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homelab/.planning/STATE.md
Mikkel Georgsen bf64e84eda docs(03-02): complete Suspend/Resume Implementation plan 
Tasks completed: 2/2
- Task 1: Suspend/resume wiring with race locks, startup cleanup, and graceful shutdown
- Task 2: /timeout and /sessions commands

SUMMARY: .planning/phases/03-lifecycle-management/03-02-SUMMARY.md
2026-02-04 23:39:05 +00:00

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Project State

Project Reference

See: .planning/PROJECT.md (updated 2026-02-04)

Core value: Frictionless conversation with Claude Code from anywhere via Telegram — no SSH, no manual inbox checking, just message and get a response. Current focus: Phase 2 complete, ready for Phase 3

Current Position

Phase: 3 of 4 (Lifecycle Management) — IN PROGRESS Plan: 03-02 complete (2 of 3 plans completed) Status: In progress Last activity: 2026-02-04 — Completed 03-02-PLAN.md (Suspend/Resume Implementation)

Progress: [████████████░░░] 67%

Performance Metrics

Velocity:

  • Total plans completed: 7
  • Average duration: 16 min
  • Total execution time: 2.05 hours

By Phase:

Phase Plans Total Avg/Plan
1 3 27min 9min
2 2 95min 48min
3 2 6min 3min

Recent Trend:

  • 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

Accumulated Context

Decisions

Decisions are logged in PROJECT.md Key Decisions table. Recent decisions affecting current work:

  • Claude Code CLI over raw API: Gets full tool access, --resume support, and all Claude Code features for free
  • Haiku polling + Opus conversation: Avoids burning expensive Opus tokens on idle monitoring (deferred to v2)
  • Path-based sessions: Leverages Claude Code's native session-per-directory behavior, files naturally scoped
  • Extend existing bot: Reuse proven Telegram integration rather than building from scratch
  • Sessions created as 'idle', activated explicitly: Creating doesn't mean in use, switch required (01-01)
  • Metadata read from disk on demand: No caching to avoid stale state (01-01)
  • Asyncio.gather for concurrent stream reading: Prevents pipe deadlock (01-02)
  • Fresh process per turn: Spawn new claude -p invocation for Phase 1 simplicity (01-02)
  • Callback architecture: Decouple subprocess from session management via on_output/on_error/on_complete/on_status (01-02)
  • Sibling imports over package imports: Avoids shadowing pip telegram package (01-03)
  • Archive sessions with tar+pigz: Compression + cleanup to sessions_archive/ (01-03)
  • Persistent subprocess instead of fresh per turn: Eliminates ~1s spawn overhead, maintains context (02-01)
  • Split messages at 4000 chars (not 4096): Leaves room for MarkdownV2 escape expansion (02-01)
  • Never split inside code blocks: Track in_code_block state, only split when safe (02-01)
  • Dynamic typing event lookup: Callbacks reference typing_tasks dict by session name, not captured event (02-02)
  • --append-system-prompt instead of --system-prompt: Preserves Claude Code model identity (02-02)
  • --dangerously-skip-permissions: Full tool access in non-interactive subprocess (02-02)
  • Full model ID in persona: Use claude-sonnet-4-5-20250929 instead of alias (02-02)
  • Stream-json NDJSON format: {type: user, message: {role: user, content: text}} (02-02)
  • 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

None yet.

Blockers/Concerns

Phase 1 (Session & Process Foundation) — COMPLETE

  • Claude Code CLI --resume behavior with pipes vs PTY unknown — RESOLVED
  • Output format for tool calls not documented — RESOLVED

Phase 2 (Telegram Integration) — COMPLETE

  • Non-persistent process model (spawned fresh per turn) — RESOLVED (02-01)
  • Message batching strategy needs validation — RESOLVED: Works with 2s debounce (02-02)
  • File upload flow needs end-to-end testing — RESOLVED: User-verified (02-02)
  • Typing indicator not visible despite API success — RESOLVED: Stale task cleanup + dynamic event lookup (02-02)
  • Model identifies as wrong version — RESOLVED: --append-system-prompt preserves CLI defaults (02-02)

Phase 3 (Lifecycle Management) — IN PROGRESS

  • None yet

Session Continuity

Last session: 2026-02-04T23:37:56Z Stopped at: Completed 03-02-PLAN.md (Suspend/Resume Implementation) Resume file: None Next: 03-03 (Output Modes)