diff --git a/.planning/STATE.md b/.planning/STATE.md index 2bf1b43..6f0bd8c 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -10,18 +10,18 @@ See: .planning/PROJECT.md (updated 2026-02-04) ## Current Position Phase: 3 of 4 (Lifecycle Management) — IN PROGRESS -Plan: 03-01 complete (1 of 3 plans completed) +Plan: 03-02 complete (2 of 3 plans completed) Status: In progress -Last activity: 2026-02-04 — Completed 03-01-PLAN.md (Idle timer foundation) +Last activity: 2026-02-04 — Completed 03-02-PLAN.md (Suspend/Resume Implementation) -Progress: [████████████░░░] 60% +Progress: [████████████░░░] 67% ## Performance Metrics **Velocity:** -- Total plans completed: 6 -- Average duration: 18 min -- Total execution time: 1.98 hours +- Total plans completed: 7 +- Average duration: 16 min +- Total execution time: 2.05 hours **By Phase:** @@ -29,11 +29,11 @@ Progress: [████████████░░░] 60% |-------|-------|-------|----------| | 1 | 3 | 27min | 9min | | 2 | 2 | 95min | 48min | -| 3 | 1 | 2min | 2min | +| 3 | 2 | 6min | 3min | **Recent Trend:** -- Last 3 plans: 02-01 (5min), 02-02 (90min), 03-01 (2min) -- 03-01: Fast foundation module creation +- Last 3 plans: 02-02 (90min), 03-01 (2min), 03-02 (4min) +- Phase 3 maintaining fast execution: lightweight integration tasks *Updated after each plan completion* @@ -66,6 +66,11 @@ Recent decisions affecting current work: - Default 600s (10 min) idle timeout per session: Balances responsiveness with resource conservation (03-01) - Timer reset via task cancellation: Cancel existing task, create new background sleep task (03-01) - PID property returns live process ID only: None if terminated to prevent stale references (03-01) +- Silent suspension: No Telegram message when session auto-suspends (03-02, from CONTEXT.md) +- Switching sessions leaves previous subprocess running: It suspends on its own timer (03-02, from CONTEXT.md) +- Race prevention via per-session asyncio.Lock: Prevents concurrent suspend + resume on same session (03-02) +- Resume shows idle duration if >1 min: "Resuming session (idle for 15 min)..." (03-02) +- Orphaned PID verification via /proc/cmdline: Only kill claude processes at startup (03-02) ### Pending Todos @@ -89,7 +94,7 @@ None yet. ## Session Continuity -Last session: 2026-02-04T23:29:00Z -Stopped at: Completed 03-01-PLAN.md (Idle timer foundation) +Last session: 2026-02-04T23:37:56Z +Stopped at: Completed 03-02-PLAN.md (Suspend/Resume Implementation) Resume file: None -Next: 03-02 (Suspend/Resume Implementation) +Next: 03-03 (Output Modes) diff --git a/.planning/phases/03-lifecycle-management/03-02-SUMMARY.md b/.planning/phases/03-lifecycle-management/03-02-SUMMARY.md new file mode 100644 index 0000000..77c96a6 --- /dev/null +++ b/.planning/phases/03-lifecycle-management/03-02-SUMMARY.md @@ -0,0 +1,124 @@ +--- +phase: 03-lifecycle-management +plan: 02 +subsystem: bot-lifecycle +tags: [asyncio, telegram, subprocess-management, idle-timeout, graceful-shutdown] + +# Dependency graph +requires: + - phase: 03-01 + provides: SessionIdleTimer class with reset/cancel and PID tracking in ClaudeSubprocess +provides: + - Automatic session suspension after idle timeout + - Transparent session resume with history preservation + - Race-free suspend/resume via asyncio.Lock per session + - Orphaned subprocess cleanup at bot startup + - Graceful shutdown with subprocess termination + - /timeout command for per-session idle configuration + - /sessions command for session status overview +affects: [03-03-output-modes] + +# Tech tracking +tech-stack: + added: [] + patterns: + - "Race prevention via per-session asyncio.Lock for concurrent suspend/resume" + - "Silent suspension (no Telegram notification) per CONTEXT.md decision" + - "Resume detection via .claude/ directory existence check" + - "Idle timer reset in on_complete callback (timer only counts after Claude finishes)" + +key-files: + created: [] + modified: + - telegram/bot.py + +key-decisions: + - "Silent suspension (no Telegram notification) per CONTEXT.md LOCKED decision" + - "Race prevention via subprocess_locks dict: one asyncio.Lock per session" + - "Resume shows idle duration if >1 min (e.g., 'Resuming session (idle for 15 min)...')" + - "Orphaned PID verification via /proc/cmdline check (only kill claude processes)" + - "Bot shutdown uses post_shutdown callback (python-telegram-bot handles signals)" + +patterns-established: + - "Per-session locking: subprocess_locks.setdefault(session_name, asyncio.Lock())" + - "Idle timer lifecycle: create on session spawn, reset in on_complete, cancel on archive" + - "Resume status message format: 'Resuming session (idle for Xm)...'" + +# Metrics +duration: 4min +completed: 2026-02-04 +--- + +# Phase 3 Plan 2: Suspend/Resume Implementation Summary + +**Automatic session suspension after 10min idle, transparent resume with full history, race-free with asyncio.Lock per session** + +## Performance + +- **Duration:** 4 min +- **Started:** 2026-02-04T23:33:30Z +- **Completed:** 2026-02-04T23:37:56Z +- **Tasks:** 2 +- **Files modified:** 1 + +## Accomplishments +- Sessions automatically suspend after idle timeout (subprocess terminated, metadata updated, silent) +- User messages to suspended sessions transparently resume with full history +- Race condition between timeout-fire and user-message prevented via asyncio.Lock per session +- Bot startup kills orphaned subprocess PIDs (verified via /proc/cmdline) +- Bot shutdown terminates all subprocesses gracefully (SIGTERM + timeout + SIGKILL) +- /timeout command sets per-session idle timeout (1-120 min range) +- /sessions command lists all sessions with LIVE/IDLE status, persona, and relative last-active time + +## Task Commits + +Each task was committed atomically: + +1. **Task 1: Suspend/resume wiring with race locks, startup cleanup, and graceful shutdown** - `6ebdb4a` (feat) + - suspend_session() callback for idle timer + - get_subprocess_lock() helper to prevent races + - Resume logic in handle_message/handle_photo/handle_document + - Idle timer reset in on_complete and on user activity + - cleanup_orphaned_subprocesses() with /proc/cmdline verification + - post_init() and post_shutdown() lifecycle callbacks + - Updated new_session, switch_session_cmd, archive_session_cmd, model_cmd + +2. **Task 2: /timeout and /sessions commands** - `06c5246` (feat) + - timeout_cmd() to set/show per-session idle timeout + - sessions_cmd() to list all sessions with status + - Registered both commands in main() + +## Files Created/Modified +- `telegram/bot.py` - Added suspend/resume lifecycle, idle timers, race locks, startup cleanup, graceful shutdown, /timeout and /sessions commands + +## Decisions Made + +**From plan execution:** +- Resume status message shows idle duration if >1 min: "Resuming session (idle for 15 min)..." +- Orphaned subprocess cleanup verifies PID is a claude process via /proc/cmdline before killing +- Bot shutdown uses post_shutdown callback (python-telegram-bot Application handles signal installation internally) + +**Already documented in STATE.md:** +- Silent suspension (no Telegram notification) - from CONTEXT.md LOCKED decision +- Switching sessions leaves previous subprocess running (suspends on its own timer) - from CONTEXT.md LOCKED decision + +## Deviations from Plan + +None - plan executed exactly as written. + +## Issues Encountered + +None + +## Next Phase Readiness + +**Ready for Phase 3 Plan 3 (Output Modes):** +- Session lifecycle fully implemented (suspend/resume, timeout configuration, status commands) +- Subprocess management robust (startup cleanup, graceful shutdown) +- Race conditions handled via per-session locks + +**No blockers or concerns** + +--- +*Phase: 03-lifecycle-management* +*Completed: 2026-02-04*