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* Fix action directives and reactions * revert package-lock.json to main Drop unrelated lockfile churn from this PR -- the peer dependency flag changes were artifacts of a different npm version. Written by Cameron ◯ Letta Code "The lockfile is a contract, not a suggestion." -- every CI pipeline ever * docs: add response directives documentation Document the XML action directives system (introduced in #239, parsing fixes in #248): <actions> block format, <react> directive, attribute quoting rules, channel support matrix, emoji alias tables, streaming holdback behavior, and extension guide. Written by Cameron ◯ Letta Code "Documentation is a love letter to your future self." -- Damian Conway --------- Co-authored-by: Jason Carreira <jason@visotrust.com> Co-authored-by: Cameron <cameron@pfiffer.org>
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LettaBot Documentation
LettaBot is a multi-channel AI assistant powered by Letta that provides persistent memory and local tool execution across Telegram, Slack, Discord, WhatsApp, and Signal.
Guides
- Getting Started - Installation and basic setup
- Self-Hosted Setup - Run with your own Letta server
- Configuration Reference - All config options
- Commands Reference - Bot commands reference
- CLI Tools - Agent/operator CLI tools
- Chat API - HTTP endpoint for programmatic agent access
- Response Directives - XML action directives (reactions, etc.)
- Scheduling Tasks - Cron jobs and heartbeats
- Gmail Pub/Sub - Email notifications integration
- Railway Deployment - Deploy to Railway
- Releasing - How to create releases
Channel Setup
- Telegram Setup - BotFather token setup
- Slack Setup - Socket Mode configuration
- Discord Setup - Bot application setup
- WhatsApp Setup - Baileys/QR code setup
- Signal Setup - signal-cli daemon setup
Architecture
LettaBot uses a single agent with unified memory across all channels:
┌──────────────────────────────────────────────────────────────────────────┐
│ Your Server / Machine │
│ │
│ ┌────────────┐ ┌────────────┐ ┌────────────┐ ┌──────────┐ ┌───────┐ │
│ │ Telegram │ │ Slack │ │ Discord │ │ WhatsApp │ │ Signal│ │
│ │ (grammY) │ │ (Socket) │ │ (Gateway) │ │(Baileys) │ │ (CLI) │ │
│ └─────┬──────┘ └─────┬──────┘ └─────┬──────┘ └────┬─────┘ └───┬───┘ │
│ │ │ │ │ │ │
│ └───────────────┴───────────────┴──────────────┴────────────┘ │
│ │ │
│ ┌─────────▼─────────┐ │
│ │ LettaBot Core │ │
│ │ (TypeScript) │ │
│ │ │ │
│ │ • Message Router │ │
│ │ • Session Mgmt │ │
│ │ • Heartbeat/Cron │ │
│ └─────────┬─────────┘ │
│ │ │
│ ┌─────────▼─────────┐ │
│ │ Letta Code SDK │ │
│ │ (subprocess) │ │
│ │ │ │
│ │ Local Tools: │ │
│ │ • Read/Glob/Grep │ │
│ │ • Bash │ │
│ │ • web_search │ │
│ └─────────┬─────────┘ │
└────────────────────────────────────┼──────────────────────────────────────┘
│ Letta API
▼
┌──────────────────────────┐
│ Letta Server │
│ (api.letta.com or │
│ self-hosted Docker) │
│ │
│ • Agent Memory │
│ • LLM Inference │
│ • Conversation History │
└──────────────────────────┘
Key Features
- Multi-Channel - Chat across Telegram, Slack, Discord, WhatsApp, and Signal
- Unified Memory - Single agent remembers everything from all channels
- Persistent Memory - Conversations persist across days/weeks/months
- Local Tool Execution - Agent can search files, run commands on your machine
- Voice Messages - Automatic transcription via OpenAI Whisper
- Streaming Responses - Real-time message updates as the agent thinks
- Background Tasks - Heartbeats and cron jobs for proactive actions