yoi/.yoi/tickets/00001KVHR3WSN/thread.md

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<!-- event: create author: "yoi ticket" at: 2026-06-20T05:30:04Z -->
## 作成
LocalTicketBackend によって作成されました。
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<!-- event: state_changed author: workspace-panel at: 2026-06-20T05:58:57Z from: ready to: queued reason: queued field: state -->
## State changed
Ticket を `workspace-panel` が queued にしました。
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<!-- event: decision author: yoi-orchestrator at: 2026-06-20T06:00:44Z -->
## Decision
Routing decision: blocked_pending_dependency
Panel Queue により routing 対象として確認したが、`00001KVHR3WSN` は `00001KVHR3WRY``depends_on` している。MCP resources/prompts operations は initialized stdio lifecycle を前提にするため、`00001KVHR3WRY` が closed になるまで実装開始せず queued のまま保持する。
Next:
- `00001KVHR3WRY` が closed になった後、改めて reroute する。
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<!-- event: decision author: yoi-orchestrator at: 2026-06-20T09:37:14Z -->
## Decision
Routing decision: implementation_ready_parallel
Reason:
- User directive: 「blocker無いなら並列にやっちゃえよ」。現在 inprogress は 0 件であり、依存 blocker も解消済みのため、この queued Ticket を開始する。
- 前回は `00001KVHR3WRY` stdio lifecycle が未完了だったため blocked/queued hold としたが、現在 `00001KVHR3WRY` は closed。
- Ticket body は resources/list, resources/read, prompts/list, prompts/get を explicit tool operations として exposeし、hidden context injection を禁止し、ordinary Tool result/history path・untrusted/bounded content handling・pagination/list bounds を明確にしている。
- Orchestrator worktree は clean、matching branch/worktree はなし。
- Risk domain は mcp / resources / prompts / prompt-context / history / untrusted-content だが、Ticket は explicit Tool operations、ordinary history、no hidden injection、bounded/rich content serialization を明示している。bounded context check 後も implementation 前に必要な追加 human decision は見つからなかった。
Evidence checked:
- Ticket `00001KVHR3WSN` body / thread / relations / artifacts。
- `TicketRelationQuery(00001KVHR3WSN)`: outgoing `depends_on 00001KVHR3WRY` is now closed。
- `TicketOrchestrationPlanQuery(00001KVHR3WSN)`: previous `blocked_by 00001KVHR3WRY` is resolved; accepted plan recorded now。
- Workspace state:
- Orchestrator worktree clean at `6ac916c7`
- queued: `00001KVHR3WSN`, `00001KVHR3WSW`
- inprogress: 0。
- spawned child implementation Pods: 0。
- no matching MCP resources/prompts branch/worktree。
IntentPacket:
Intent:
- Expose MCP resources/prompts as explicit namespaced Yoi tool operations: `resources/list`, `resources/read`, `prompts/list`, `prompts/get`
- Returned resources/prompt templates are untrusted Tool result data and must be recorded through ordinary Tool result/history paths。
- Do not inject resource/prompt content directly into model context outside Tool history。
Binding decisions / invariants:
- No hidden context injection path。
- All returned content/templates are untrusted data。
- Bound result sizes and rich/embedded content serialization。
- Handle pagination/list bounds where applicable。
- Diagnostics identify server/resource/prompt operation without leaking secrets。
- Do not implement MCP tool execution itself beyond existing completed support。
- Do not implement list_changed refresh, sampling, or elicitation in this Ticket。
- Preserve prior MCP lifecycle/tool-call redaction/bounds/ordinary Tool path behavior。
Requirements / acceptance criteria:
- `resources/list` and `resources/read` can be invoked as explicit tools。
- `prompts/list` and `prompts/get` can be invoked as explicit tools。
- Results are ordinary Tool results and history records。
- No hidden context injection path is introduced。
- Oversize/rich content is bounded。
- Tests cover list/read/get happy paths, untrusted content, bounds, and no hidden injection。
Escalate if:
- Existing ToolRegistry/provider path cannot represent resources/prompts operations without broad provider-substrate changes。
- MCP prompt message/content serialization requires product decision beyond safe bounded Tool result data。
- Hidden context injection would be needed to satisfy a feature expectation; that would violate Ticket intent and must stop。
Next action:
- Record `queued -> inprogress` and commit Ticket records before creating implementation worktree and spawning Coder。
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<!-- event: state_changed author: yoi-orchestrator at: 2026-06-20T09:37:22Z from: queued to: inprogress reason: orchestrator_acceptance_mcp_resources_prompts_tools field: state -->
## State changed
User explicitly authorized parallel implementation when no blocker exists. Ticket body/thread, relation metadata, closed MCP lifecycle dependency, Orchestrator worktree state, visible Pods, existing branch/worktree, and bounded MCP resources/prompts context were checked. Dependency `00001KVHR3WRY` is closed, no inprogress/capacity blocker exists, no matching worktree/branch exists, and no missing planning decision was found. Accepting this queued Ticket for implementation before worktree/Pod side effects.
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<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-20T09:38:10Z -->
## Implementation report
Implementation orchestration start:
- Acceptance records were committed on Orchestrator branch: `b2b4764f ticket: accept mcp resources prompts tools`
- Created implementation worktree `/home/hare/Projects/yoi/.worktree/00001KVHR3WSN-mcp-resources-prompts-tools` on branch `impl/00001KVHR3WSN-mcp-resources-prompts-tools` at `b2b4764f`
- Spawned Coder Pod `yoi-coder-00001KVHR3WSN` with write scope limited to the implementation worktree and read-only root scope only for runtime workspace identity。
- Coder task explicitly forbids root/original workspace implementation, hidden context injection, list_changed/sampling/elicitation scope creep, merge, Ticket close, and cleanup。
Next action:
- Wait for Coder implementation report, then inspect branch diff/validation evidence and route to Reviewer。
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