ticket: start mcp resources prompts worktree

.yoi/tickets/00001KVHR3WSN/item.md

@@ -2,7 +2,7 @@
 title: 'MCP: expose resources and prompts as explicit tool operations'
 state: 'inprogress'
 created_at: '2026-06-20T05:30:04Z'
-updated_at: '2026-06-20T09:37:22Z'
+updated_at: '2026-06-20T09:38:10Z'
 assignee: null
 readiness: 'implementation_ready'
 risk_flags: ['mcp', 'resources', 'prompts', 'prompt-context', 'history', 'untrusted-content']

.yoi/tickets/00001KVHR3WSN/thread.md

@@ -94,3 +94,18 @@ Next action:
 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.
 
 ---
+
+<!-- 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。
+
+---