docs(03-01): complete idle timer foundation plan
Tasks completed: 2/2 - Created SessionIdleTimer module with asyncio-based timeout detection - Extended session metadata with idle_timeout field and PID tracking SUMMARY: .planning/phases/03-lifecycle-management/03-01-SUMMARY.md
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@ -9,19 +9,19 @@ See: .planning/PROJECT.md (updated 2026-02-04)
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## Current Position
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Phase: 2 of 4 (Telegram Integration) — COMPLETE
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Plan: 02-02 complete (2 of 2 plans completed)
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Status: Complete
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Last activity: 2026-02-04 — Completed 02-02-PLAN.md (Bot integration with batching, file handling, systemd service)
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Phase: 3 of 4 (Lifecycle Management) — IN PROGRESS
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Plan: 03-01 complete (1 of 3 plans completed)
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Status: In progress
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Last activity: 2026-02-04 — Completed 03-01-PLAN.md (Idle timer foundation)
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Progress: [██████████░░░░░] 50%
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Progress: [████████████░░░] 60%
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## Performance Metrics
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**Velocity:**
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- Total plans completed: 5
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- Average duration: 23 min
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- Total execution time: 1.95 hours
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- Total plans completed: 6
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- Average duration: 18 min
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- Total execution time: 1.98 hours
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**By Phase:**
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@ -29,10 +29,11 @@ Progress: [██████████░░░░░] 50%
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|-------|-------|-------|----------|
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| 1 | 3 | 27min | 9min |
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| 2 | 2 | 95min | 48min |
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| 3 | 1 | 2min | 2min |
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**Recent Trend:**
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- Last 3 plans: 01-03 (15min), 02-01 (5min), 02-02 (90min)
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- 02-02 included interactive debugging and human verification
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- Last 3 plans: 02-01 (5min), 02-02 (90min), 03-01 (2min)
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- 03-01: Fast foundation module creation
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*Updated after each plan completion*
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@ -62,6 +63,9 @@ Recent decisions affecting current work:
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- --dangerously-skip-permissions: Full tool access in non-interactive subprocess (02-02)
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- Full model ID in persona: Use claude-sonnet-4-5-20250929 instead of alias (02-02)
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- Stream-json NDJSON format: {type: user, message: {role: user, content: text}} (02-02)
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- Default 600s (10 min) idle timeout per session: Balances responsiveness with resource conservation (03-01)
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- Timer reset via task cancellation: Cancel existing task, create new background sleep task (03-01)
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- PID property returns live process ID only: None if terminated to prevent stale references (03-01)
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### Pending Todos
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@ -80,9 +84,12 @@ None yet.
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- ~~Typing indicator not visible despite API success~~ — RESOLVED: Stale task cleanup + dynamic event lookup (02-02)
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- ~~Model identifies as wrong version~~ — RESOLVED: --append-system-prompt preserves CLI defaults (02-02)
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**Phase 3 (Lifecycle Management) — IN PROGRESS**
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- None yet
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## Session Continuity
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Last session: 2026-02-04T22:10:00Z
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Stopped at: Completed Phase 2 (Telegram Integration)
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Last session: 2026-02-04T23:29:00Z
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Stopped at: Completed 03-01-PLAN.md (Idle timer foundation)
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Resume file: None
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Next: Phase 3 (Lifecycle Management)
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Next: 03-02 (Suspend/Resume Implementation)
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102
.planning/phases/03-lifecycle-management/03-01-SUMMARY.md
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102
.planning/phases/03-lifecycle-management/03-01-SUMMARY.md
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@ -0,0 +1,102 @@
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---
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phase: 03-lifecycle-management
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plan: 01
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subsystem: infra
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tags: [asyncio, python, session-management, lifecycle]
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# Dependency graph
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requires:
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- phase: 02-telegram-integration
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provides: Session management and persistent subprocess architecture
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provides:
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- SessionIdleTimer class for per-session timeout detection
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- Session metadata with idle_timeout field for lifecycle configuration
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- ClaudeSubprocess.pid property for process tracking
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affects: [03-lifecycle-management]
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "Asyncio-based timer with reset() cancellation pattern"
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- "Session metadata defaults for configurable behavior"
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key-files:
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created:
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- telegram/idle_timer.py
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modified:
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- telegram/session_manager.py
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- telegram/claude_subprocess.py
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key-decisions:
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- "Default 600s (10 min) idle timeout per session"
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- "Timer reset via task cancellation + new task creation"
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- "PID property returns live process ID only (None if terminated)"
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patterns-established:
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- "Timer pattern: cancel existing task, create new background sleep task"
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- "Metadata defaults: provide sensible values in create_session()"
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# Metrics
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duration: 2min
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completed: 2026-02-04
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---
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# Phase 03 Plan 01: Idle Timer Foundation Summary
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**Asyncio-based per-session idle timer with configurable timeout metadata and subprocess PID tracking**
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## Performance
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- **Duration:** 2 min
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- **Started:** 2026-02-04T23:27:29Z
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- **Completed:** 2026-02-04T23:29:00Z
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- **Tasks:** 2
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- **Files modified:** 3
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## Accomplishments
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- Created SessionIdleTimer class with asyncio timer management
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- Extended session metadata to include idle_timeout field (default 600s)
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- Added PID property to ClaudeSubprocess for process tracking
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- Foundation ready for suspend/resume lifecycle implementation
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Create SessionIdleTimer module** - `488d94e` (feat)
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2. **Task 2: Extend session metadata and subprocess PID tracking** - `74f12a1` (feat)
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## Files Created/Modified
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- `telegram/idle_timer.py` - SessionIdleTimer class with reset(), cancel(), and activity tracking properties
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- `telegram/session_manager.py` - Added idle_timeout to metadata, get_session_timeout() helper method
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- `telegram/claude_subprocess.py` - Added pid property returning live process ID
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## Decisions Made
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- Default idle timeout: 600 seconds (10 minutes) - balances responsiveness with resource conservation
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- Timer reset pattern: Cancel existing asyncio task and create new one (clean slate approach)
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- PID property returns None for terminated processes - prevents stale PID references
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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Ready for next plan (03-02: Suspend/Resume Implementation):
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- Idle timer module complete and tested
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- Session metadata supports timeout configuration
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- Subprocess exposes PID for lifecycle tracking
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- All imports verified, no blockers
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---
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*Phase: 03-lifecycle-management*
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*Completed: 2026-02-04*
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