## 作成 LocalTicketBackend によって作成されました。 --- ## State changed Ticket を `workspace-panel` が queued にしました。 --- ## Decision Routing decision: blocked_pending_dependency Panel Queue により routing 対象として確認したが、`00001KVHR3WSW` は `00001KVHR3WS6` に `depends_on` している。list_changed handling は initial tools/list registration を前提にするため、`00001KVHR3WS6` が closed になるまで実装開始せず queued のまま保持する。 Next: - `00001KVHR3WS6` が closed になった後、改めて reroute する。 --- ## Decision Routing decision: implementation_ready 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、最後に残った queued Ticket の dependency blocker も解消済みのため開始する。 - 前回は `00001KVHR3WS6` initial tools/list registration が未完了だったため blocked/queued hold としたが、現在 `00001KVHR3WS6` は closed。 - Related resources/prompts operations Ticket `00001KVHR3WSN` も closed になっており、tools/resources/prompts list_changed をまとめて扱う context が揃っている。 - Ticket body は `notifications/tools/list_changed`, `notifications/resources/list_changed`, `notifications/prompts/list_changed` の handling、current run schema consistency、prompt-cache/history invariants、deterministic refresh/diagnostic behavior、unsafe refresh fallback を実装可能な粒度で定義している。 - Orchestrator worktree は clean、matching branch/worktree はなし。 - Risk domain は mcp / notifications / tool-schema / prompt-cache / refresh だが、Ticket は current run schema consistency、no hidden context mutation、bounded diagnostics 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 `00001KVHR3WSW` body / thread / relations / artifacts。 - `TicketRelationQuery(00001KVHR3WSW)`: outgoing `depends_on 00001KVHR3WS6` is now closed。 - `TicketOrchestrationPlanQuery(00001KVHR3WSW)`: previous `blocked_by 00001KVHR3WS6` is resolved; accepted plan recorded now。 - Workspace state: - Orchestrator worktree clean at `b11f83c8`。 - queued: this Ticket only。 - inprogress: 0。 - spawned child implementation Pods: 0。 - no matching MCP list_changed branch/worktree。 IntentPacket: Intent: - Handle MCP list_changed notifications without silently staying stale forever and without mutating active-run model-visible tool schema or prompt/context history invariants unsafely。 - Implement a deterministic safe-boundary refresh / restart-required diagnostic / next-turn refresh policy that covers tools/resources/prompts list changes。 Binding decisions / invariants: - Do not mutate current LLM context with hidden resource/prompt content。 - Do not unexpectedly mutate active run tool schema in a way that breaks request/history/prompt-cache invariants。 - list_changed notifications are signals; they should produce bounded state/diagnostic and deterministic refresh behavior at safe boundaries。 - Bounded diagnostics should identify server and list kind without leaking secrets。 - Preserve existing explicit Tool operations for tools/resources/prompts。 - Do not implement remote transports, sampling, or elicitation。 Requirements / acceptance criteria: - Handle `notifications/tools/list_changed`, `notifications/resources/list_changed`, and `notifications/prompts/list_changed`。 - list_changed does not silently stale forever。 - Current run tool schema consistency is not broken。 - Refresh/diagnostic behavior is deterministic and documented。 - Prompt-context/history invariants are preserved。 - Tests cover tools/resources/prompts list_changed and unsafe refresh fallback。 Escalate if: - Safe refresh requires changing Worker history/model schema lifecycle beyond this Ticket。 - Current provider/feature architecture cannot represent pending refresh diagnostics without broad redesign。 - A live schema mutation would be required to satisfy the feature expectation; stop instead and record restart/next-turn policy。 Next action: - Record `queued -> inprogress` and commit Ticket records before creating implementation worktree and spawning Coder。 --- ## State changed User explicitly authorized implementation when no blocker exists. Ticket body/thread, relation metadata, closed MCP tool-registration dependency, closed resources/prompts context, Orchestrator worktree state, visible Pods, existing branch/worktree, and bounded list_changed/schema/history context were checked. Dependency `00001KVHR3WS6` 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. --- ## Implementation report Implementation orchestration start: - Acceptance records were committed on Orchestrator branch: `d31b8907 ticket: accept mcp list changed handling`。 - Created implementation worktree `/home/hare/Projects/yoi/.worktree/00001KVHR3WSW-mcp-list-changed` on branch `impl/00001KVHR3WSW-mcp-list-changed` at `d31b8907`。 - Spawned Coder Pod `yoi-coder-00001KVHR3WSW` 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, unsafe active-run schema mutation, 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。 --- ## Implementation report Coder implementation report received from `yoi-coder-00001KVHR3WSW`. Implementation commit: - `e33dee19 mcp: handle list changed notifications` Changed areas reported: - `crates/mcp/src/stdio.rs`: - Records bounded `notifications/tools/list_changed`, `notifications/resources/list_changed`, and `notifications/prompts/list_changed` state。 - Ignores notification params entirely so notifications cannot inject prompt/resource content or hidden context。 - Exposes snapshot/clear APIs for safe-boundary refresh decisions。 - `crates/pod/src/feature/mcp.rs`: - During startup tool discovery, refreshes `tools/list` once if `tools/list_changed` is observed before registration。 - If list changes continue during refresh, emits a restart-required diagnostic and does not mutate active-run tool schema after registration。 - During MCP tool/resource/prompt operations, appends bounded warnings to explicit tool output when list_changed is observed。 - Preserves explicit operations for `tools/call`, `resources/list/read`, and `prompts/list/get`; no notification-driven content injection。 - Tests: - Added stdio notification state coverage for tools/resources/prompts。 - Added provider/runtime tests for safe-boundary tool refresh, restart-required fallback, and resource/prompt warning behavior without leaking notification params。 Coder validation reported: - `cargo test -p mcp list_changed -- --nocapture`: passed。 - `cargo test -p pod mcp::tests:: -- --nocapture`: passed。 - `cargo check --workspace`: passed。 - `cargo test -p mcp`: passed。 - `cargo test -p pod mcp::tests::`: passed。 - `cargo fmt --all -- --check`: passed。 - `git diff --check`: passed。 - `nix build .#yoi --no-link`: passed; dirty-tree warning expected before commit。 Known risks / deferrals: - Live mutation of already-presented model-visible MCP tool schemas is intentionally not implemented。 - Continued `tools/list_changed` after one startup safe-boundary refresh produces bounded restart-required diagnostic。 - Resource/prompt list refresh remains explicit via existing MCP list/read/get tools on later turns; notifications alone do not inject or fetch content。 Orchestrator evidence checked before review dispatch: - Implementation worktree is clean。 - HEAD is `e33dee19`。 - Diff from acceptance `d31b8907..HEAD` is one implementation commit touching 4 files, about 459 insertions / 9 deletions。 - `git diff --check d31b8907..HEAD` produced no diagnostics。 Next action: - Dispatch Reviewer for r1 review against Ticket requirements, with focus on current-run schema/history invariants, safe-boundary refresh policy, bounded diagnostics, no hidden prompt/resource injection, tools/resources/prompts notification coverage, and tests。 ---