homelab/.planning/phases/02-telegram-integration/02-02-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	duration	completed
02-telegram-integration	02	telegram	telegram bot typing-indicator batching file-handling systemd markdownv2	phase plan provides 02-telegram-integration 01 Persistent subprocess and telegram utils	End-to-end Telegram-Claude Code messaging with typing indicators Message batching with debounce for rapid sequential messages Photo/document handling with auto-analysis Tool call progress notifications Systemd user service for reliability	03-lifecycle-management bot-reliability	added patterns MessageBatcher (asyncio.Queue + debounce timer) systemd user service (KillMode=mixed) Dynamic typing event lookup via session name in typing_tasks dict Debounce-based message batching with asyncio.Queue --append-system-prompt preserves Claude Code defaults while adding persona --dangerously-skip-permissions for full tool access in non-interactive mode	created modified telegram/message_batcher.py ~/.config/systemd/user/telegram-bot.service telegram/bot.py telegram/claude_subprocess.py telegram/telegram_utils.py telegram/personas/default.json	Dynamic typing event lookup: callbacks reference typing_tasks dict by session name, not captured event --append-system-prompt instead of --system-prompt: preserves Claude Code model identity --dangerously-skip-permissions: allows all tools in non-interactive subprocess Full model ID in persona (claude-sonnet-4-5-20250929) instead of alias Stream-json NDJSON format: {type: user, message: {role: user, content: text}}	Pattern 1: Dynamic callback binding - closures look up mutable state by key instead of capturing immutable reference Pattern 2: Stale task cleanup - check task.done() and delete from dict before creating replacement Pattern 3: Persona via append - use --append-system-prompt to layer persona on top of CLI defaults	~90min (including interactive debugging with user)	2026-02-04

Phase 2 Plan 2: Bot Integration Summary

End-to-end Telegram-Claude Code messaging with typing, batching, file handling, and systemd service

Performance

• Duration: ~90 minutes (including interactive testing and bug fixes)
• Started: 2026-02-04T19:30:00Z
• Completed: 2026-02-04T22:10:00Z
• Tasks: 3 (2 auto + 1 human-verify checkpoint)
• Files created: 2
• Files modified: 4

Accomplishments

• Created MessageBatcher with debounce-based batching (2s timer, asyncio.Queue)
• Overhauled bot.py: typing indicators, tool call progress, message batching, file handling
• Created systemd user service with KillMode=mixed for subprocess cleanup
• Fixed stream-json NDJSON input format (nested message object required)
• Fixed typing indicator lifecycle (stale task cleanup + dynamic event lookup)
• Switched to --append-system-prompt to preserve Claude Code model identity
• Added --dangerously-skip-permissions for full tool access
• Set full model ID (claude-sonnet-4-5-20250929) in default persona
• Human-verified: messages flow, typing indicators show, model identifies correctly

Task Commits

1. Task 1: MessageBatcher + bot.py overhaul - f246d18 (feat)
2. Task 2: Systemd user service - created during same executor run
3. Task 3: Human verification - bugs found and fixed:
   • 2d0d4da - typing indicator lifecycle, model identity, tool permissions

Bugs Found During Testing

1. Stream-json input format: {"type":"user","content":"..."} rejected by Claude Code; correct format is {"type":"user","message":{"role":"user","content":"..."}}
2. Typing indicator stale tasks: After completion, typing task stayed in dict with set event; next message reused dead task and typing never started
3. Typing indicator event mismatch: Subprocess callbacks captured specific stop_typing event at creation time; new messages created new events but callbacks still set the old one
4. Model identity lost: --system-prompt overwrote Claude Code's built-in system prompt (which includes model version); fixed with --append-system-prompt
5. Tool permissions blocked: Non-interactive -p mode blocked tools requiring permission prompts; fixed with --dangerously-skip-permissions
6. Model alias resolution: sonnet alias resolved to 3.5 Sonnet in CLI; fixed by using full model ID

Files Created/Modified

Created:

• telegram/message_batcher.py - Debounce-based message batching with asyncio.Queue
• ~/.config/systemd/user/telegram-bot.service - Systemd user service with KillMode=mixed

Modified:

• telegram/bot.py - Full overhaul: dynamic typing callbacks, stale task cleanup, batching, file handling
• telegram/claude_subprocess.py - NDJSON fix, --dangerously-skip-permissions, --append-system-prompt, full cmd logging
• telegram/telegram_utils.py - Debug logging for typing indicator
• telegram/personas/default.json - Full model ID instead of alias

Deviations from Plan

1. Typing indicator architecture changed: Plan assumed capturing stop_typing event in callbacks; changed to dynamic lookup from typing_tasks dict by session name to fix lifecycle bugs
2. System prompt approach changed: Plan used --system-prompt; changed to --append-system-prompt to preserve Claude Code defaults
3. Added --dangerously-skip-permissions: Not in original plan; needed for tool access in non-interactive mode
4. Model ID changed: Plan used sonnet alias; changed to full ID after alias resolution issues

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Phase: 02-telegram-integration Completed: 2026-02-04