,16 +336,24 @@ impl RuntimeWorkerFactory for ProfileRuntimeWorkerFactory {
             .as_ref()
             .map(|binding| binding.root().to_path_buf())
             .unwrap_or_else(|| self.profile_base_dir.clone());
-        let cwd = request
+        let filesystem_authority = request
             .working_directory
             .as_ref()
-            .map(|binding| binding.cwd().to_path_buf())
+            .map(|binding| {
-            .unwrap_or_else(|| self.cwd.clone());
+                WorkerFilesystemAuthority::local(
-        let (mut manifest, loader) = if let Some(bundle) = request.config_bundle.as_ref() {
+                    binding.root().to_path_buf(),
+                    binding.cwd().to_path_buf(),
+                )
+            })
+            .unwrap_or(WorkerFilesystemAuthority::None);
+        let workspace_backend_ref =
+            RuntimeWorkspaceBackendRef::from_working_directory(request.working_directory.as_ref());
+        let workspace_context = workspace_backend_ref.worker_context();
         let selector = profile.as_deref().unwrap_or("builtin:default");
         let archive = self
-                .resolve_profile_source_archive(bundle, &request)
+            .resolve_profile_source_archive(&request.request.profile_source)
             .await?;
+        let (mut manifest, loader) = {
             let manifest = archive
                 .resolve_profile(selector, &worker_root, &worker_name)
                 .map_err(|err| format!("failed to resolve profile source archive: {err}"))?;
@@ -248,15 +362,6 @@ impl RuntimeWorkerFactory for ProfileRuntimeWorkerFactory {
                 &worker_root,
                 &worker_name,
             )?
-        } else {
-            // Compatibility/debug fallback for direct CLI tests. Normal Browser/Backend launch
-            // supplies a ProfileSourceArchive inside the Runtime config bundle and must not use
-            // Runtime-local filesystem profile discovery.
-            worker::entrypoint::resolve_runtime_profile_manifest(
-                profile.as_deref(),
-                &self.profile_base_dir,
-                &worker_name,
-            )?
         };
         manifest.worker.name = worker_name;
 
@@ -276,7 +381,13 @@ impl RuntimeWorkerFactory for ProfileRuntimeWorkerFactory {
         })?;
         let store = CombinedStore::new(session_store, worker_metadata_store);
 
-        let worker = Worker::from_manifest_with_context(manifest, store, loader, worker_root, cwd)
+        let worker = Worker::from_manifest_with_context(
+            manifest,
+            store,
+            loader,
+            workspace_context,
+            filesystem_authority,
+        )
         .await
         .map_err(|err| format!("failed to create Worker from profile: {err}"))?;
 
@@ -441,6 +552,52 @@ where
         &self.backend_id
     }
 
+    fn create_working_directory(
+        &self,
+        request: &WorkingDirectoryRequest,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        let Some(materializer) = self.working_directory_materializer.as_ref() else {
+            return Err(WorkingDirectoryDiagnostic::rejected(
+                "working_directory_materializer_unavailable",
+                "working directory materialization requested, but no materializer is configured for this runtime backend",
+            ));
+        };
+        Ok(materializer.create(request)?.status())
+    }
+
+    fn list_working_directories(&self) -> Vec<WorkingDirectoryStatus> {
+        self.working_directory_materializer
+            .as_ref()
+            .and_then(|materializer| materializer.list_working_directories().ok())
+            .unwrap_or_default()
+    }
+
+    fn working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        let Some(materializer) = self.working_directory_materializer.as_ref() else {
+            return Err(WorkingDirectoryDiagnostic::rejected(
+                "working_directory_materializer_unavailable",
+                "working directory lookup requested, but no materializer is configured for this runtime backend",
+            ));
+        };
+        materializer.working_directory_status(working_directory_id)
+    }
+
+    fn cleanup_working_directory(
+        &self,
+        working_directory_id: &str,
+    ) -> Result<WorkingDirectoryStatus, WorkingDirectoryDiagnostic> {
+        let Some(materializer) = self.working_directory_materializer.as_ref() else {
+            return Err(WorkingDirectoryDiagnostic::rejected(
+                "working_directory_materializer_unavailable",
+                "working directory cleanup requested, but no materializer is configured for this runtime backend",
+            ));
+        };
+        materializer.cleanup_working_directory(working_directory_id)
+    }
+
     fn spawn_worker(&self, request: WorkerExecutionSpawnRequest) -> WorkerExecutionSpawnResult {
         if self
             .workers
@@ -701,7 +858,7 @@ where
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::collections::{BTreeMap, VecDeque};
+    use std::collections::{BTreeMap, BTreeSet};
     use std::fs;
     use std::pin::Pin;
     use std::process::Command;
@@ -715,7 +872,7 @@ mod tests {
     use crate::execution::WorkerExecutionContext;
     use crate::identity::RuntimeId;
     use crate::management::RuntimeOptions;
-    use crate::observation::{TranscriptQuery, TranscriptRole};
+    use crate::observation::WorkerObservationCursor;
     use crate::working_directory::LocalGitWorktreeMaterializer;
     use async_trait::async_trait;
     use futures::Stream;
@@ -797,18 +954,31 @@ mod tests {
                 FsStore::new(&self.store_dir).map_err(|err| err.to_string())?,
                 FsWorkerStore::new(&self.worker_metadata_dir).map_err(|err| err.to_string())?,
             );
-            let cwd = request
+            let filesystem_authority = request
                 .working_directory
                 .as_ref()
-                .map(|binding| binding.cwd().to_path_buf())
+                .map(|binding| {
-                .unwrap_or_else(|| self.cwd.clone());
+                    let cwd = binding.cwd().to_path_buf();
                     self.observed_cwds.lock().unwrap().push(cwd.clone());
-            let scope = Scope::writable(&cwd).map_err(|err| err.to_string())?;
+                    WorkerFilesystemAuthority::local(binding.root().to_path_buf(), cwd)
+                })
+                .unwrap_or(WorkerFilesystemAuthority::None);
+            let scope_root = request
+                .working_directory
+                .as_ref()
+                .map(|binding| binding.root().to_path_buf())
+                .unwrap_or_else(|| self.cwd.clone());
+            let workspace_backend_ref = RuntimeWorkspaceBackendRef::from_working_directory(
+                request.working_directory.as_ref(),
+            );
+            let workspace_context = workspace_backend_ref.worker_context();
+            let scope = Scope::writable(&scope_root).map_err(|err| err.to_string())?;
             let worker = Worker::new(
                 manifest,
                 Engine::new(self.client.clone()),
                 store,
-                cwd,
+                workspace_context,
+                filesystem_authority,
                 scope,
             )
             .await
@@ -820,6 +990,20 @@ mod tests {
         }
     }
 
+    fn core_filesystem_tool_names() -> BTreeSet<&'static str> {
+        ["Read", "Write", "Edit", "Glob", "Grep", "Bash"]
+            .into_iter()
+            .collect()
+    }
+
+    fn captured_tool_names(client: &MockClient, index: usize) -> BTreeSet<String> {
+        client.captured.lock().unwrap()[index]
+            .tools
+            .iter()
+            .map(|tool| tool.name.clone())
+            .collect()
+    }
+
     fn simple_text_events() -> Vec<LlmEvent> {
         vec![
             LlmEvent::text_block_start(0),
@@ -850,7 +1034,7 @@ mod tests {
                 label: Some("adapter-test".to_string()),
             }],
             declarations: Vec::new(),
-            profile_source_archive: None,
+            profile_source_archive: Some(sample_profile_archive()),
             profile_source_archive_handle: None,
         }
         .with_computed_digest()
@@ -879,110 +1063,17 @@ mod tests {
         .unwrap()
     }
 
-    fn handle_for_archive(
-        archive: &crate::profile_archive::ProfileSourceArchive,
-    ) -> crate::resource::BackendResourceHandle {
-        crate::resource::BackendResourceHandle {
-            kind: crate::resource::BackendResourceKind::ProfileSourceArchive,
-            workspace_id: "workspace-test".to_string(),
-            scope_id: Some("workspace-profile-source".to_string()),
-            runtime_id: Some("runtime-test".to_string()),
-            worker_id: Some("worker-test".to_string()),
-            resource_id: archive.reference.id.clone(),
-            digest: archive.reference.digest.clone(),
-            operation: crate::resource::BackendResourceOperation::FetchArchive,
-            expires_at_unix_seconds: 4_102_444_800,
-            nonce: "nonce-test".to_string(),
-            revision: archive.reference.digest.clone(),
-            generation: Some(1),
-            max_bytes: crate::resource::DEFAULT_PROFILE_SOURCE_ARCHIVE_MAX_BYTES,
-            content_type: crate::resource::PROFILE_SOURCE_ARCHIVE_CONTENT_TYPE.to_string(),
-            redaction: crate::resource::ResourceRedactionPolicy::RuntimeInternalOnly,
-            audit_correlation_id: "audit-test".to_string(),
-            profile_source_graph: Some(archive.reference.source_graph.clone()),
-        }
-    }
-
-    fn response_for_archive(
-        handle: &crate::resource::BackendResourceHandle,
-        archive: &crate::profile_archive::ProfileSourceArchive,
-    ) -> crate::resource::BackendResourceFetchResponse {
-        crate::resource::BackendResourceFetchResponse {
-            kind: crate::resource::BackendResourceKind::ProfileSourceArchive,
-            resource_id: handle.resource_id.clone(),
-            digest: handle.digest.clone(),
-            content_type: crate::resource::PROFILE_SOURCE_ARCHIVE_CONTENT_TYPE.to_string(),
-            bytes: archive.content.clone(),
-            audit_correlation_id: handle.audit_correlation_id.clone(),
-        }
-    }
-
-    #[derive(Clone)]
-    struct SequencedResourceClient {
-        responses: Arc<
-            Mutex<
-                VecDeque<
-                    Result<
-                        crate::resource::BackendResourceFetchResponse,
-                        crate::resource::BackendResourceError,
-                    >,
-                >,
-            >,
-        >,
-        call_count: Arc<AtomicUsize>,
-    }
-
-    #[async_trait]
-    impl crate::resource::BackendResourceClient for SequencedResourceClient {
-        async fn fetch_resource(
-            &self,
-            _request: crate::resource::BackendResourceFetchRequest,
-        ) -> Result<
-            crate::resource::BackendResourceFetchResponse,
-            crate::resource::BackendResourceError,
-        > {
-            self.call_count.fetch_add(1, Ordering::SeqCst);
-            self.responses
-                .lock()
-                .unwrap()
-                .pop_front()
-                .expect("missing sequenced resource response")
-        }
-    }
-
-    fn spawn_request_with_bundle(
-        bundle: crate::config_bundle::ConfigBundle,
-    ) -> WorkerExecutionSpawnRequest {
-        let worker_ref = crate::identity::WorkerRef::new(
-            RuntimeId::new("runtime-test").unwrap(),
-            crate::identity::WorkerId::new("worker-test").unwrap(),
-        );
-        WorkerExecutionSpawnRequest {
-            worker_ref: worker_ref.clone(),
-            request: CreateWorkerRequest {
-                profile: ProfileSelector::RuntimeDefault,
-                config_bundle: ConfigBundleRef {
-                    id: bundle.metadata.id.clone(),
-                    digest: bundle.metadata.digest.clone(),
-                },
-                initial_input: None,
-                working_directory_request: None,
-                working_directory: None,
-            },
-            context: WorkerExecutionContext::new(worker_ref, Arc::new(|_, _| panic!("unused"))),
-            working_directory: None,
-            config_bundle: Some(bundle),
-        }
-    }
-
     fn create_request(_name: &str) -> CreateWorkerRequest {
         let bundle = test_bundle();
         CreateWorkerRequest {
             profile: ProfileSelector::RuntimeDefault,
-            config_bundle: ConfigBundleRef {
+            profile_source: crate::catalog::ProfileSourceArchiveSource::Embedded {
+                archive: bundle.profile_source_archive.clone().unwrap(),
+            },
+            config_bundle: Some(ConfigBundleRef {
                 id: bundle.metadata.id,
                 digest: bundle.metadata.digest,
-            },
+            }),
             initial_input: None,
             working_directory_request: None,
             working_directory: None,
@@ -1024,38 +1115,46 @@ mod tests {
             },
             materializer: MaterializerKind::LocalGitWorktree,
             dirty_state_policy: DirtyStatePolicy::CleanPointOnly,
+            backend_workdir_id: None,
         }
     }
 
+    #[test]
+    fn runtime_worker_name_is_namespaced_by_runtime_id() {
+        let runtime_id = RuntimeId::new("arc:remote".to_string()).unwrap();
+        let worker_ref = crate::identity::WorkerRef::new(
+            runtime_id,
+            crate::identity::WorkerId::new("worker-00000001".to_string()).unwrap(),
+        );
+        let request = WorkerExecutionSpawnRequest {
+            worker_ref: worker_ref.clone(),
+            request: create_request("worker-00000001"),
+            context: WorkerExecutionContext::new(worker_ref, Arc::new(|_, _| panic!("unused"))),
+            working_directory: None,
+            config_bundle: None,
+        };
+
+        assert_eq!(
+            ProfileRuntimeWorkerFactory::runtime_worker_name(&request),
+            "runtime-arc-remote-worker-00000001"
+        );
+        assert_ne!(
+            ProfileRuntimeWorkerFactory::runtime_worker_name(&request),
+            "worker-00000001"
+        );
+    }
+
     #[tokio::test]
-    async fn cached_profile_archive_still_requires_backend_authorization() {
+    async fn embedded_profile_source_archive_does_not_require_backend_resource_fetch() {
-        let archive = sample_profile_archive();
+        let factory = ProfileRuntimeWorkerFactory::new(tempfile::tempdir().unwrap().path());
-        let handle = handle_for_archive(&archive);
+        let bundle = test_bundle();
-        let call_count = Arc::new(AtomicUsize::new(0));
+        let source = crate::catalog::ProfileSourceArchiveSource::Embedded {
-        let client = SequencedResourceClient {
+            archive: bundle.profile_source_archive.clone().unwrap(),
-            responses: Arc::new(Mutex::new(VecDeque::from([
-                Ok(response_for_archive(&handle, &archive)),
-                Err(crate::resource::BackendResourceError::Expired),
-            ]))),
-            call_count: call_count.clone(),
         };
-        let factory = ProfileRuntimeWorkerFactory::new(tempfile::tempdir().unwrap().path())
-            .with_resource_client(Arc::new(client));
-        let mut bundle = test_bundle();
-        bundle.profile_source_archive_handle = Some(handle);
-        bundle = bundle.with_computed_digest();
-
         factory
-            .resolve_profile_source_archive(&bundle, &spawn_request_with_bundle(bundle.clone()))
+            .resolve_profile_source_archive(&source)
             .await
-            .expect("first fetch should authorize and cache archive");
+            .expect("embedded archive should resolve without Backend resource client");
-        let err = factory
-            .resolve_profile_source_archive(&bundle, &spawn_request_with_bundle(bundle.clone()))
-            .await
-            .unwrap_err();
-
-        assert!(err.contains("expired"), "unexpected error: {err}");
-        assert_eq!(call_count.load(Ordering::SeqCst), 2);
     }
 
     #[test]
@@ -1089,7 +1188,7 @@ mod tests {
             cwd: cwd.path().to_path_buf(),
             store_dir: store.path().join("sessions"),
             worker_metadata_dir: store.path().join("workers"),
-            observed_cwds,
+            observed_cwds: observed_cwds.clone(),
         };
         let backend = WorkerRuntimeExecutionBackend::new(factory).unwrap();
         let runtime = EmbeddedRuntime::with_execution_backend(
@@ -1109,27 +1208,35 @@ mod tests {
 
         let deadline = std::time::Instant::now() + Duration::from_secs(5);
         loop {
-            let projection = runtime
+            let observations = runtime
-                .transcript_projection(&detail.worker_ref, TranscriptQuery::new(0, 10))
+                .read_worker_observation_events(&detail.worker_ref, WorkerObservationCursor::zero())
                 .unwrap();
-            if projection.items.iter().any(|item| {
+            if observations.iter().any(|event| {
-                item.role == TranscriptRole::Assistant && item.content == "hello from worker"
+                matches!(
+                    &event.payload,
+                    protocol::Event::TextDone { text } if text == "hello from worker"
+                )
             }) {
                 break;
             }
             assert!(
                 std::time::Instant::now() < deadline,
-                "timed out waiting for assistant transcript projection"
+                "timed out waiting for assistant protocol observation"
             );
             std::thread::sleep(Duration::from_millis(20));
         }
 
         assert_eq!(client.captured.lock().unwrap().len(), 1);
+        assert!(observed_cwds.lock().unwrap().is_empty());
+        let names = captured_tool_names(&client, 0);
+        for forbidden in core_filesystem_tool_names() {
+            assert!(
+                !names.contains(forbidden),
+                "no-workdir Worker unexpectedly exposed {forbidden}; tools={names:?}"
+            );
+        }
         let observations = runtime
-            .read_worker_observation_events(
+            .read_worker_observation_events(&detail.worker_ref, WorkerObservationCursor::zero())
-                &detail.worker_ref,
-                crate::observation::WorkerObservationCursor::zero(),
-            )
             .unwrap();
         assert!(
             observations
@@ -1146,7 +1253,7 @@ mod tests {
         let store = tempfile::tempdir().unwrap();
         let observed_cwds = Arc::new(Mutex::new(Vec::new()));
         let factory = MockFactory {
-            client,
+            client: client.clone(),
             runtime_base: runtime_base.path().to_path_buf(),
             cwd: repo.path().to_path_buf(),
             store_dir: store.path().join("sessions"),
@@ -1171,6 +1278,24 @@ mod tests {
         request.working_directory_request = Some(working_directory_request(repo.path()));
 
         let detail = runtime.create_worker(request).unwrap();
+        runtime
+            .send_input(&detail.worker_ref, WorkerInput::user("inspect tools"))
+            .unwrap();
+        let deadline = std::time::Instant::now() + Duration::from_secs(5);
+        while client.captured.lock().unwrap().is_empty() {
+            assert!(
+                std::time::Instant::now() < deadline,
+                "timed out waiting for materialized-worker request"
+            );
+            std::thread::sleep(Duration::from_millis(20));
+        }
+        let names = captured_tool_names(&client, 0);
+        for expected in core_filesystem_tool_names() {
+            assert!(
+                names.contains(expected),
+                "local Worker did not expose {expected}; tools={names:?}"
+            );
+        }
 
         assert!(detail.execution.working_directory.is_some());
         let cwds = observed_cwds.lock().unwrap();

crates/worker-runtime/src/working_directory.rs

@@ -51,6 +51,7 @@ impl WorkingDirectory {
             cleanup_target: Some(self.cleanup_target.clone()),
             cleanup_policy: Some(self.cleanup_policy.clone()),
             status: self.status.clone(),
+            management_kind: None,
         }
     }
 }
@@ -95,6 +96,10 @@ pub struct WorkingDirectoryDiagnostic {
 }
 
 impl WorkingDirectoryDiagnostic {
+    pub fn rejected(code: impl Into<String>, message: impl Into<String>) -> Self {
+        Self::new(code, message)
+    }
+
     fn new(code: impl Into<String>, message: impl Into<String>) -> Self {
         Self {
             code: code.into(),
@@ -391,7 +396,10 @@ impl WorkingDirectoryMaterializer for LocalGitWorktreeMaterializer {
         &self,
         request: &WorkingDirectoryRequest,
     ) -> Result<WorkingDirectoryBinding, WorkingDirectoryDiagnostic> {
-        let working_directory_id = next_working_directory_id(&request.repository.id);
+        let working_directory_id = request
+            .backend_workdir_id
+            .clone()
+            .unwrap_or_else(|| next_working_directory_id(&request.repository.id));
         self.materialize_with_working_directory_id(
             working_directory_id,
             request,
@@ -715,6 +723,7 @@ mod tests {
             },
             materializer: MaterializerKind::LocalGitWorktree,
             dirty_state_policy: DirtyStatePolicy::CleanPointOnly,
+            backend_workdir_id: None,
         }
     }
 

crates/worker/src/controller.rs

@@ -274,7 +274,9 @@ impl WorkerController {
             manifest_toml.clone(),
             greeting,
         ));
+        if let Some(fs_for_view) = fs_for_view {
             shared_state.set_fs_view(crate::fs_view::WorkerFsView::new(fs_for_view));
+        }
         shared_state.set_workflows(
             worker
                 .workflow_completions()
@@ -520,15 +522,17 @@ fn install_ticket_event_companion_notify_hook<C, St>(
         return;
     }
 
-    let Some(companion_worker_name) = companion_worker_name_for_workspace(worker.workspace_root())
+    let Some(local) = worker.local_working_directory() else {
-    else {
+        return;
+    };
+    let Some(companion_worker_name) = companion_worker_name_for_workspace(&local.root) else {
         return;
     };
     if companion_worker_name == worker.manifest().worker.name {
         return;
     }
 
-    let Ok(ticket_config) = TicketConfig::load_workspace(worker.cwd()) else {
+    let Ok(ticket_config) = TicketConfig::load_workspace(&local.cwd) else {
         return;
     };
     let backend_root = ticket_config.backend_root().to_path_buf();
@@ -540,7 +544,7 @@ fn install_ticket_event_companion_notify_hook<C, St>(
         worker.worker_metadata_store(),
         worker.manifest().worker.name.clone(),
         runtime_base,
-        worker.cwd().to_path_buf(),
+        Some(local.cwd.clone()),
         spawned_registry,
     );
     match discovery.ensure_existing_peer(&companion_worker_name) {
@@ -589,7 +593,7 @@ async fn register_worker_tools<C, St>(
     spawner_socket: PathBuf,
     runtime_base: PathBuf,
     spawned_registry: Arc<SpawnedWorkerRegistry>,
-) -> std::io::Result<tools::ScopedFs>
+) -> std::io::Result<Option<tools::ScopedFs>>
 where
     C: LlmClient + Clone + 'static,
     St: Store + WorkerMetadataStore + Clone + 'static,
@@ -597,8 +601,8 @@ where
     // Worker-immutable snapshots taken before the mutable worker borrow
     // below so the worker borrow doesn't conflict with reads on `worker`.
     let scope_handle = worker.scope().clone();
-    let cwd = worker.cwd().to_path_buf();
+    let local_filesystem = worker.local_working_directory().cloned();
-    let workspace_root = worker.workspace_root().to_path_buf();
+    let local_workspace_root = local_filesystem.as_ref().map(|local| local.root.clone());
     let task_feature = worker.task_feature();
     let session_id_for_usage = worker.segment_id().to_string();
     let memory_config = worker.manifest().memory.clone();
@@ -611,16 +615,12 @@ where
     let worker_metadata_store = worker.store().clone();
     let self_parent_socket = worker.callback_socket().cloned();
 
-    // The Worker's SharedScope (already augmented with the bash-output
+    // The Worker's SharedScope is the single source of truth for every
-    // Read rule by the caller) is the single source of truth — every
+    // ScopedFs when local filesystem authority exists. No-workdir Workers
-    // ScopedFs (builtin tools, fs_view, compact worker) reads from it,
+    // deliberately skip constructing/registering filesystem and Bash tools.
-    // and any future scope mutation (SpawnWorker-style revoke, future
+    let (fs_for_view, tracker) = if let Some(local) = local_filesystem.as_ref() {
-    // GrantScope) propagates through it.
+        let fs = tools::ScopedFs::with_shared_scope(scope_handle.clone(), local.cwd.clone());
-    let fs = tools::ScopedFs::with_shared_scope(scope_handle.clone(), cwd.clone());
         let tracker = tools::Tracker::new();
-    // Same ScopedFs also powers the IPC `ListCompletions` query — keep
-    // a clone for the FS view we attach below, since the tools consume
-    // `fs` itself.
         let fs_for_view = fs.clone();
         worker
             .engine_mut()
@@ -629,6 +629,10 @@ where
                 tracker.clone(),
                 bash_output_dir,
             ));
+        (Some(fs_for_view), Some(tracker))
+    } else {
+        (None, None)
+    };
     if feature_config.web.enabled {
         worker
             .engine_mut()
@@ -649,11 +653,20 @@ where
             }
         };
         // Ticket tools are typed operations over the currently checked-out work
-        // tree. Use the Worker cwd rather than the runtime workspace root so a
+        // tree. They require explicit local filesystem authority and must not
-        // dedicated Orchestrator worktree gets its own `.yoi/tickets` backend.
+        // use workspace identity as a cwd fallback.
+        let ticket_cwd = local_filesystem
+            .as_ref()
+            .map(|local| &local.cwd)
+            .ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "ticket tools require local Worker filesystem authority",
+                )
+            })?;
         feature_registry.add_module(
             crate::feature::builtin::ticket::ticket_tools_feature_with_options(
-                &cwd,
+                ticket_cwd,
                 feature_config.ticket.enabled.then_some(ticket_access),
                 feature_config.ticket_orchestration.enabled,
             ),
@@ -665,11 +678,13 @@ where
     ) {
         feature_registry = feature_registry.with_module(module);
     }
+    if let Some(workspace_root) = local_workspace_root.as_ref() {
         if let Some(module) =
-        crate::feature::mcp::discover_stdio_tool_feature(&mcp_config, &workspace_root).await
+            crate::feature::mcp::discover_stdio_tool_feature(&mcp_config, workspace_root).await
         {
             feature_registry = feature_registry.with_module(module);
         }
+    }
 
     {
         let worker = worker.engine_mut();
@@ -684,7 +699,13 @@ where
                     "[feature.memory].enabled = true requires a [memory] configuration section",
                 )
             })?;
-            let layout = memory::WorkspaceLayout::resolve(mem, &workspace_root);
+            let workspace_root = local_workspace_root.as_ref().ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "memory tools require local Worker filesystem authority",
+                )
+            })?;
+            let layout = memory::WorkspaceLayout::resolve(mem, workspace_root);
             let query_cfg = memory::tool::QueryConfig::from(mem);
             worker.register_tool(memory::tool::read_tool_with_usage(
                 layout.clone(),
@@ -709,12 +730,27 @@ where
                     "[feature.workers].enabled = true requires non-empty [[delegation_scope.allow]]",
                 ));
             }
+            let spawner_cwd = local_filesystem
+                .as_ref()
+                .map(|local| local.cwd.clone())
+                .ok_or_else(|| {
+                    std::io::Error::new(
+                        std::io::ErrorKind::InvalidInput,
+                        "worker spawn tools require local Worker filesystem authority",
+                    )
+                })?;
+            let spawner_workspace_root = local_workspace_root.clone().ok_or_else(|| {
+                std::io::Error::new(
+                    std::io::ErrorKind::InvalidInput,
+                    "worker spawn tools require local Worker filesystem authority",
+                )
+            })?;
             worker.register_tool(spawn_worker_tool(
                 spawner_name.clone(),
                 spawner_socket,
                 runtime_base.clone(),
-                workspace_root.clone(),
+                spawner_workspace_root,
-                cwd.clone(),
+                spawner_cwd.clone(),
                 spawned_registry.clone(),
                 self_parent_socket,
                 spawner_manifest,
@@ -728,7 +764,7 @@ where
                 worker_metadata_store,
                 spawner_name,
                 runtime_base,
-                cwd,
+                Some(spawner_cwd),
                 spawned_registry,
             );
             worker.register_tool(list_workers_tool(discovery.clone()));
@@ -737,7 +773,9 @@ where
         }
     }
     let _feature_install_report = worker.install_features(feature_registry);
+    if let Some(tracker) = tracker {
         worker.attach_tracker(tracker);
+    }
     Ok(fs_for_view)
 }
 
@@ -774,11 +812,14 @@ async fn controller_loop<C, St>(
         .parent()
         .map(PathBuf::from)
         .unwrap_or_else(|| runtime_dir.path().to_path_buf());
+    let discovery_cwd = worker
+        .local_working_directory()
+        .map(|local| local.cwd.clone());
     let discovery = WorkerDiscovery::new(
         worker.store().clone(),
         spawner_name.clone(),
         discovery_runtime_base,
-        worker.cwd().to_path_buf(),
+        discovery_cwd,
         spawned_registry.clone(),
     );
     let mut pending: Option<PendingRun> = None;
@@ -1445,7 +1486,10 @@ where
         .collect();
     protocol::Greeting {
         worker_name: manifest.worker.name.clone(),
-        cwd: worker.cwd().display().to_string(),
+        cwd: worker
+            .local_working_directory()
+            .map(|local| local.cwd.display().to_string())
+            .unwrap_or_default(),
         provider: provider_name,
         model: model_id,
         scope_summary: worker.scope_snapshot().summary(),

crates/worker/src/discovery.rs

@@ -42,7 +42,7 @@ pub struct WorkerDiscovery<St> {
     store: St,
     self_worker_name: String,
     runtime_base: PathBuf,
-    cwd: PathBuf,
+    cwd: Option<PathBuf>,
     store_dir: Option<PathBuf>,
     spawned_registry: Arc<SpawnedWorkerRegistry>,
 }
@@ -55,7 +55,7 @@ where
         store: St,
         self_worker_name: String,
         runtime_base: PathBuf,
-        cwd: PathBuf,
+        cwd: Option<PathBuf>,
         spawned_registry: Arc<SpawnedWorkerRegistry>,
     ) -> Self {
         let store_dir = store.root_dir();
@@ -432,13 +432,19 @@ where
     ) -> Result<(), WorkerDiscoveryError> {
         let runtime_command =
             WorkerRuntimeCommand::resolve().map_err(WorkerDiscoveryError::RestoreSpawn)?;
+        let Some(cwd) = &self.cwd else {
+            return Err(WorkerDiscoveryError::NotRestorable {
+                worker_name: worker_name.to_string(),
+                reason: "restore requires local Worker filesystem authority".into(),
+            });
+        };
         let mut command = Command::new(runtime_command.program());
         command
             .args(runtime_command.prefix_args())
             .arg("--worker")
             .arg(worker_name)
             .arg("--require-worker-state")
-            .current_dir(&self.cwd)
+            .current_dir(cwd)
             .stdin(Stdio::null())
             .stdout(Stdio::null())
             .stderr(Stdio::null())
@@ -1139,6 +1145,7 @@ mod tests {
             worker_name: "parent".into(),
             active: None,
             workspace_root: None,
+            workspace_id: None,
             spawned_children: vec![
                 child("child-live", &live_socket),
                 child("child-stale", &stale_socket),
@@ -1159,6 +1166,7 @@ mod tests {
                     active_child_segment,
                 )),
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -1173,6 +1181,7 @@ mod tests {
                     active_child_segment,
                 )),
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -1184,6 +1193,7 @@ mod tests {
                 worker_name: "child-pending".into(),
                 active: Some(WorkerActiveSegmentRef::pending_segment(pending_session_id)),
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -1198,6 +1208,7 @@ mod tests {
                     new_segment_id(),
                 )),
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -1209,6 +1220,7 @@ mod tests {
                 worker_name: "peer".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1228,7 +1240,7 @@ mod tests {
             store.clone(),
             "parent".into(),
             runtime_base.clone(),
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             registry,
         );
 
@@ -1355,7 +1367,7 @@ mod tests {
             store.clone(),
             "source".into(),
             runtime_base.clone(),
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
         let result = discovery.register_peer("target").unwrap();
@@ -1390,7 +1402,7 @@ mod tests {
             store,
             "source".into(),
             runtime_base,
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
 
@@ -1415,6 +1427,7 @@ mod tests {
                 worker_name: "source".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1430,7 +1443,7 @@ mod tests {
             store.clone(),
             "source".into(),
             runtime_base,
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
 
@@ -1455,6 +1468,7 @@ mod tests {
                 worker_name: "source".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1468,6 +1482,7 @@ mod tests {
                 worker_name: "target".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1481,7 +1496,7 @@ mod tests {
             store,
             "source".into(),
             runtime_base.clone(),
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
 
@@ -1573,6 +1588,7 @@ mod tests {
                 worker_name: "source".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1586,6 +1602,7 @@ mod tests {
                 worker_name: "target".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: vec![session_store::WorkerPeer {
@@ -1599,7 +1616,7 @@ mod tests {
             store,
             "source".into(),
             runtime_base.clone(),
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
 
@@ -1689,6 +1706,7 @@ mod tests {
                 worker_name: "source".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: vec![child("target", &socket)],
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -1701,7 +1719,7 @@ mod tests {
             store,
             "source".into(),
             runtime_base,
-            root.path().to_path_buf(),
+            Some(root.path().to_path_buf()),
             SpawnedWorkerRegistry::new(runtime_dir),
         );
 

crates/worker/src/entrypoint.rs

@@ -2,7 +2,10 @@ use std::ffi::OsString;
 use std::path::{Path, PathBuf};
 use std::process::ExitCode;
 
-use crate::{PromptLoader, Worker, WorkerController};
+use crate::{
+    PromptLoader, Worker, WorkerController, WorkerFilesystemAuthority, WorkerWorkspaceContext,
+    WorkspaceId,
+};
 use clap::{CommandFactory, FromArgMatches, Parser};
 use manifest::{
     Permission, ProfileResolveOptions, ProfileResolver, ProfileSelector, ScopeConfig, ScopeRule,
@@ -103,6 +106,24 @@ fn runtime_workspace_root(cli: &Cli) -> Result<PathBuf, String> {
     }
 }
 
+fn runtime_workspace_context(workspace_root: &Path) -> WorkerWorkspaceContext {
+    WorkerWorkspaceContext::local_filesystem(read_workspace_id_hint(workspace_root))
+}
+
+fn read_workspace_id_hint(workspace_root: &Path) -> Option<WorkspaceId> {
+    let path = workspace_root.join(".yoi/workspace.toml");
+    let contents = std::fs::read_to_string(path).ok()?;
+    let value = toml::from_str::<toml::Value>(&contents).ok()?;
+    let id = value.get("id")?.as_str()?.to_string();
+    match WorkspaceId::new(id) {
+        Ok(id) => Some(id),
+        Err(err) => {
+            tracing::warn!("ignoring invalid workspace id in .yoi/workspace.toml: {err}");
+            None
+        }
+    }
+}
+
 fn runtime_worker_name(cli: &Cli, workspace_root: &Path) -> String {
     cli.worker
         .as_deref()
@@ -511,6 +532,9 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
         }
     };
     let store = CombinedStore::new(session_store, worker_metadata_store);
+    let filesystem_authority =
+        WorkerFilesystemAuthority::local(workspace_root.clone(), cwd.clone());
+    let workspace_context = runtime_workspace_context(&workspace_root);
 
     let mut worker = if cli.adopt {
         let callback = match cli.callback.clone() {
@@ -525,8 +549,8 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
             store,
             loader,
             callback,
-            workspace_root.clone(),
+            workspace_context.clone(),
-            cwd.clone(),
+            filesystem_authority.clone(),
         )
         .await
         {
@@ -556,8 +580,8 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
             manifest,
             store,
             loader,
-            workspace_root.clone(),
+            workspace_context.clone(),
-            cwd.clone(),
+            filesystem_authority.clone(),
         )
         .await
         {
@@ -576,8 +600,8 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
                     manifest,
                     store,
                     loader,
-                    workspace_root.clone(),
+                    workspace_context.clone(),
-                    cwd.clone(),
+                    filesystem_authority.clone(),
                 )
                 .await
                 {
@@ -597,8 +621,8 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
                     manifest,
                     store,
                     loader,
-                    workspace_root.clone(),
+                    workspace_context.clone(),
-                    cwd.clone(),
+                    filesystem_authority.clone(),
                 )
                 .await
                 {
@@ -619,8 +643,8 @@ async fn run_cli_inner(cli: Cli) -> ExitCode {
             manifest,
             store,
             loader,
-            workspace_root.clone(),
+            workspace_context.clone(),
-            cwd.clone(),
+            filesystem_authority.clone(),
         )
         .await
         {
@@ -845,15 +869,15 @@ recursive = true
                 external.display()
             ),
         );
-        let profile = tmp.path().join("profile.lua");
+        let profile = tmp.path().join("profile.toml");
         write(
             &profile,
             r#"
-local yoi = require("yoi")
+slug = "override-scope"
-return yoi.profile {
+
-  slug = "override-scope",
+[model]
-  model = { scheme = "anthropic", model_id = "test-model" },
+scheme = "anthropic"
-}
+model_id = "test-model"
 "#,
         );
         let cli = Cli::try_parse_from([
@@ -889,7 +913,7 @@ return yoi.profile {
     #[test]
     fn profile_uses_selected_profile() {
         let tmp = TempDir::new().unwrap();
-        let profile = tmp.path().join("profile.lua");
+        let profile = tmp.path().join("profile.toml");
         let cli = Cli::try_parse_from([
             "yoi worker",
             "--profile",
@@ -1223,8 +1247,14 @@ permission = "write"
     fn profile_conflicts_with_manifest_and_restore_modes() {
         let segment_id = session_store::new_segment_id().to_string();
         for args in [
-            vec!["yoi worker", "--profile", "p.lua", "--manifest", "m.toml"],
+            vec!["yoi worker", "--profile", "p.toml", "--manifest", "m.toml"],
-            vec!["yoi worker", "--profile", "p.lua", "--session", &segment_id],
+            vec![
+                "yoi worker",
+                "--profile",
+                "p.toml",
+                "--session",
+                &segment_id,
+            ],
         ] {
             let err = Cli::try_parse_from(args).unwrap_err();
             assert_eq!(err.kind(), clap::error::ErrorKind::ArgumentConflict);
@@ -1233,9 +1263,9 @@ permission = "write"
 
     #[test]
     fn profile_and_worker_are_independent_startup_inputs() {
-        let cli =
+        let cli = Cli::try_parse_from(["yoi worker", "--profile", "p.toml", "--worker", "agent"])
-            Cli::try_parse_from(["yoi worker", "--profile", "p.lua", "--worker", "agent"]).unwrap();
+            .unwrap();
-        assert_eq!(cli.profile.as_deref(), Some("p.lua"));
+        assert_eq!(cli.profile.as_deref(), Some("p.toml"));
         assert_eq!(cli.worker.as_deref(), Some("agent"));
     }
 

crates/worker/src/feature.rs

@@ -243,7 +243,7 @@ impl ProtocolProviderContribution {
 #[serde(rename_all = "snake_case")]
 pub enum FeatureRuntimeKind {
     Builtin,
-    LuaProfile,
+    Profile,
     ExternalPlugin,
     ProtocolProvider,
 }

crates/worker/src/lib.rs

@@ -38,4 +38,7 @@ pub use provider::{ProviderError, build_client};
 pub use runtime::dir::RuntimeDir;
 pub use segment_log_sink::SegmentLogSink;
 pub use shared_state::WorkerSharedState;
-pub use worker::{Worker, WorkerError, WorkerRunResult, apply_worker_manifest};
+pub use worker::{
+    LocalWorkingDirectory, Worker, WorkerError, WorkerFilesystemAuthority, WorkerRunResult,
+    WorkerWorkspaceContext, WorkspaceClient, WorkspaceId, WorkspaceIdError, apply_worker_manifest,
+};

crates/worker/src/prompt/system.rs

@@ -13,7 +13,9 @@
 //! `set_system_prompt`. Subsequent turns and compactions reuse that
 //! materialised string verbatim.
 
+use std::borrow::Cow;
 use std::collections::BTreeMap;
+#[cfg(test)]
 use std::path::Path;
 use std::sync::Arc;
 
@@ -146,7 +148,7 @@ impl std::fmt::Debug for SystemPromptTemplate {
 /// templates cannot drop them on the floor.
 pub struct SystemPromptContext<'a> {
     pub now: DateTime<Utc>,
-    pub cwd: &'a Path,
+    pub cwd: Cow<'a, str>,
     /// Language policy exposed to instruction templates as `{{ language }}`.
     pub language: &'a str,
     pub scope: &'a Scope,
@@ -189,7 +191,7 @@ impl<'a> SystemPromptContext<'a> {
             "datetime".into(),
             Value::from(self.now.to_rfc3339_opts(SecondsFormat::Secs, true)),
         );
-        root.insert("cwd".into(), Value::from(self.cwd.display().to_string()));
+        root.insert("cwd".into(), Value::from(self.cwd.as_ref()));
         root.insert("language".into(), Value::from(self.language));
         root.insert(
             "tools".into(),
@@ -442,7 +444,7 @@ mod tests {
     ) -> SystemPromptContext<'a> {
         SystemPromptContext {
             now: fixed_now(),
-            cwd,
+            cwd: cwd.display().to_string().into(),
             language: manifest::defaults::WORKER_LANGUAGE,
             scope,
             tool_names: tools,
@@ -461,7 +463,7 @@ mod tests {
     ) -> SystemPromptContext<'a> {
         SystemPromptContext {
             now: fixed_now(),
-            cwd,
+            cwd: cwd.display().to_string().into(),
             language: manifest::defaults::WORKER_LANGUAGE,
             scope,
             tool_names: Vec::new(),
@@ -480,7 +482,7 @@ mod tests {
     ) -> SystemPromptContext<'a> {
         SystemPromptContext {
             now: fixed_now(),
-            cwd,
+            cwd: cwd.display().to_string().into(),
             language: manifest::defaults::WORKER_LANGUAGE,
             scope,
             tool_names: Vec::new(),
@@ -499,7 +501,7 @@ mod tests {
     ) -> SystemPromptContext<'a> {
         SystemPromptContext {
             now: fixed_now(),
-            cwd,
+            cwd: cwd.display().to_string().into(),
             language: manifest::defaults::WORKER_LANGUAGE,
             scope,
             tool_names: Vec::new(),

crates/worker/src/spawn/tool.rs

@@ -183,7 +183,9 @@ fn parse_spawn_profile_selector(raw: Option<&str>) -> Result<SpawnProfileSelecto
         || raw.starts_with("./")
         || raw.starts_with("../")
         || raw.contains('/')
-        || raw.ends_with(".lua")
+        || raw.ends_with(".dcdl")
+        || raw.ends_with(".json")
+        || raw.ends_with(".toml")
         || raw.ends_with(".nix")
     {
         return Err(format!(
@@ -1181,25 +1183,31 @@ mod tests {
     }
 
     const CODER_PROFILE: &str = r#"
-local profile = require("yoi.profile")
+slug = "coder"
-local scope = require("yoi.scope")
+scope = "workspace_write"
-return profile {
+
-  slug = "coder",
+[model]
-  model = { scheme = "anthropic", model_id = "coder-model" },
+scheme = "anthropic"
-  engine = { instruction = "$yoi/coder", language = "Coderish", max_tokens = 2222 },
+model_id = "coder-model"
-  scope = scope.workspace_write(),
+
-}
+[engine]
+instruction = "$yoi/coder"
+language = "Coderish"
+max_tokens = 2222
 "#;
 
     const REVIEWER_PROFILE: &str = r#"
-local profile = require("yoi.profile")
+slug = "reviewer"
-local scope = require("yoi.scope")
+scope = "workspace_write"
-return profile {
+
-  slug = "reviewer",
+[model]
-  model = { scheme = "anthropic", model_id = "reviewer-model" },
+scheme = "anthropic"
-  engine = { instruction = "$yoi/reviewer", language = "Reviewerish", max_tokens = 3333 },
+model_id = "reviewer-model"
-  scope = scope.workspace_write(),
+
-}
+[engine]
+instruction = "$yoi/reviewer"
+language = "Reviewerish"
+max_tokens = 3333
 "#;
 
     #[test]
@@ -1297,8 +1305,8 @@ return profile {
             &project,
             Some("reviewer"),
             &[
-                ("coder", "coder.lua", CODER_PROFILE),
+                ("coder", "coder.toml", CODER_PROFILE),
-                ("reviewer", "reviewer.lua", REVIEWER_PROFILE),
+                ("reviewer", "reviewer.toml", REVIEWER_PROFILE),
             ],
         );
         let parent = parent_manifest(&project, None);
@@ -1333,8 +1341,8 @@ return profile {
             &project,
             Some("coder"),
             &[
-                ("coder", "coder.lua", CODER_PROFILE),
+                ("coder", "coder.toml", CODER_PROFILE),
-                ("reviewer", "reviewer.lua", REVIEWER_PROFILE),
+                ("reviewer", "reviewer.toml", REVIEWER_PROFILE),
             ],
         );
         let parent = parent_manifest(&project, None);
@@ -1414,7 +1422,7 @@ return profile {
         let available = write_project_profile_registry(
             &project,
             Some("reviewer"),
-            &[("reviewer", "reviewer.lua", REVIEWER_PROFILE)],
+            &[("reviewer", "reviewer.toml", REVIEWER_PROFILE)],
         );
         let parent = parent_manifest(&project, None);
         let scope = vec![abs_rule(&delegated, Permission::Write)];
@@ -1451,7 +1459,7 @@ return profile {
         let available = write_project_profile_registry(
             &project,
             Some("reviewer"),
-            &[("reviewer", "reviewer.lua", REVIEWER_PROFILE)],
+            &[("reviewer", "reviewer.toml", REVIEWER_PROFILE)],
         );
         let parent = parent_manifest(&parent_root, Some(&parent_root.join("deny")));
         let scope = vec![abs_rule(&delegated, Permission::Read)];
@@ -1497,12 +1505,12 @@ return profile {
         let available = write_project_profile_registry(
             &project,
             None,
-            &[("coder", "coder.lua", CODER_PROFILE)],
+            &[("coder", "coder.toml", CODER_PROFILE)],
         );
         let parent = parent_manifest(&project, None);
         let scope = vec![abs_rule(&project, Permission::Read)];
 
-        let invalid = parse_spawn_profile_selector(Some("./reviewer.lua"))
+        let invalid = parse_spawn_profile_selector(Some("./reviewer.toml"))
             .map_err(|msg| format!("{msg}{}", available.error_suffix()))
             .unwrap_err();
         assert!(invalid.contains("Use `default`, `inherit`"));
@@ -1521,7 +1529,7 @@ return profile {
         assert!(default_config.contains("\"name\":\"child\""));
 
         let user_config = tmp.path().join("user-profiles.toml");
-        std::fs::write(&user_config, "[profile]\ncoder = \"user-coder.lua\"\n").unwrap();
+        std::fs::write(&user_config, "[profile]\ncoder = \"user-coder.toml\"\n").unwrap();
         let project_config = project.join(".yoi/profiles.toml");
         let ambiguous = AvailableProfiles {
             registry: Some(
@@ -1550,9 +1558,9 @@ return profile {
     #[test]
     fn spawn_profile_selector_rejects_path_like_values() {
         for raw in [
-            "./reviewer.lua",
+            "./reviewer.toml",
-            "path:./reviewer.lua",
+            "path:./reviewer.toml",
-            "/tmp/reviewer.lua",
+            "/tmp/reviewer.toml",
             "legacy.nix",
         ] {
             let err = parse_spawn_profile_selector(Some(raw)).unwrap_err();

crates/worker/src/ticket_event_notify.rs

@@ -384,6 +384,7 @@ mod tests {
                 worker_name: "orchestrator".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -395,6 +396,7 @@ mod tests {
                 worker_name: "companion".into(),
                 active: None,
                 workspace_root: None,
+                workspace_id: None,
                 spawned_children: Vec::new(),
                 reclaimed_children: Vec::new(),
                 peers: Vec::new(),
@@ -414,7 +416,7 @@ mod tests {
                 store,
                 "orchestrator".into(),
                 runtime_base.clone(),
-                root.path().to_path_buf(),
+                Some(root.path().to_path_buf()),
                 SpawnedWorkerRegistry::new(runtime_dir),
             ),
             "companion",

crates/worker/tests/compact_events_test.rs

@@ -164,7 +164,14 @@ async fn make_worker_with_manifest(
     std::mem::forget(pwd_tmp);
 
     let worker = Engine::new(client);
-    let mut worker = Worker::new(manifest, worker, store, pwd, scope)
+    let mut worker = Worker::new(
+        manifest,
+        worker,
+        store,
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
     .await
     .unwrap();
     worker.enable_worker_metadata_write_through().unwrap();

crates/worker/tests/consolidation_test.rs

@@ -170,7 +170,14 @@ async fn make_worker_with(
 
     let scope = worker::Scope::writable(&pwd).unwrap();
     let worker = Engine::new(client);
-    Worker::new(manifest, worker, store, pwd, scope)
+    Worker::new(
+        manifest,
+        worker,
+        store,
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
     .await
     .unwrap()
 }

crates/worker/tests/controller_test.rs

@@ -12,7 +12,10 @@ use llm_engine::tool::{Tool, ToolDefinition, ToolError, ToolMeta, ToolOutput};
 use session_store::{CombinedStore, FsWorkerStore};
 use session_store::{FsStore, LogEntry};
 
-use worker::{Event, Method, Worker, WorkerController, WorkerHandle, WorkerManifest, WorkerStatus};
+use worker::{
+    Event, Method, Worker, WorkerController, WorkerFilesystemAuthority, WorkerHandle,
+    WorkerManifest, WorkerStatus, WorkerWorkspaceContext,
+};
 
 type TestStore = CombinedStore<FsStore, FsWorkerStore>;
 
@@ -186,7 +189,15 @@ async fn make_worker_with_pwd_and_manifest(
     std::mem::forget(pwd_tmp);
 
     let worker = Engine::new(client);
-    let worker = Worker::new(manifest, worker, store, pwd.clone(), scope)
+    let authority = WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone());
+    let worker = Worker::new(
+        manifest,
+        worker,
+        store,
+        WorkerWorkspaceContext::local_filesystem(None),
+        authority,
+        scope,
+    )
     .await
     .unwrap();
     (worker, pwd)

crates/worker/tests/session_metrics_test.rs

@@ -190,7 +190,14 @@ async fn make_worker(
     let mut worker = Engine::new(client);
     worker.register_tool(big_content_tool_definition(tool_name));
 
-    let worker = Worker::new(manifest, worker, store, pwd, scope)
+    let worker = Worker::new(
+        manifest,
+        worker,
+        store,
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
     .await
     .unwrap();
     (worker, store_tmp, pwd_tmp)
@@ -453,7 +460,14 @@ async fn metric_write_failure_emits_warn_alert_and_does_not_abort_run() {
     // the failure path: at least one metric attempts to write.
     let client = MockClient::new(vec![text_response_with_cache("hi", 0, 0)]);
     let worker = Engine::new(client);
-    let mut worker = Worker::new(manifest, worker, store.clone(), pwd, scope)
+    let mut worker = Worker::new(
+        manifest,
+        worker,
+        store.clone(),
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
     .await
     .unwrap();
 
@@ -522,7 +536,14 @@ permission = "write"
     let pwd = pwd_tmp.path().to_path_buf();
     let scope = worker::Scope::writable(&pwd).unwrap();
     let worker = Engine::new(client);
-    let mut worker = Worker::new(manifest, worker, store.clone(), pwd, scope)
+    let mut worker = Worker::new(
+        manifest,
+        worker,
+        store.clone(),
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
     .await
     .unwrap();
     let session_id = worker.session_id();

crates/worker/tests/system_prompt_template_test.rs

@@ -123,7 +123,15 @@ async fn make_worker_with_body(
     std::mem::forget(user_prompts_tmp);
 
     let worker = Engine::new(client);
-    let mut worker = Worker::new(manifest, worker, store, pwd.clone(), scope).await?;
+    let mut worker = Worker::new(
+        manifest,
+        worker,
+        store,
+        worker::WorkerWorkspaceContext::local_filesystem(None),
+        worker::WorkerFilesystemAuthority::local(pwd.clone(), pwd.clone()),
+        scope,
+    )
+    .await?;
 
     let template = SystemPromptTemplate::parse("$user/test", loader)
         .map_err(|source| WorkerError::InvalidSystemPromptTemplate { source })?;

crates/workspace-server/src/companion.rs

@@ -1,35 +1,13 @@
-use std::collections::BTreeMap;
-use std::sync::{Arc, Mutex};
-
-use chrono::Utc;
 use serde::{Deserialize, Serialize};
-use worker_runtime::catalog::ProfileSelector;
-use worker_runtime::config_bundle::{
-    ConfigBundle, ConfigBundleMetadata, ConfigBundleProvenance, ConfigProfileDescriptor,
-};
-use worker_runtime::profile_archive::{ProfileSourceArchive, ProfileSourceArchiveInput};
 
-use crate::hosts::{
+use crate::hosts::{DiagnosticSeverity, RuntimeDiagnostic, WorkerSummary};
-    DiagnosticSeverity, RuntimeDiagnostic, RuntimeRegistry, WorkerInputKind, WorkerInputRequest,
-    WorkerOperationState, WorkerSpawnAcceptanceRequirement, WorkerSpawnIntent, WorkerSpawnRequest,
-    WorkerSummary, WorkerTranscriptItem as RuntimeTranscriptItem, WorkerTranscriptProjection,
-};
-
-const COMPANION_RUNTIME_ID: &str = "embedded-worker-runtime";
-const COMPANION_PROFILE_ID: &str = "builtin:companion";
-const COMPANION_CONFIG_BUNDLE_ID: &str = "workspace-companion-config";
-const MAX_MESSAGE_CHARS: usize = 8_000;
 
 #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
 #[serde(rename_all = "snake_case")]
 pub enum CompanionState {
-    Ready,
+    Disabled,
-    Busy,
-    Error,
-    Timeout,
-    Cancelled,
-    Accepted,
     Rejected,
+    Cancelled,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
@@ -94,698 +72,77 @@ pub struct CompanionTranscriptItem {
     pub status: String,
 }
 
-#[derive(Debug)]
+pub struct CompanionConsole;
-struct CompanionWorkerState {
-    state: CompanionState,
-    worker: Option<WorkerSummary>,
-    diagnostics: Vec<RuntimeDiagnostic>,
-}
-
-pub struct CompanionConsole {
-    runtime: Arc<RuntimeRegistry>,
-    worker: Mutex<CompanionWorkerState>,
-}
 
 impl CompanionConsole {
-    pub fn new(runtime: Arc<RuntimeRegistry>) -> Self {
+    pub fn disabled() -> Self {
-        let initial = spawn_companion_worker(&runtime);
+        Self
-        Self {
-            runtime,
-            worker: Mutex::new(initial),
-        }
     }
 
     pub fn status(&self) -> CompanionStatusResponse {
-        match self.refresh_worker_state() {
+        CompanionStatusResponse {
-            Ok(worker) => CompanionStatusResponse {
+            state: CompanionState::Disabled,
-                state: worker.state,
-                worker: worker.worker.clone(),
-                transport: companion_transport(worker.worker.as_ref()),
-                diagnostics: worker.diagnostics.clone(),
-            },
-            Err(diagnostic) => CompanionStatusResponse {
-                state: CompanionState::Error,
             worker: None,
-                transport: companion_transport(None),
+            transport: disabled_transport(),
-                diagnostics: vec![diagnostic],
+            diagnostics: vec![disabled_diagnostic()],
-            },
         }
     }
 
     pub fn transcript(&self, start: usize, limit: usize) -> CompanionTranscriptProjection {
-        match self.current_worker() {
+        CompanionTranscriptProjection {
-            Ok(Some(worker)) => {
+            state: CompanionState::Disabled,
-                match self
-                    .runtime
-                    .transcript(COMPANION_RUNTIME_ID, &worker.worker_id, start, limit)
-                {
-                    Ok(transcript) => project_runtime_transcript(
-                        &transcript,
-                        companion_state_for_worker(&worker),
-                        Vec::new(),
-                    ),
-                    Err(error) => CompanionTranscriptProjection {
-                        state: CompanionState::Error,
             start,
             limit,
             total_items: 0,
             next_start: None,
             items: Vec::new(),
-                        diagnostics: vec![diagnostic(
+            diagnostics: vec![disabled_diagnostic()],
-                            "companion_transcript_unavailable",
-                            DiagnosticSeverity::Error,
-                            format!("Companion Worker transcript is unavailable: {error:?}"),
-                        )],
-                    },
-                }
-            }
-            Ok(None) => CompanionTranscriptProjection {
-                state: CompanionState::Error,
-                start,
-                limit,
-                total_items: 0,
-                next_start: None,
-                items: Vec::new(),
-                diagnostics: vec![diagnostic(
-                    "companion_worker_unavailable",
-                    DiagnosticSeverity::Error,
-                    "Workspace Companion Worker is unavailable",
-                )],
-            },
-            Err(diagnostic) => CompanionTranscriptProjection {
-                state: CompanionState::Error,
-                start,
-                limit,
-                total_items: 0,
-                next_start: None,
-                items: Vec::new(),
-                diagnostics: vec![diagnostic],
-            },
         }
     }
 
-    pub fn send_message(&self, request: CompanionMessageRequest) -> CompanionMessageResponse {
+    pub fn send_message(&self, _request: CompanionMessageRequest) -> CompanionMessageResponse {
-        let content = request.content.trim().to_string();
+        disabled_message_response(CompanionState::Rejected)
-        if content.is_empty() {
-            return self.rejected_message_response(diagnostic(
-                "companion_message_empty",
-                DiagnosticSeverity::Warning,
-                "Companion message content is empty",
-            ));
-        }
-        if content.chars().count() > MAX_MESSAGE_CHARS {
-            return self.rejected_message_response(diagnostic(
-                "companion_message_too_large",
-                DiagnosticSeverity::Warning,
-                format!("Companion message exceeds the {MAX_MESSAGE_CHARS} character limit"),
-            ));
-        }
-
-        let worker = match self.current_worker() {
-            Ok(Some(worker)) => worker,
-            Ok(None) => {
-                return self.rejected_message_response(diagnostic(
-                    "companion_worker_unavailable",
-                    DiagnosticSeverity::Error,
-                    "Workspace Companion Worker is unavailable",
-                ));
-            }
-            Err(diagnostic) => return self.rejected_message_response(diagnostic),
-        };
-
-        let response = self.runtime.send_input(
-            COMPANION_RUNTIME_ID,
-            &worker.worker_id,
-            WorkerInputRequest {
-                kind: WorkerInputKind::User,
-                content: content.clone(),
-            },
-        );
-
-        match response {
-            Ok(result) => {
-                let state = match result.state {
-                    WorkerOperationState::Accepted => CompanionState::Accepted,
-                    WorkerOperationState::Unsupported | WorkerOperationState::Rejected => {
-                        CompanionState::Rejected
-                    }
-                };
-                let diagnostics = if result.diagnostics.is_empty() {
-                    Vec::new()
-                } else {
-                    result.diagnostics.clone()
-                };
-                let projection = self.transcript(0, 200);
-                CompanionMessageResponse {
-                    state,
-                    worker: projection_worker(&self.status()),
-                    user_item: projection
-                        .items
-                        .iter()
-                        .rev()
-                        .find(|item| item.role == "user" && item.content == content)
-                        .cloned(),
-                    assistant_item: projection
-                        .items
-                        .iter()
-                        .rev()
-                        .find(|item| item.role == "assistant")
-                        .cloned(),
-                    transcript: projection,
-                    diagnostics,
-                }
-            }
-            Err(error) => self.rejected_message_response(diagnostic(
-                "companion_worker_input_failed",
-                DiagnosticSeverity::Error,
-                format!("Companion Worker input dispatch failed: {error:?}"),
-            )),
-        }
     }
 
     pub fn cancel(&self, _request: CompanionCancelRequest) -> CompanionMessageResponse {
-        let diagnostics = vec![diagnostic(
+        disabled_message_response(CompanionState::Cancelled)
-            "companion_cancel_no_active_run",
+    }
-            DiagnosticSeverity::Info,
+}
-            "Workspace Companion has no active generation to cancel",
+
-        )];
+fn disabled_message_response(state: CompanionState) -> CompanionMessageResponse {
-        let status = self.status();
-        let projection = self.transcript(0, 200);
     CompanionMessageResponse {
-            state: CompanionState::Cancelled,
-            worker: status.worker,
-            user_item: None,
-            assistant_item: projection
-                .items
-                .iter()
-                .rev()
-                .find(|item| item.role == "assistant")
-                .cloned(),
-            transcript: projection,
-            diagnostics,
-        }
-    }
-
-    fn rejected_message_response(&self, diagnostic: RuntimeDiagnostic) -> CompanionMessageResponse {
-        let status = self.status();
-        let projection = self.transcript(0, 200);
-        CompanionMessageResponse {
-            state: CompanionState::Rejected,
-            worker: status.worker,
-            user_item: None,
-            assistant_item: projection
-                .items
-                .iter()
-                .rev()
-                .find(|item| item.role == "assistant")
-                .cloned(),
-            transcript: projection,
-            diagnostics: vec![diagnostic],
-        }
-    }
-
-    fn current_worker(&self) -> Result<Option<WorkerSummary>, RuntimeDiagnostic> {
-        self.refresh_worker_state()
-            .map(|state| state.worker.clone())
-    }
-
-    fn refresh_worker_state(&self) -> Result<CompanionWorkerState, RuntimeDiagnostic> {
-        let mut state = self.worker.lock().map_err(|_| {
-            diagnostic(
-                "companion_state_unavailable",
-                DiagnosticSeverity::Error,
-                "Companion state is unavailable",
-            )
-        })?;
-        let Some(worker_id) = state.worker.as_ref().map(|worker| worker.worker_id.clone()) else {
-            return Ok(CompanionWorkerState {
-                state: state.state,
-                worker: None,
-                diagnostics: state.diagnostics.clone(),
-            });
-        };
-
-        match self.runtime.worker(COMPANION_RUNTIME_ID, &worker_id) {
-            Ok(worker) => {
-                let mut diagnostics = if worker.capabilities.can_accept_input {
-                    Vec::new()
-                } else {
-                    state.diagnostics.clone()
-                };
-                if !worker.capabilities.can_accept_input
-                    && !diagnostics
-                        .iter()
-                        .any(|diagnostic| diagnostic.code == "companion_worker_not_input_capable")
-                {
-                    diagnostics.push(companion_not_input_capable_diagnostic(&worker));
-                }
-                state.state = companion_state_for_worker(&worker);
-                state.worker = Some(worker);
-                state.diagnostics = diagnostics;
-            }
-            Err(error) => {
-                state.state = CompanionState::Error;
-                state.diagnostics = vec![diagnostic(
-                    "companion_worker_lookup_failed",
-                    DiagnosticSeverity::Error,
-                    format!("Companion Worker lookup failed: {error:?}"),
-                )];
-            }
-        }
-
-        Ok(CompanionWorkerState {
-            state: state.state,
-            worker: state.worker.clone(),
-            diagnostics: state.diagnostics.clone(),
-        })
-    }
-}
-
-fn projection_worker(status: &CompanionStatusResponse) -> Option<WorkerSummary> {
-    status.worker.clone()
-}
-
-fn spawn_companion_worker(runtime: &RuntimeRegistry) -> CompanionWorkerState {
-    let selector = companion_profile_selector();
-    let mut diagnostics = Vec::new();
-    let config_bundle = companion_config_bundle();
-
-    match runtime.sync_config_bundle(COMPANION_RUNTIME_ID, config_bundle) {
-        Ok(result) => diagnostics.extend(result.diagnostics),
-        Err(error) => diagnostics.push(diagnostic(
-            "companion_config_bundle_sync_failed",
-            DiagnosticSeverity::Error,
-            format!("Workspace Companion config bundle sync failed: {error:?}"),
-        )),
-    }
-
-    let response = runtime.spawn_worker(
-        COMPANION_RUNTIME_ID,
-        WorkerSpawnRequest {
-            intent: WorkerSpawnIntent::WorkspaceCompanion,
-            requested_worker_name: Some("workspace-companion".to_string()),
-            acceptance: WorkerSpawnAcceptanceRequirement::RunAccepted {
-                expected_segments: 0,
-            },
-            profile: Some(selector),
-            initial_input: None,
-            working_directory_request: None,
-            resolved_working_directory_request: None,
-            resolved_working_directory: None,
-            resolved_config_bundle: None,
-        },
-    );
-
-    match response {
-        Ok(response) => {
-            diagnostics.extend(response.diagnostics);
-            if let Some(worker) = response.worker {
-                if !worker.capabilities.can_accept_input {
-                    diagnostics.push(companion_not_input_capable_diagnostic(&worker));
-                }
-                CompanionWorkerState {
-                    state: companion_state_for_worker(&worker),
-                    worker: Some(worker),
-                    diagnostics,
-                }
-            } else {
-                diagnostics.push(diagnostic(
-                    "companion_worker_missing",
-                    DiagnosticSeverity::Error,
-                    "Workspace Companion Worker spawn did not return a Worker projection",
-                ));
-                CompanionWorkerState {
-                    state: CompanionState::Error,
-                    worker: None,
-                    diagnostics,
-                }
-            }
-        }
-        Err(error) => CompanionWorkerState {
-            state: CompanionState::Error,
-            worker: None,
-            diagnostics: vec![diagnostic(
-                "companion_worker_spawn_failed",
-                DiagnosticSeverity::Error,
-                format!("Workspace Companion Worker spawn failed: {error:?}"),
-            )],
-        },
-    }
-}
-
-fn companion_profile_selector() -> ProfileSelector {
-    ProfileSelector::Builtin(COMPANION_PROFILE_ID.to_string())
-}
-
-fn companion_config_bundle() -> ConfigBundle {
-    ConfigBundle {
-        metadata: ConfigBundleMetadata {
-            id: COMPANION_CONFIG_BUNDLE_ID.to_string(),
-            digest: String::new(),
-            revision: "1".to_string(),
-            workspace_id: "workspace-companion".to_string(),
-            created_at: Utc::now().to_rfc3339(),
-            provenance: ConfigBundleProvenance {
-                source: "workspace-server".to_string(),
-                detail: Some("workspace-companion".to_string()),
-            },
-        },
-        profiles: vec![ConfigProfileDescriptor {
-            selector: companion_profile_selector(),
-            label: Some("Workspace Companion".to_string()),
-        }],
-        declarations: Vec::new(),
-        profile_source_archive: Some(companion_profile_archive()),
-        profile_source_archive_handle: None,
-    }
-    .with_computed_digest()
-}
-
-fn companion_profile_archive() -> ProfileSourceArchive {
-    let mut entrypoints = BTreeMap::new();
-    entrypoints.insert("default".to_string(), "profiles/companion.dcdl".to_string());
-    entrypoints.insert(
-        COMPANION_PROFILE_ID.to_string(),
-        "profiles/companion.dcdl".to_string(),
-    );
-    let mut sources = BTreeMap::new();
-    sources.insert(
-        "profiles/companion.dcdl".to_string(),
-        include_str!("../../../resources/profiles/companion.dcdl").to_string(),
-    );
-    ProfileSourceArchive::build(ProfileSourceArchiveInput {
-        id: "workspace-companion-profile-archive-v1".to_string(),
-        entrypoints,
-        imports: BTreeMap::new(),
-        sources,
-    })
-    .expect("builtin Companion Decodal profile source archive is valid")
-}
-
-fn companion_state_for_worker(worker: &WorkerSummary) -> CompanionState {
-    if !worker.capabilities.can_accept_input {
-        return CompanionState::Error;
-    }
-    match worker.status.as_str() {
-        "busy" | "running" | "stopping" => CompanionState::Busy,
-        "errored" | "error" | "stopped" | "unavailable" => CompanionState::Error,
-        _ => CompanionState::Ready,
-    }
-}
-
-fn companion_not_input_capable_diagnostic(worker: &WorkerSummary) -> RuntimeDiagnostic {
-    diagnostic(
-        "companion_worker_not_input_capable",
-        DiagnosticSeverity::Error,
-        format!(
-            "Workspace Companion Worker '{}' is not input-capable; check profile, provider, secret, and authority diagnostics",
-            worker.worker_id
-        ),
-    )
-}
-
-fn project_runtime_transcript(
-    transcript: &WorkerTranscriptProjection,
-    state: CompanionState,
-    diagnostics: Vec<RuntimeDiagnostic>,
-) -> CompanionTranscriptProjection {
-    CompanionTranscriptProjection {
         state,
-        start: transcript.start,
+        worker: None,
-        limit: transcript.limit,
+        user_item: None,
-        total_items: transcript.total_items,
+        assistant_item: None,
-        next_start: transcript.next_start,
+        transcript: CompanionTranscriptProjection {
-        items: transcript
+            state: CompanionState::Disabled,
-            .items
+            start: 0,
-            .iter()
+            limit: 200,
-            .map(project_runtime_transcript_item)
+            total_items: 0,
-            .collect(),
+            next_start: None,
-        diagnostics,
+            items: Vec::new(),
+            diagnostics: vec![disabled_diagnostic()],
+        },
+        diagnostics: vec![disabled_diagnostic()],
     }
 }
 
-fn project_runtime_transcript_item(item: &RuntimeTranscriptItem) -> CompanionTranscriptItem {
+fn disabled_transport() -> CompanionTransportSummary {
-    CompanionTranscriptItem {
-        sequence: item.sequence,
-        role: item.role.clone(),
-        content: item.content.clone(),
-        created_at: format!("runtime_sequence:{}", item.sequence),
-        source: "worker_runtime".to_string(),
-        status: "committed".to_string(),
-    }
-}
-
-fn companion_transport(worker: Option<&WorkerSummary>) -> CompanionTransportSummary {
-    if worker.is_some_and(|worker| worker.capabilities.can_accept_input) {
     CompanionTransportSummary {
-            kind: "embedded_worker_runtime".to_string(),
+        kind: "none".to_string(),
-            completion: "connected".to_string(),
+        completion: "disabled".to_string(),
         limitation:
-                "Workspace Companion input is dispatched through the normal Worker runtime path."
+            "Workspace Companion auto-start has been removed; create an explicit Worker instead."
                 .to_string(),
     }
-    } else {
-        CompanionTransportSummary {
-            kind: "embedded_worker_runtime".to_string(),
-            completion: "not_input_capable".to_string(),
-            limitation:
-                "Workspace Companion is a Worker but is not input-capable; inspect typed diagnostics for missing profile, provider, secret, or authority."
-                    .to_string(),
-        }
-    }
 }
 
-fn diagnostic(
+fn disabled_diagnostic() -> RuntimeDiagnostic {
-    code: impl Into<String>,
-    severity: DiagnosticSeverity,
-    message: impl Into<String>,
-) -> RuntimeDiagnostic {
     RuntimeDiagnostic {
-        code: code.into(),
+        code: "companion_disabled".to_string(),
-        severity,
+        severity: DiagnosticSeverity::Info,
-        message: message.into(),
+        message: "Workspace Companion auto-start is disabled; create an explicit Worker instead."
-    }
+            .to_string(),
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::hosts::{EmbeddedWorkerRuntime, RuntimeRegistry};
-    use std::collections::HashMap;
-    use std::sync::Mutex as StdMutex;
-    use std::thread;
-    use std::time::{Duration, Instant};
-    use worker_runtime::execution::{
-        WorkerExecutionBackend, WorkerExecutionContext, WorkerExecutionHandle,
-        WorkerExecutionOperation, WorkerExecutionResult, WorkerExecutionRunState,
-        WorkerExecutionSpawnRequest, WorkerExecutionSpawnResult,
-    };
-    use worker_runtime::identity::WorkerRef;
-    use worker_runtime::interaction::WorkerInput;
-
-    #[derive(Default)]
-    struct DeterministicExecutionBackend {
-        contexts: StdMutex<HashMap<WorkerRef, WorkerExecutionContext>>,
-    }
-
-    impl WorkerExecutionBackend for DeterministicExecutionBackend {
-        fn backend_id(&self) -> &str {
-            "deterministic-companion-test"
-        }
-
-        fn spawn_worker(&self, request: WorkerExecutionSpawnRequest) -> WorkerExecutionSpawnResult {
-            self.contexts
-                .lock()
-                .unwrap()
-                .insert(request.worker_ref.clone(), request.context);
-            WorkerExecutionSpawnResult::Connected {
-                handle: WorkerExecutionHandle::new(
-                    request.worker_ref.clone(),
-                    "deterministic-companion-test",
-                ),
-                run_state: WorkerExecutionRunState::Idle,
-                working_directory: request
-                    .working_directory
-                    .as_ref()
-                    .map(|binding| binding.status()),
-            }
-        }
-
-        fn dispatch_input(
-            &self,
-            handle: &WorkerExecutionHandle,
-            request: WorkerInput,
-        ) -> WorkerExecutionResult {
-            let worker = handle.worker_ref().clone();
-            let context = self
-                .contexts
-                .lock()
-                .unwrap()
-                .get(&worker)
-                .cloned()
-                .expect("execution context");
-            let content = request.content.clone();
-            thread::spawn(move || {
-                thread::sleep(Duration::from_millis(25));
-                let _ = context.publish_protocol_event(protocol::Event::TextDone {
-                    text: format!("companion echoed: {content}"),
-                });
-            });
-            WorkerExecutionResult::accepted(
-                WorkerExecutionOperation::Input,
-                WorkerExecutionRunState::Idle,
-            )
-        }
-    }
-
-    #[test]
-    fn companion_spawns_worker_with_companion_profile_through_runtime_backend() {
-        let registry = RuntimeRegistry::for_workspace(
-            EmbeddedWorkerRuntime::new_memory_with_execution_backend(
-                "local:test",
-                Arc::new(DeterministicExecutionBackend::default()),
-            )
-            .unwrap(),
-        );
-        let registry = Arc::new(registry);
-        let companion = CompanionConsole::new(registry.clone());
-
-        let status = companion.status();
-        let worker = status.worker.clone().expect("companion worker");
-        assert_eq!(worker.runtime_id, COMPANION_RUNTIME_ID);
-        assert_eq!(worker.role.as_deref(), Some(COMPANION_PROFILE_ID));
-        assert!(worker.capabilities.can_accept_input);
-        assert_eq!(status.transport.completion, "connected");
-        assert!(status.diagnostics.is_empty());
-
-        let response = companion.send_message(CompanionMessageRequest {
-            content: "hello".to_string(),
-        });
-        assert_eq!(response.state, CompanionState::Accepted);
-        assert!(response.diagnostics.is_empty());
-        assert!(
-            response
-                .transcript
-                .items
-                .iter()
-                .any(|entry| entry.role == "user" && entry.content == "hello")
-        );
-
-        let worker_detail = registry
-            .worker(COMPANION_RUNTIME_ID, &worker.worker_id)
-            .expect("worker detail");
-        assert_eq!(worker_detail.profile.as_deref(), Some(COMPANION_PROFILE_ID));
-
-        let browser_payload = serde_json::to_string(&(status, response, worker_detail)).unwrap();
-        for forbidden in [
-            "/workspace/project",
-            "metadata.json",
-            ".jsonl",
-            "/run/user/",
-            "session",
-            "manifest",
-        ] {
-            assert!(
-                !browser_payload.contains(forbidden),
-                "companion projection leaked forbidden term {forbidden}: {browser_payload}"
-            );
-        }
-    }
-
-    #[test]
-    fn companion_dispatches_input_and_projects_assistant_output_from_worker_runtime() {
-        let registry = RuntimeRegistry::for_workspace(
-            EmbeddedWorkerRuntime::new_memory_with_execution_backend(
-                "local:test",
-                Arc::new(DeterministicExecutionBackend::default()),
-            )
-            .expect("embedded runtime"),
-        );
-        let registry = Arc::new(registry);
-        let companion = CompanionConsole::new(registry.clone());
-        let status = companion.status();
-        let worker = status.worker.clone().expect("companion worker");
-        assert_eq!(status.transport.completion, "connected");
-        assert_eq!(worker.profile.as_deref(), Some(COMPANION_PROFILE_ID));
-        assert!(worker.capabilities.can_accept_input);
-
-        let source = registry
-            .observation_source(COMPANION_RUNTIME_ID, &worker.worker_id)
-            .expect("observation source");
-        let crate::observation::RuntimeObservationSource::Embedded(source) = source else {
-            panic!("expected embedded observation source");
-        };
-        let cursor = source
-            .runtime
-            .worker_observation_cursor_now(&source.worker_ref)
-            .expect("observation cursor");
-
-        let response = companion.send_message(CompanionMessageRequest {
-            content: "hello runtime".to_string(),
-        });
-        assert_eq!(response.state, CompanionState::Accepted);
-        assert!(
-            response
-                .user_item
-                .as_ref()
-                .is_some_and(|item| item.role == "user" && item.content == "hello runtime")
-        );
-        assert!(response.diagnostics.is_empty());
-
-        let deadline = Instant::now() + Duration::from_secs(2);
-        let observed = loop {
-            let observed = source
-                .runtime
-                .read_worker_observation_events(&source.worker_ref, cursor)
-                .expect("observation events");
-            if observed.iter().any(|event| {
-                serde_json::to_string(event)
-                    .unwrap()
-                    .contains("companion echoed: hello runtime")
-            }) {
-                break observed;
-            }
-            assert!(
-                Instant::now() < deadline,
-                "timed out waiting for observation event"
-            );
-            thread::sleep(Duration::from_millis(20));
-        };
-        let observed_json = serde_json::to_string(&observed).unwrap();
-        assert!(observed_json.contains("companion echoed: hello runtime"));
-
-        let deadline = Instant::now() + Duration::from_secs(2);
-        let transcript = loop {
-            let transcript = companion.transcript(0, 20);
-            if transcript.items.iter().any(|item| {
-                item.role == "assistant" && item.content == "companion echoed: hello runtime"
-            }) {
-                break transcript;
-            }
-            assert!(
-                Instant::now() < deadline,
-                "timed out waiting for companion assistant output: {transcript:?}"
-            );
-            thread::sleep(Duration::from_millis(20));
-        };
-
-        assert!(
-            transcript
-                .items
-                .iter()
-                .any(|item| item.role == "user" && item.content == "hello runtime")
-        );
-        assert!(transcript.items.iter().any(|item| {
-            item.role == "assistant"
-                && item.source == "worker_runtime"
-                && item.status == "committed"
-        }));
-
-        let runtime_transcript = registry
-            .transcript(COMPANION_RUNTIME_ID, &worker.worker_id, 0, 20)
-            .expect("runtime transcript");
-        assert!(runtime_transcript.items.iter().any(|item| {
-            item.role == "assistant" && item.content == "companion echoed: hello runtime"
-        }));
     }
 }

crates/workspace-server/src/observation.rs

@@ -1,5 +1,5 @@
 use std::collections::{BTreeMap, VecDeque};
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
 
 use worker_runtime::identity::WorkerRef;
 use worker_runtime::observation::{WorkerObservationCursor, WorkerObservationEvent};
@@ -100,7 +100,7 @@ impl std::fmt::Debug for RuntimeObservationSource {
 pub struct RuntimeObservationUpstreamEvent {
     pub runtime_id: String,
     pub worker_id: String,
-    pub runtime_cursor: String,
+    pub runtime_event_id: String,
     pub payload: protocol::Event,
 }
 
@@ -116,11 +116,10 @@ pub enum ClientWorkerEventWsFrame {
     },
 }
 
-/// Backend-owned opaque event envelope. It intentionally omits Runtime endpoints,
+/// Backend-owned event envelope. It intentionally omits Runtime endpoints,
 /// credentials, sockets and session paths.
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct ClientWorkerEventWsEnvelope {
-    pub cursor: String,
     pub event_id: String,
     pub runtime_id: String,
     pub worker_id: String,
@@ -134,17 +133,10 @@ pub struct ClientWorkerEventWsDiagnostic {
     pub message: String,
 }
 
-#[derive(Clone, Debug, Default, Deserialize)]
-pub struct ClientWorkerEventsWsQuery {
-    pub cursor: Option<String>,
-}
-
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub enum ObservationProxyError {
     RuntimeUnavailable(String),
     WorkerNotFound(String),
-    CursorMalformed(String),
-    CursorUnknownOrExpired(String),
     UpstreamDisconnect(String),
     MalformedFrame(String),
     ObservationOnly,
@@ -155,8 +147,6 @@ impl ObservationProxyError {
         match self {
             ObservationProxyError::RuntimeUnavailable(_) => "backend.runtime_unavailable",
             ObservationProxyError::WorkerNotFound(_) => "backend.worker_not_found",
-            ObservationProxyError::CursorMalformed(_) => "backend.cursor_malformed",
-            ObservationProxyError::CursorUnknownOrExpired(_) => "backend.cursor_unknown_or_expired",
             ObservationProxyError::UpstreamDisconnect(_) => "backend.upstream_disconnect",
             ObservationProxyError::MalformedFrame(_) => "backend.malformed_frame",
             ObservationProxyError::ObservationOnly => "backend.observation_only",
@@ -167,8 +157,6 @@ impl ObservationProxyError {
         match self {
             ObservationProxyError::RuntimeUnavailable(message)
             | ObservationProxyError::WorkerNotFound(message)
-            | ObservationProxyError::CursorMalformed(message)
-            | ObservationProxyError::CursorUnknownOrExpired(message)
             | ObservationProxyError::UpstreamDisconnect(message)
             | ObservationProxyError::MalformedFrame(message) => message,
             ObservationProxyError::ObservationOnly => {
@@ -193,82 +181,22 @@ impl ClientWorkerEventWsFrame {
     }
 }
 
-#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub struct BackendObservationCursor {
-    pub sequence: u64,
-}
-
-impl BackendObservationCursor {
-    pub fn new(sequence: u64) -> Self {
-        Self { sequence }
-    }
-
-    pub fn zero() -> Self {
-        Self { sequence: 0 }
-    }
-
-    pub fn encode(self) -> String {
-        format!("bo_{:016x}", self.sequence)
-    }
-
-    pub fn decode(value: &str) -> Option<Self> {
-        let encoded = value.strip_prefix("bo_")?;
-        if encoded.len() != 16 {
-            return None;
-        }
-        u64::from_str_radix(encoded, 16)
-            .ok()
-            .map(|sequence| Self { sequence })
-    }
-}
-
-#[derive(Debug, Default)]
-struct BackendObservationState {
-    next_sequence: u64,
-    history: BTreeMap<ObservationKey, VecDeque<StoredBackendEvent>>,
-}
-
-impl BackendObservationState {
-    fn new() -> Self {
-        Self {
-            next_sequence: 1,
-            history: BTreeMap::new(),
-        }
-    }
-}
-
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
 struct ObservationKey {
     runtime_id: String,
     worker_id: String,
 }
 
-#[derive(Clone, Debug)]
-struct StoredBackendEvent {
-    sequence: u64,
-    runtime_cursor: String,
-    envelope: ClientWorkerEventWsEnvelope,
-}
-
-#[derive(Clone, Debug)]
-pub struct BackendObservationOpen {
-    pub replay: Vec<ClientWorkerEventWsEnvelope>,
-    pub runtime_cursor: Option<String>,
-    pub backend_cursor: BackendObservationCursor,
-}
-
 /// Backend-owned in-memory v0 observation proxy state.
 #[derive(Clone)]
 pub struct BackendObservationProxy {
     sources: Arc<BTreeMap<ObservationKey, RuntimeObservationSourceConfig>>,
-    state: Arc<Mutex<BackendObservationState>>,
 }
 
 impl std::fmt::Debug for BackendObservationProxy {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         f.debug_struct("BackendObservationProxy")
             .field("source_count", &self.sources.len())
-            .field("state", &"<omitted>")
             .finish()
     }
 }
@@ -289,7 +217,6 @@ impl BackendObservationProxy {
             .collect();
         Self {
             sources: Arc::new(sources),
-            state: Arc::new(Mutex::new(BackendObservationState::new())),
         }
     }
 
@@ -312,99 +239,13 @@ impl BackendObservationProxy {
             })
     }
 
-    pub fn open(
+    pub fn map_event(&self, event: RuntimeObservationUpstreamEvent) -> ClientWorkerEventWsEnvelope {
-        &self,
+        ClientWorkerEventWsEnvelope {
-        runtime_id: &str,
+            event_id: event.runtime_event_id,
-        worker_id: &str,
-        cursor: Option<&str>,
-    ) -> Result<BackendObservationOpen, ObservationProxyError> {
-        let key = ObservationKey {
-            runtime_id: runtime_id.to_string(),
-            worker_id: worker_id.to_string(),
-        };
-        let cursor = match cursor {
-            Some(raw) => BackendObservationCursor::decode(raw).ok_or_else(|| {
-                ObservationProxyError::CursorMalformed(format!(
-                    "malformed backend observation cursor: {raw}"
-                ))
-            })?,
-            None => BackendObservationCursor::zero(),
-        };
-        let state = self.state.lock().map_err(|_| {
-            ObservationProxyError::RuntimeUnavailable(
-                "backend observation state lock poisoned".into(),
-            )
-        })?;
-        let history = state.history.get(&key);
-        let replay: Vec<_> = history
-            .into_iter()
-            .flat_map(|events| events.iter())
-            .filter(|event| event.sequence > cursor.sequence)
-            .cloned()
-            .collect();
-        if cursor.sequence != 0 {
-            let found = history
-                .into_iter()
-                .flat_map(|events| events.iter())
-                .any(|event| event.sequence == cursor.sequence);
-            if !found {
-                return Err(ObservationProxyError::CursorUnknownOrExpired(format!(
-                    "backend observation cursor {} is unknown or expired for runtime {runtime_id} worker {worker_id}",
-                    cursor.encode()
-                )));
-            }
-        }
-        let runtime_cursor = replay
-            .last()
-            .map(|event| event.runtime_cursor.clone())
-            .or_else(|| {
-                history.and_then(|events| {
-                    events
-                        .iter()
-                        .find(|event| event.sequence == cursor.sequence)
-                        .map(|event| event.runtime_cursor.clone())
-                })
-            });
-        Ok(BackendObservationOpen {
-            replay: replay.into_iter().map(|event| event.envelope).collect(),
-            runtime_cursor,
-            backend_cursor: cursor,
-        })
-    }
-
-    pub fn store(
-        &self,
-        event: RuntimeObservationUpstreamEvent,
-    ) -> Result<ClientWorkerEventWsEnvelope, ObservationProxyError> {
-        let mut state = self.state.lock().map_err(|_| {
-            ObservationProxyError::RuntimeUnavailable(
-                "backend observation state lock poisoned".into(),
-            )
-        })?;
-        let sequence = state.next_sequence;
-        state.next_sequence += 1;
-        let cursor = BackendObservationCursor::new(sequence).encode();
-        let envelope = ClientWorkerEventWsEnvelope {
-            cursor: cursor.clone(),
-            event_id: cursor,
-            runtime_id: event.runtime_id.clone(),
-            worker_id: event.worker_id.clone(),
-            payload: event.payload,
-        };
-        let key = ObservationKey {
             runtime_id: event.runtime_id,
             worker_id: event.worker_id,
-        };
+            payload: event.payload,
-        let history = state.history.entry(key).or_default();
-        history.push_back(StoredBackendEvent {
-            sequence,
-            runtime_cursor: event.runtime_cursor,
-            envelope: envelope.clone(),
-        });
-        while history.len() > 1024 {
-            history.pop_front();
         }
-        Ok(envelope)
     }
 }
 
@@ -415,11 +256,6 @@ fn map_runtime_connect_error(error: TungsteniteError) -> ObservationProxyError {
                 "runtime worker observation endpoint returned 404 not found".into(),
             )
         }
-        TungsteniteError::Http(response) if response.status() == StatusCode::BAD_REQUEST => {
-            ObservationProxyError::CursorMalformed(
-                "runtime worker observation endpoint rejected the request as malformed".into(),
-            )
-        }
         TungsteniteError::Http(response) => ObservationProxyError::RuntimeUnavailable(format!(
             "runtime worker observation endpoint rejected WebSocket upgrade with status {}",
             response.status()
@@ -433,10 +269,9 @@ fn map_runtime_connect_error(error: TungsteniteError) -> ObservationProxyError {
 fn map_runtime_diagnostic(code: String, message: String) -> ObservationProxyError {
     match code.as_str() {
         "runtime.worker_not_found" => ObservationProxyError::WorkerNotFound(message),
-        "runtime.cursor_malformed" => ObservationProxyError::CursorMalformed(message),
+        "runtime.cursor_malformed"
-        "runtime.cursor_unknown_or_expired" | "runtime.cursor_expired" => {
+        | "runtime.cursor_unknown_or_expired"
-            ObservationProxyError::CursorUnknownOrExpired(message)
+        | "runtime.cursor_expired" => ObservationProxyError::RuntimeUnavailable(message),
-        }
         "runtime.unavailable" => ObservationProxyError::RuntimeUnavailable(message),
         "runtime.upstream_closed" | "runtime.websocket_error" => {
             ObservationProxyError::UpstreamDisconnect(message)
@@ -460,15 +295,8 @@ pub struct RuntimeWsObservationClient {
 impl RuntimeWsObservationClient {
     pub async fn connect(
         source: &RuntimeObservationSourceConfig,
-        runtime_cursor: Option<&str>,
     ) -> Result<Self, ObservationProxyError> {
-        let mut endpoint = source.endpoint.clone();
+        let endpoint = source.endpoint.clone();
-        if let Some(cursor) = runtime_cursor {
-            let separator = if endpoint.contains('?') { '&' } else { '?' };
-            endpoint.push(separator);
-            endpoint.push_str("cursor=");
-            endpoint.push_str(cursor);
-        }
         let mut request = endpoint.into_client_request().map_err(|error| {
             ObservationProxyError::RuntimeUnavailable(format!(
                 "failed to build runtime WebSocket request: {error}"
@@ -557,7 +385,7 @@ impl RuntimeWsObservationClient {
         RuntimeObservationUpstreamEvent {
             runtime_id: self.runtime_id.clone(),
             worker_id: self.worker_id.clone(),
-            runtime_cursor: envelope.cursor,
+            runtime_event_id: envelope.event_id,
             payload: envelope.payload,
         }
     }
@@ -569,18 +397,15 @@ pub enum RuntimeObservationClient {
 }
 
 impl RuntimeObservationClient {
-    pub async fn connect(
+    pub async fn connect(source: &RuntimeObservationSource) -> Result<Self, ObservationProxyError> {
-        source: &RuntimeObservationSource,
-        runtime_cursor: Option<&str>,
-    ) -> Result<Self, ObservationProxyError> {
         match source {
             RuntimeObservationSource::RemoteWs(config) => {
-                RuntimeWsObservationClient::connect(config, runtime_cursor)
+                RuntimeWsObservationClient::connect(config)
                     .await
                     .map(Self::RemoteWs)
             }
             RuntimeObservationSource::Embedded(source) => {
-                EmbeddedObservationClient::connect(source, runtime_cursor).map(Self::Embedded)
+                EmbeddedObservationClient::connect(source).map(Self::Embedded)
             }
         }
     }
@@ -605,17 +430,8 @@ pub struct EmbeddedObservationClient {
 }
 
 impl EmbeddedObservationClient {
-    fn connect(
+    fn connect(source: &EmbeddedRuntimeObservationSource) -> Result<Self, ObservationProxyError> {
-        source: &EmbeddedRuntimeObservationSource,
+        let cursor = source
-        runtime_cursor: Option<&str>,
-    ) -> Result<Self, ObservationProxyError> {
-        let cursor = match runtime_cursor {
-            Some(raw) => WorkerObservationCursor::decode(raw).ok_or_else(|| {
-                ObservationProxyError::CursorMalformed(
-                    "embedded runtime cursor is malformed".into(),
-                )
-            })?,
-            None => source
             .runtime
             .worker_observation_cursor_now(&source.worker_ref)
             .map_err(|err| {
@@ -623,8 +439,7 @@ impl EmbeddedObservationClient {
                     "embedded Worker '{}' is not observable: {err}",
                     source.worker_id
                 ))
-                })?,
+            })?;
-        };
         let receiver = source
             .runtime
             .subscribe_worker_observation()
@@ -635,7 +450,6 @@ impl EmbeddedObservationClient {
                 ))
             })?;
         let mut queued = VecDeque::new();
-        if runtime_cursor.is_none() {
         let snapshot = source
             .runtime
             .worker_observation_snapshot(&source.worker_ref)
@@ -648,16 +462,15 @@ impl EmbeddedObservationClient {
         queued.push_back(RuntimeObservationUpstreamEvent {
             runtime_id: source.runtime_id.clone(),
             worker_id: source.worker_id.clone(),
-                runtime_cursor: cursor.encode(),
+            runtime_event_id: "snapshot".to_string(),
             payload: snapshot,
         });
-        }
         for event in source
             .runtime
             .read_worker_observation_events(&source.worker_ref, cursor)
             .map_err(|err| {
-                ObservationProxyError::CursorUnknownOrExpired(format!(
+                ObservationProxyError::RuntimeUnavailable(format!(
-                    "embedded Worker '{}' cursor is unavailable: {err}",
+                    "embedded Worker '{}' observation cursor is unavailable: {err}",
                     source.worker_id
                 ))
             })?
@@ -682,9 +495,6 @@ impl EmbeddedObservationClient {
         &mut self,
     ) -> Result<RuntimeObservationUpstreamEvent, ObservationProxyError> {
         if let Some(event) = self.queued.pop_front() {
-            if let Some(cursor) = WorkerObservationCursor::decode(&event.runtime_cursor) {
-                self.cursor = cursor;
-            }
             return Ok(event);
         }
         loop {
@@ -695,7 +505,7 @@ impl EmbeddedObservationClient {
                 {
                     self.cursor =
                         WorkerObservationCursor::decode(&event.cursor).ok_or_else(|| {
-                            ObservationProxyError::CursorMalformed(
+                            ObservationProxyError::RuntimeUnavailable(
                                 "embedded runtime emitted a malformed cursor".into(),
                             )
                         })?;
@@ -703,7 +513,7 @@ impl EmbeddedObservationClient {
                 }
                 Ok(_) => continue,
                 Err(tokio::sync::broadcast::error::RecvError::Lagged(_)) => {
-                    return Err(ObservationProxyError::CursorUnknownOrExpired(
+                    return Err(ObservationProxyError::RuntimeUnavailable(
                         "embedded runtime observation backlog was exceeded".into(),
                     ));
                 }
@@ -724,7 +534,7 @@ impl EmbeddedObservationClient {
         RuntimeObservationUpstreamEvent {
             runtime_id: runtime_id.to_string(),
             worker_id: worker_id.to_string(),
-            runtime_cursor: event.cursor,
+            runtime_event_id: event.cursor.clone(),
             payload: event.payload,
         }
     }

crates/workspace-server/src/resource_broker.rs

@@ -68,6 +68,18 @@ impl BackendResourceBroker {
         handle
     }
 
+    pub fn profile_source_archive(
+        &self,
+        digest: &str,
+    ) -> Option<worker_runtime::profile_archive::ProfileSourceArchive> {
+        self.resources
+            .lock()
+            .ok()?
+            .values()
+            .find(|resource| resource.handle.digest == digest)
+            .map(|resource| resource.archive.clone())
+    }
+
     pub fn fetch_profile_source_archive(
         &self,
         request: BackendResourceFetchRequest,