<!-- event: create author: "yoi ticket" at: 2026-06-11T03:20:32Z -->

## 作成

LocalTicketBackend によって作成されました。

---

<!-- event: plan author: intake at: 2026-06-11T04:33:13Z -->

## Plan

## Intake refinement

既存 Ticket 本文・thread・artifacts を確認した。artifacts はなく、thread は作成イベントのみ。

### Readiness

- readiness: implementation_ready
- open_questions: なし
- risk_flags: [worktree-layout, ticket-backend, panel-launcher, prompt-workflow-guidance, authority-boundary, merge-completion, cleanup]

### Orchestrator / Reviewer focus

- Orchestrator の `pwd`、Ticket backend root、original workspace root、implementation worktree root を混同しないこと。
- implementation branch に orchestration branch の Ticket churn を混ぜないこと。
- merge-ready dossier は停止点ではなく checkpoint とし、standing merge authority・reviewer approval・safe target workspace・未解決 human gate なしが揃う場合だけ merge / validation / close or done / cleanup まで進めること。
- `resources/prompts/*`、`.yoi/workflow/*`、Panel/role launcher の実装が相互に矛盾しないこと。
- filesystem Ticket backend 前提の運用分離であり、Git 外 Ticket store 移行や push 自動化は非目標として維持すること。

### Validation focus

- targeted tests または workflow-level validation で cwd/backend/root 分離を確認すること。
- `target/debug/yoi ticket doctor` を通すこと。
- コード・runtime resource・prompt 変更が含まれるため、完了前に `nix build .#yoi` を通すこと。

---

<!-- event: intake_summary author: intake at: 2026-06-11T04:33:22Z -->

## Intake summary

既存 Ticket 00001KTTB479X は実装・レビュー可能な粒度まで要件化済み。目的は Orchestrator を専用 orchestration worktree で実行し、implementation worktree は original workspace root 配下の sibling `.worktree/<ticket>` に作る運用・実装・prompt/workflow guidance を整えること。blocking open question はなし。主な risk flags は worktree-layout, ticket-backend, panel-launcher, prompt-workflow-guidance, authority-boundary, merge-completion, cleanup。Orchestrator は cwd/backend/root 分離、orchestration Ticket churn の混入防止、merge-completion authority 条件、prompt/workflow 整合性を重点確認して routing できる。

---

<!-- event: state_changed author: intake at: 2026-06-11T04:33:23Z from: planning to: ready reason: intake_ready field: state -->

## State changed

Intake refinement により、本文・thread・artifacts を確認し、blocking open question がない implementation_ready Ticket と判断した。ユーザーが panel で queue した後、Orchestrator が routing できる状態にする。

---

<!-- event: state_changed author: workspace-panel at: 2026-06-11T04:33:46Z from: ready to: queued reason: queued field: state -->

## State changed

Ticket を `workspace-panel` が queued にしました。


---

<!-- event: state_changed author: orchestrator at: 2026-06-11T04:35:24Z from: queued to: inprogress reason: orchestrator_queue_acceptance field: state -->

## State changed

Queue acceptance: unrelated dirty code/profile diffs were identified as stale reverted reviewer-blocker changes from the prior Ticket and were restored before acceptance. The remaining dirty state is this Ticket's workspace-panel queue update. Relation query has no blockers, orchestration-plan query has no existing records, and the Ticket is implementation_ready with explicit requirements for orchestration worktree / original workspace root / merge-completion guidance. Implementation side effects may proceed after this recorded acceptance.

---

<!-- event: plan author: orchestrator at: 2026-06-11T04:35:24Z -->

## Plan

Routing decision: implementation_ready

Reason:
- Ticket is `queued`; user/panel authorized routing and user has given standing authorization to continue through merge-completion when reviewer approval and safety conditions hold.
- Relation query has no blockers and orchestration-plan query has no existing records.
- Workspace dirty state was checked. Stale bad role-profile diffs from the previous Ticket were restored; remaining dirty state was this Ticket's queued update.
- Ticket body and Intake refinement contain concrete requirements, acceptance criteria, non-goals, validation focus, and risk flags.

Evidence checked:
- Ticket body/thread/artifacts.
- `TicketRelationQuery`: no blockers.
- `TicketOrchestrationPlanQuery`: no records before this routing pass.
- Workspace/worktree/branch state: main worktree only before acceptance.
- Visible Pods: no active implementation child Pods.

IntentPacket:
- Intent: make Orchestrator execution and implementation worktree creation explicitly distinguish orchestration worktree cwd/ticket backend from the original workspace root and target merge workspace.
- Binding decisions / invariants: filesystem Ticket backend remains; no Git-external Ticket store; main workspace draft Tickets must not be implicit Orchestrator queue; implementation worktrees are siblings under original workspace root `.worktree/<ticket>` and must not be nested under Orchestrator cwd; implementation branches must not include orchestration Ticket churn; prompt/workflow guidance must not reintroduce dossier stop when standing merge authority/safe target/reviewer approval/no human gate are present.
- Requirements / acceptance criteria: record design/implementation policy; update Panel/launcher/workflow/prompt guidance as needed; testable handling of Orchestrator cwd, Ticket backend root, original workspace root, implementation worktree root, target workspace/branch, and cleanup policy; `target/debug/yoi ticket doctor`; code/runtime resource/prompt changes require `nix build .#yoi` before completion.
- Implementation latitude: exact naming/reuse policy for orchestration worktrees and exact split between docs, prompts, workflow text, and launcher code can be chosen if the invariants and tests are met.
- Escalate if implementation requires changing Ticket storage backend authority, introducing push automation, or weakening merge/reviewer/safe-workspace checks.
- Validation: focused tests for launcher/worktree context and prompt/workflow text where practical, `cargo fmt --check`, `git diff --check`, `target/debug/yoi ticket doctor`, and `nix build .#yoi`.

---

<!-- event: implementation_report author: orchestrator at: 2026-06-11T04:46:32Z -->

## Implementation report

Implementation report

Branch/worktree: `orchestrator-worktree-layout` / `.worktree/orchestrator-worktree-layout`
Commit:
- `834caba2 feat: track orchestration workspace roots`

Summary:
- Added `docs/design/orchestrator-worktree-layout.md` to record the four-root model: `role_workspace_root`, `original_workspace_root`, `implementation_worktree_root`, and `merge_target_workspace_root`.
- Extended `TicketRoleLaunchContext` / `TicketRoleLaunchPlan` with original/target workspace roots and derived implementation worktree root.
- Orchestrator launch prompts now emit a `Workspace routing context` section so the model-visible task can distinguish the role runtime/Ticket backend root from original implementation and merge target roots.
- Updated Orchestrator worktree-routing and merge-completion prompt resources so implementation worktrees are created under the recorded original workspace root and merge/cleanup runs against the recorded target workspace, not accidental process cwd.
- Updated `worktree-workflow` to use `<original-workspace-root>/.worktree/<task-name>` and `git -C <original-workspace-root> ...` instead of assuming the Orchestrator cwd is the repository root.
- Adjusted client Ticket-role prompt tests to cover workspace routing context and standing merge-completion authority behavior.

Validation run in branch:
- `cargo fmt --check` passed.
- `cargo test -p client ticket_role --lib` passed (18 passed).
- `git diff --check` passed.
- `/home/hare/Projects/yoi/target/debug/yoi ticket doctor` passed.
- `nix build .#yoi` passed.

Notes:
- Panel/workspace orchestration can later populate `original_workspace_root` and `target_workspace_root` when launching an Orchestrator from a dedicated worktree. This branch adds the plan/prompt plumbing and workflow policy without changing Ticket storage backend authority or introducing Git-external project records.

---

<!-- event: review author: reviewer-orchestrator-worktree-layout at: 2026-06-11T04:53:40Z status: request_changes -->

## Review: request changes

Branch-local review verdict: request_changes

Blocker:
- `.yoi/workflow/multi-agent-workflow.md` still contradicts the new root model. It still instructs creating `./.worktree/<task-name>` relative to Orchestrator cwd and frames read/write authority, orchestration authority, merge, validation, and lifecycle around `main workspace` instead of recorded original/target workspace roots. Because this workflow is advertised/resident and referenced by the updated Orchestrator prompt, it can reintroduce old behavior despite the updated `worktree-workflow`.

Non-blocking notes:
- `TicketRoleLaunchContext` / `TicketRoleLaunchPlan` root plumbing is directionally correct and generated Orchestrator prompt output exposes `role_workspace_root`, `original_workspace_root`, `implementation_worktree_root`, and `merge_target_workspace_root`.
- Production callers still construct `TicketRoleLaunchContext::new(workspace_root, TicketRole::Orchestrator)` without supplying distinct original/target roots. This can be a follow-up boundary, but the branch is not a complete dedicated-orchestration-worktree launch path yet.
- Tests cover new prompt wording and standing merge-completion wording, but should more strongly assert plan field values and that `SpawnConfig` stays on `role_workspace_root` when original/target roots differ.

Validation run by reviewer:
- `cargo test -p client ticket_role --lib` passed (18 passed).
- `git diff --check $(git merge-base HEAD develop)..HEAD` passed.
- `/home/hare/Projects/yoi/target/debug/yoi ticket doctor` passed.
- `nix build .#yoi --no-link` passed.

No files were modified by reviewer.

---

<!-- event: implementation_report author: orchestrator at: 2026-06-11T04:56:47Z -->

## Implementation report

Fix-loop implementation report

Reviewer blocker fixed in amended implementation commit `e7c78f96`:
- Updated `.yoi/workflow/multi-agent-workflow.md` so it no longer assumes Orchestrator cwd is the original repository root.
- Multi-agent workflow now explicitly says implementation worktrees are created under the recorded original workspace root `.worktree`, and merge-completion runs against the recorded merge target workspace.
- Replaced remaining `main workspace` merge/validation/Ticket-completion wording with recorded merge target / recorded Ticket backend wording where relevant.
- Kept `.yoi` path-exclusion policy intact while clarifying Orchestrator workspace / Ticket backend authority boundaries.
- Strengthened client tests to assert `TicketRoleLaunchPlan` root fields and that `SpawnConfig.workspace_root` remains the role runtime workspace root even when original/target roots differ.

Validation after fix:
- `cargo fmt --check` passed.
- `cargo test -p client ticket_role --lib` passed (18 passed).
- `git diff --check` passed.
- `/home/hare/Projects/yoi/target/debug/yoi ticket doctor` passed.
- `nix build .#yoi` passed.

Reviewer `reviewer-orchestrator-worktree-layout` has been asked to re-review the amended branch.

---

<!-- event: review author: reviewer-orchestrator-worktree-layout at: 2026-06-11T04:58:54Z status: approve -->

## Review: approve

Branch-local review verdict: approve

Blockers: none.

Reviewer confirmed previous blocker is resolved:
- `.yoi/workflow/multi-agent-workflow.md` now says implementation worktrees are created under the recorded original workspace root and merge-completion runs against the recorded merge target workspace.
- Strengthened tests confirm `TicketRoleLaunchPlan` root fields and that `SpawnConfig.workspace_root` remains the role runtime workspace root.

Non-blocking notes:
- Some generic explanatory text still says `main workspace`, but it no longer instructs cwd-relative worktree creation or merge target inference and is not a blocker.
- Production caller paths that populate distinct original/target roots remain a follow-up boundary; this Ticket's testable root context and guidance scope is satisfied.

Validation run by reviewer:
- `cargo fmt --check` passed.
- `cargo test -p client ticket_role --lib` passed (18 passed).
- `git diff --check $(git merge-base HEAD develop)..HEAD` passed.
- `/home/hare/Projects/yoi/target/debug/yoi ticket doctor` passed.
- `nix build .#yoi --no-link` passed.

No files were modified by reviewer and no final main-branch approval/close was recorded by reviewer.

---

<!-- event: review author: orchestrator at: 2026-06-11T04:59:47Z status: approve -->

## Review: approve

Main-branch review/merge-completion approval.

Verified before merge:
- Merge target matched branch `orchestrator-worktree-layout`, worktree `.worktree/orchestrator-worktree-layout`, and implementation commit `e7c78f96`.
- Branch-local reviewer `reviewer-orchestrator-worktree-layout` approved after blocker fix.
- Main workspace was clean before merge.
- User has standing authorization to proceed through merge-completion when reviewer approval and safety checks pass.

Merged:
- `git merge --no-ff orchestrator-worktree-layout -m "merge: orchestrator worktree layout"`
- Merge commit: `5f7b3015 merge: orchestrator worktree layout`

Post-merge validation:
- `cargo fmt --check` passed.
- `cargo test -p client ticket_role --lib` passed (18 passed).
- `git diff --check` passed.
- `target/debug/yoi ticket doctor` passed.
- typed `TicketDoctor` reported 0 errors and 3 pre-existing diagnostics.
- `nix build .#yoi` passed.

Result: approve.

---

<!-- event: state_changed author: orchestrator at: 2026-06-11T04:59:47Z from: inprogress to: done reason: merged_and_validated field: state -->

## State changed

Merged branch `orchestrator-worktree-layout` with merge commit `5f7b3015`; branch-local reviewer approved after fix and post-merge validation passed (`cargo fmt --check`, `cargo test -p client ticket_role --lib`, `git diff --check`, `target/debug/yoi ticket doctor`, typed `TicketDoctor` 0 errors / 3 pre-existing diagnostics, `nix build .#yoi`).

---

<!-- event: state_changed author: hare at: 2026-06-11T05:00:04Z from: done to: closed reason: closed field: state -->

## State changed

Ticket を closed にしました。


---

<!-- event: close author: hare at: 2026-06-11T05:00:04Z status: closed -->

## 完了

完了しました。

実施内容:
- `docs/design/orchestrator-worktree-layout.md` を追加し、`role_workspace_root` / `original_workspace_root` / `implementation_worktree_root` / `merge_target_workspace_root` の4-root model を記録しました。
- `TicketRoleLaunchContext` / `TicketRoleLaunchPlan` に original/target/worktree root を追加しました。
- Orchestrator launch prompt に `Workspace routing context` を出し、role runtime workspace / Ticket backend root と original implementation root / merge target root を区別できるようにしました。
- Orchestrator routing / merge-completion prompt resources を更新し、implementation worktree は recorded original workspace root の `.worktree` 配下、merge/cleanup は recorded merge target workspace で行うよう明示しました。
- `.yoi/workflow/worktree-workflow.md` と `.yoi/workflow/multi-agent-workflow.md` を更新し、Orchestrator cwd を original repo root / merge target とみなさない方針に揃えました。
- standing merge authority があり、reviewer approval / safe target workspace / no blockers の条件が揃う場合は merge-ready dossier で止まらず merge/validation/close/cleanup まで進む guidance にしました。
- client Ticket-role tests を更新し、root fields と `SpawnConfig.workspace_root` が role runtime workspace root のまま保たれることを検証しました。

Merge:
- Branch: `orchestrator-worktree-layout`
- Implementation commit: `e7c78f96 feat: track orchestration workspace roots`
- Merge commit: `5f7b3015 merge: orchestrator worktree layout`

確認:
- Branch-local reviewer `reviewer-orchestrator-worktree-layout` が初回 request_changes 後、修正済み branch を approve。
- `cargo fmt --check` passed。
- `cargo test -p client ticket_role --lib` passed（18 passed）。
- `git diff --check` passed。
- `target/debug/yoi ticket doctor` passed。
- typed `TicketDoctor` は 0 errors / 3 pre-existing diagnostics。
- `nix build .#yoi` passed。

残作業:
- Panel/workspace orchestration が dedicated Orchestrator worktree から起動する際に `original_workspace_root` / `target_workspace_root` を実際に populate する経路は follow-up 境界です。

---
