LangBot/plugins/misc/GroupChatSummary

GroupChatSummary

Summarize group chat messages using LLM. Never miss important discussions again.

Features

• Message Collection: Automatically records all group messages
• Manual Summary: Use !summary command to get instant summaries
• Time-based Summary: Summarize messages from the last N hours
• LLM Tool: AI can call the summary tool when users ask "what did I miss?"
• Auto Summary: Optionally trigger summaries after N messages accumulate
• Persistent Storage: Message history survives plugin restarts

Commands

Command	Description
!summary [count]	Summarize recent N messages (default: 100)
!summary hours <N>	Summarize messages from last N hours
!summary status	Show message buffer status
!summary clear	Clear stored messages

Configuration

Option	Default	Description
Max Messages	500	Maximum messages stored per group
Default Summary Count	100	Messages to summarize by default
Auto Summary	Off	Auto-summarize every N messages
Auto Summary Threshold	200	Messages before auto-trigger
Language	Chinese	Summary output language

How It Works

1. The plugin listens to all group messages and stores them in memory (persisted to storage)
2. When triggered (command, tool call, or auto), it formats the messages and sends them to your configured LLM
3. The LLM generates a structured summary with key topics, decisions, and action items

Example

User: !summary 50
Bot: ⏳ Summarizing 50 messages...
Bot: 📋 Group Chat Summary

**Project Discussion**
- Team decided to use React for the frontend
- Backend API deadline moved to next Friday

**Action Items**
- @Alice: Prepare design mockups by Wednesday
- @Bob: Set up CI/CD pipeline

Shared runtime

manifest.yaml declares sharedRuntime: shared-runtime-v1 + componentModel: stateless-v1, so this plugin can be placed on a multi-tenant shared worker: config is read per invocation, message buffers are keyed by installation binding and loaded on demand, and the detached auto-summary task is stopped in on_installation_revoked. See SHARED_RUNTIME.md for the details and known limits. This source is not certified.