ticket: accept workflow removal work

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

@@ -0,0 +1 @@
+{"id":"orch-plan-20260715-195505-1","ticket_id":"00001KXKJGYGD","kind":"accepted_plan","accepted_plan":{"summary":"Remove legacy Workflow tracking/resource/invocation machinery only. Delete ActiveWorkflow model-visible tools and durable active workflow state, remove workflow resource discovery and `/workflow-slug` invocation, delete or retire workflow crate/resources/tests, and clean prompt/docs wording. Leave Skills support to dependent follow-up Ticket `00001KXKMX0QM` and keep external state control in typed feature/tool surfaces.","branch":"work/00001KXKJGYGD-remove-workflow-tracking","worktree":"/home/hare/Projects/yoi/.worktree/00001KXKJGYGD-remove-workflow-tracking","role_plan":"Orchestrator accepts queued Ticket after inspecting Ticket/relation/plan/workspace state. 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. Do not call StopPod unless explicitly instructed."},"author":"orchestrator","at":"2026-07-15T19:55:05Z"}

.yoi/tickets/00001KXKJGYGD/item.md

@@ -1,8 +1,8 @@
 ---
 title: 'Remove workflow tracking and workflow resources'
-state: 'queued'
+state: 'inprogress'
 created_at: '2026-07-15T19:02:13Z'
-updated_at: '2026-07-15T19:54:36Z'
+updated_at: '2026-07-15T19:55:42Z'
 assignee: null
 queued_by: 'workspace-panel'
 queued_at: '2026-07-15T19:54:36Z'

.yoi/tickets/00001KXKJGYGD/thread.md

@@ -30,4 +30,96 @@ Marked ready by `yoi ticket state`.
 Ticket を `workspace-panel` が queued にしました。
 
 
+---
+
+<!-- event: decision author: orchestrator at: 2026-07-15T19:55:37Z -->
+
+## Decision
+
+Routing decision: implementation_ready
+
+Reason:
+- Ticket は前回の broad Skills support scope から修正され、今回は Workflow tracking / Workflow resource / Workflow invocation path の削除に範囲が限定されている。
+- Skills support は incoming dependent Ticket `00001KXKMX0QM` が `depends_on` として後続に分離されており、この Ticket 自身の blocker ではない。
+- `TicketRelationQuery(00001KXKJGYGD)` は incoming dependency のみで、outgoing blocker はない。
+- `TicketOrchestrationPlanQuery(00001KXKJGYGD)` は事前 record なし。今回 accepted plan を記録した。
+- `TicketList(inprogress)` は 0 件。
+- Orchestrator worktree `/home/hare/Projects/yoi/.worktree/orchestration` は clean で、既存 implementation worktree/branch は見当たらない。
+
+Evidence checked:
+- Ticket body / thread / relations / artifacts。
+- `TicketRelationQuery`, `TicketOrchestrationPlanQuery`, `TicketList(inprogress)`。
+- Orchestrator worktree / branch / worktree state。
+- Previous broad scope was corrected: current title is `Remove workflow tracking and workflow resources` and body says Agent Skills is separate follow-up。
+
+IntentPacket:
+
+Intent:
+- Legacy Workflow tracking/resource/invocation machinery を削除する。
+- ActiveWorkflow obligation state と model-visible ActiveWorkflow tools を取り除く。
+- Workflow resource authority と `/workflow-slug` invocation を廃止し、prompt/docs から Workflow 固有 wording を削除する。
+
+Binding decisions / invariants:
+- この Ticket では first-class Skills support を実装しない。Skills は dependent follow-up Ticket `00001KXKMX0QM` の責務。
+- Workflow を scheduler / state machine / script / external-state automation layer として残さない。
+- `ActiveWorkflowList` / `ActiveWorkflowComplete` / `ActiveWorkflowCancel` は model-visible tool schema から削除する。
+- Worker durable state / snapshot / compaction / rehydration / system-item extension から active workflow snapshot / obligation を削除する。
+- `resources/workflows` / `.yoi/workflow` は長期 authority として扱わない。
+- Ticket / Worker / workdir / queue などの外部状態制御は typed feature/tool surface に残す。
+- 既存 session に ActiveWorkflow storage がある場合は、初期実装では ignore / drop / diagnostic の bounded 方針にし、過剰な migration layer を作らない。
+
+Requirements / acceptance criteria:
+- ActiveWorkflow tools が schema から消えている。
+- active workflow state が Worker snapshot / compaction / rehydration に残らない。
+- Workflow resource discovery / invocation path が削除されている。
+- Workflow prompt wording / resident workflow advertisement が消えている。
+- Workflow 関連 crate/resource/API/test が削除または不要な互換なしに整理されている。
+- External state control は feature/tool surface に残る。
+- affected tests と `nix build .#yoi` が通る。
+
+Implementation latitude:
+- 既存 Workflow crate/resource を削除するか、必要最小限の型削除/rename にするかは dependency graph に応じて選んでよい。
+- Persisted old ActiveWorkflow state は bounded compatibility として無視/drop/diagnostic のどれかを選び、設計が大きくなる場合は escalation。
+- Prompt/docs cleanup の具体的な文言は Workflow authority を広告しない範囲で local tactic とする。
+
+Escalate if:
+- ActiveWorkflow state removal が destructive session migration や broad compatibility layer を必要とする場合。
+- Skills support を同時実装しないと build/API が成立しない場合。
+- `/slug` など user-facing invocation の代替設計をこの Ticket 内で固定する必要が出た場合。
+- Workflow に external-state authority を残さないと既存 feature が動かない場合。
+
+Validation:
+- `rg "ActiveWorkflow|active_workflow|Active workflow"` with remaining hits explained or removed。
+- `rg "resources/workflows|\.yoi/workflow|workflow invocation|Resident workflows"` with remaining hits explained or removed。
+- `git diff --check`
+- affected crate tests such as `cargo test -p worker --lib --tests`, `cargo test -p session-store --lib --tests`, `cargo test -p yoi --tests` if CLI/input touched, and workflow crate tests if crate remains。
+- `cargo check -p yoi`
+- `yoi ticket doctor`
+- `nix build .#yoi --no-link`
+
+Current code map / likely touch points:
+- `crates/worker/src/active_workflow.rs`, `crates/worker/src/workflow`, `crates/worker/src/controller.rs`, `crates/worker/src/worker.rs`, `crates/worker/src/prompt/*`。
+- `crates/workflow/*`, `resources/workflows/*`, `resources/prompts/*`。
+- `crates/protocol/src/lib.rs`, `crates/session-store/src/system_item.rs`。
+- CLI/TUI input path for `/slug` workflow invocation if present。
+- docs mentioning Workflow / ActiveWorkflow / resident workflows。
+
+Critical risks / reviewer focus:
+- ActiveWorkflow tools/state still present under renamed or hidden paths。
+- Workflow resource discovery/invocation surviving as hidden active path。
+- Prompt/docs still advertising Workflow obligations or resident workflows。
+- Accidentally implementing broad Skills support in this Ticket instead of leaving it to dependent follow-up。
+- Ticket queue / Worker spawn / workdir management logic being moved into Workflow/Skill rather than remaining typed tools/features。
+
+Next action:
+- Record `queued -> inprogress`, create dedicated implementation worktree, and route to sibling Coder Pod。
+
+---
+
+<!-- event: state_changed author: orchestrator at: 2026-07-15T19:55:42Z 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 worktree or spawning role Pods.
+
 ---