# Implementation handoff

Date: 2026-08-21 (Europe/Budapest)

## Delivered scope

- Node.js 24 ESM/strict TypeScript stdio MCP server
- Correlated Codex App Server WebSocket initialization and three-method read allowlist
- Paginated thread and loaded-thread reconciliation with stale/reconnect semantics
- Revisioned in-memory change ring and bounded refresh/wait behavior
- Exactly four MCP tools: `overview`, `list_threads`, `inspect_thread`, and `wait_for_change`
- Configuration validation, documentation, isolated registration validation, and opt-in smoke workflow

## Validation evidence

- Runtime: Node.js `v24.19.0`, npm `11.17.0`, Codex CLI `0.149.0`
- Full repository suite before clean-checkout validation: 36 tests passed, 0 failed
- Live read-only smoke against `ws://127.0.0.1:4500`: 668 threads synchronized, 6 loaded, one loaded thread inspected as `active`; emitted methods were only `thread/list`, `thread/loaded/list`, and `thread/read`
- Non-persistent `codex mcp list --json` configuration validation: `codex-chief-of-staff` appeared enabled with stdio transport; personal configuration was not changed
- Index-backed clean checkout under `/private/tmp`: `npm ci --cache /private/tmp/codex-chief-of-staff-npm-cache`, `npm run typecheck`, `npm run build`, and `npm test` all exited 0; 36 tests passed and 0 failed
- The task-specific npm cache was used because the existing user npm cache contains a root-owned file; no ownership or home-directory configuration was changed
- Final strict OpenSpec validation after all 27 task updates: `Change 'codex-chief-of-staff' is valid`

## Rollout order

1. Keep the shared App Server on loopback (or use authenticated TLS remotely) and ensure it shares `CODEX_HOME` with monitored clients.
2. Build this repository.
3. Add the documented personal MCP registration separately.
4. Start a dedicated Chief-of-Staff thread and verify the four tools and coverage metadata.
5. Roll back by removing the MCP registration; no thread history or monitor persistence requires cleanup.