From 6f64ec3e8c03159afa4b00837a4d95f477c4941c Mon Sep 17 00:00:00 2001 From: Lukas May Date: Fri, 30 Jan 2026 13:28:15 +0100 Subject: [PATCH] docs(01-05): complete server mode plan Tasks completed: 2/2 - HTTP server with health endpoint and PID file - Graceful shutdown with signal handlers SUMMARY: .planning/phases/01-core-infrastructure/01-05-SUMMARY.md Phase 1 (Core Infrastructure) complete. --- .planning/ROADMAP.md | 6 +- .planning/STATE.md | 21 +-- .../01-core-infrastructure/01-05-SUMMARY.md | 126 ++++++++++++++++++ 3 files changed, 140 insertions(+), 13 deletions(-) create mode 100644 .planning/phases/01-core-infrastructure/01-05-SUMMARY.md diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index 39a8948..188a685 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -14,7 +14,7 @@ None - Integer phases (1, 2, 3): Planned milestone work - Decimal phases (2.1, 2.2): Urgent insertions (marked with INSERTED) -- [ ] **Phase 1: Core Infrastructure** - CLI binary, server mode, process lifecycle, graceful shutdown +- [x] **Phase 1: Core Infrastructure** - CLI binary, server mode, process lifecycle, graceful shutdown - [ ] **Phase 2: Data Layer** - SQLite database with task hierarchy schema - [ ] **Phase 3: Git Integration** - Worktree isolation per agent with proper lifecycle - [ ] **Phase 4: Agent Lifecycle** - Spawn, stop, list agents with session persistence @@ -36,7 +36,7 @@ Plans: - [x] 01-02: CLI Entry Point (Wave 2) - [x] 01-03: Process Management (Wave 2) - [x] 01-04: Logging Infrastructure (Wave 2) -- [ ] 01-05: Coordination Server & Shutdown (Wave 3) +- [x] 01-05: Coordination Server & Shutdown (Wave 3) ### Phase 2: Data Layer **Goal**: SQLite database with Drizzle ORM, task hierarchy schema (initiative → phase → plan → task) @@ -112,7 +112,7 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6 → 7 | Phase | Plans Complete | Status | Completed | |-------|----------------|--------|-----------| -| 1. Core Infrastructure | 4/5 | In progress | - | +| 1. Core Infrastructure | 5/5 | Complete | 2026-01-30 | | 2. Data Layer | 0/? | Not started | - | | 3. Git Integration | 0/? | Not started | - | | 4. Agent Lifecycle | 0/? | Not started | - | diff --git a/.planning/STATE.md b/.planning/STATE.md index ef34ffc..5b00ccb 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -10,27 +10,27 @@ See: .planning/PROJECT.md (updated 2026-01-30) ## Current Position Phase: 1 of 7 (Core Infrastructure) -Plan: 4 of 5 in current phase -Status: In progress -Last activity: 2026-01-30 — Completed 01-04-PLAN.md +Plan: 5 of 5 in current phase +Status: Phase complete +Last activity: 2026-01-30 — Completed 01-05-PLAN.md -Progress: ████████░░ 57% +Progress: ██████████ 71% ## Performance Metrics **Velocity:** -- Total plans completed: 4 -- Average duration: 2 min -- Total execution time: 8 min +- Total plans completed: 5 +- Average duration: 3 min +- Total execution time: 15 min **By Phase:** | Phase | Plans | Total | Avg/Plan | |-------|-------|-------|----------| -| 1 | 4/5 | 8 min | 2 min | +| 1 | 5/5 | 15 min | 3 min | **Recent Trend:** -- Last 5 plans: 01-01 (2 min), 01-02 (1 min), 01-03 (0 min), 01-04 (5 min) +- Last 5 plans: 01-01 (2 min), 01-02 (1 min), 01-03 (0 min), 01-04 (5 min), 01-05 (7 min) - Trend: Steady ## Accumulated Context @@ -43,6 +43,7 @@ Recent decisions affecting current work: - 01-01: Merged Tasks 1 and 2 since build verification required source files - 01-02: Task 2 required no code changes - existing bin config was correct - 01-04: Log directory structure ~/.cw/logs/{processId}/ with timestamp prefixes +- 01-05: Used node:http instead of Express for minimal server footprint ### Pending Todos @@ -55,5 +56,5 @@ None yet. ## Session Continuity Last session: 2026-01-30 -Stopped at: Completed 01-04-PLAN.md +Stopped at: Completed 01-05-PLAN.md (Phase 1 complete) Resume file: None diff --git a/.planning/phases/01-core-infrastructure/01-05-SUMMARY.md b/.planning/phases/01-core-infrastructure/01-05-SUMMARY.md new file mode 100644 index 0000000..dc6494f --- /dev/null +++ b/.planning/phases/01-core-infrastructure/01-05-SUMMARY.md @@ -0,0 +1,126 @@ +--- +phase: 01-core-infrastructure +plan: 05 +subsystem: infra +tags: [http, server, graceful-shutdown, pid-file, coordination] + +# Dependency graph +requires: + - phase: 01-02 + provides: CLI entry point with Commander + - phase: 01-03 + provides: ProcessManager and ProcessRegistry for process lifecycle + - phase: 01-04 + provides: LogManager for logging infrastructure +provides: + - CoordinationServer class with HTTP health endpoint + - GracefulShutdown handler for SIGTERM/SIGINT/SIGHUP + - PID file management to prevent duplicate servers + - Server mode via cw --server flag +affects: [02-agent-lifecycle, 04-orchestration, monitoring] + +# Tech tracking +tech-stack: + added: [] + patterns: + - "Native node:http server (no Express for minimal footprint)" + - "PID file locking pattern for singleton server" + - "Signal handler orchestration with timeout" + +key-files: + created: + - src/server/types.ts + - src/server/index.ts + - src/server/shutdown.ts + modified: + - src/cli/index.ts + - src/bin/cw.ts + +key-decisions: + - "Used node:http instead of Express for minimal dependencies" + - "10-second shutdown timeout before force exit" + - "Double SIGINT forces immediate exit for stuck situations" + - "PID file at ~/.cw/server.pid with stale detection" + +patterns-established: + - "Server module structure: types.ts, index.ts (main class), shutdown.ts" + - "Health endpoint pattern: GET /health returns {status, uptime, processCount}" + - "Signal handling: install() method registers handlers after server starts" + +# Metrics +duration: 7min +completed: 2026-01-30 +--- + +# Phase 1 Plan 05: Server Mode Summary + +**HTTP coordination server with health endpoint, PID file management, and graceful shutdown via SIGTERM/SIGINT/SIGHUP** + +## Performance + +- **Duration:** 7 min +- **Started:** 2026-01-30T12:19:21Z +- **Completed:** 2026-01-30T12:27:05Z +- **Tasks:** 2 +- **Files created:** 3 +- **Files modified:** 2 + +## Accomplishments + +- CoordinationServer class using native node:http (no Express dependency) +- GET /health endpoint returning status, uptime, and processCount +- GET /status endpoint returning server state and process list +- PID file management with stale PID detection +- GracefulShutdown class handling SIGTERM, SIGINT, SIGHUP +- 10-second timeout before force exit +- Double SIGINT for immediate force exit +- CLI --server flag and --port option integration + +## Task Commits + +Each task was committed atomically: + +1. **Task 1: Create HTTP server with health endpoint and PID file** - `bec46aa` (feat) +2. **Task 2: Implement graceful shutdown** - `59b2337` (feat) + +**Plan metadata:** (this commit) + +## Files Created/Modified + +- `src/server/types.ts` - ServerConfig, ServerState, HealthResponse, StatusResponse types +- `src/server/index.ts` - CoordinationServer class with HTTP routes and PID file management +- `src/server/shutdown.ts` - GracefulShutdown class with signal handlers +- `src/cli/index.ts` - Added --server flag handling and startServer function +- `src/bin/cw.ts` - Updated to use async runCli() + +## Decisions Made + +| Decision | Rationale | +|----------|-----------| +| node:http over Express | Minimal dependencies, server only needs 2 routes | +| 10-second shutdown timeout | Industry standard, enough time for graceful cleanup | +| PID file at ~/.cw/server.pid | Follows Unix conventions, easy to check/remove manually | +| Stale PID detection | Handles crashes gracefully by checking if PID is alive | + +## Deviations from Plan + +None - plan executed exactly as written. + +## Issues Encountered + +None. + +## User Setup Required + +None - no external service configuration required. + +## Next Phase Readiness + +- Server infrastructure complete, satisfies INFRA-04 (graceful shutdown) +- Health endpoint enables monitoring and readiness checks +- Foundation ready for agent coordination in Phase 4 +- Server mode is the entry point for the coordination layer + +--- +*Phase: 01-core-infrastructure* +*Completed: 2026-01-30*