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Readme

acp-discord

Discord bot that connects coding agents (Claude Code, Codex, etc.) to Discord channels via the Agent Client Protocol (ACP).

Send a message in Discord, get AI coding assistance back — with tool call visualization, permission prompts, and real-time streaming.

Features

Slash commands & mentions — /ask <message>, /clear, or @bot message
Real-time streaming — agent responses stream into Discord with smart message splitting
File diffs — see unified diffs in Discord when the agent modifies files
Tool call visualization — see what the agent is doing (⏳ pending → 🔄 running → ✅ done / ❌ failed), with a ⏹️ stop button to cancel
Permission UI — Discord buttons for approving/denying agent actions, with file diffs shown inline for review before approval
Discord channel management — agents can create/delete/modify Discord channels via MCP tools, with user confirmation for all mutating operations
Auto-reply mode — optionally respond to all messages in a channel, not just mentions
Multi-agent support — different channels can use different agents
Daemon mode — runs in background with auto-start (systemd/launchd)
Self-update — acp-discord update to update in-place, auto-restarts the daemon
Interactive setup — guided init wizard for first-time configuration

Prerequisites

Node.js >= 18
A Discord bot token (create one here)
An ACP-compatible coding agent installed and working — the init wizard uses an agent to help generate your config. For example, install Claude Code and verify it runs with claude --version.

Quick Start

# Run the setup wizard (interactive, agent-driven)
npx acp-discord init

# Start the daemon
npx acp-discord daemon start

Configuration

Config lives at ~/.acp-discord/config.toml:

[discord]
token = "your-discord-bot-token"

[agents.claude]
command = "claude-code"
args = ["--acp"]
cwd = "/path/to/your/project"
idle_timeout = 600  # seconds before idle session is terminated (default: 600)
discord_tools = true  # enable Discord channel management MCP tools (default: false)

[channels.1234567890123456]
agent = "claude"
cwd = "/override/path"   # optional, per-channel working directory override
auto_reply = true         # optional, respond to all messages (default: false, mention-only)

Discord Bot Setup

Go to Discord Developer Portal
Create a new application → Bot → copy the token
Enable Message Content Intent under Bot settings
Invite the bot to your server with bot + applications.commands scopes
Copy the channel ID(s) you want the bot to respond in (right-click channel → Copy Channel ID)

Usage

CLI Commands

# Interactive setup wizard
acp-discord init

# Daemon management
acp-discord daemon start    # Start in background
acp-discord daemon run      # Run in foreground (for service managers)
acp-discord daemon stop     # Graceful shutdown
acp-discord daemon status   # Check if running

# Auto-start on boot
acp-discord daemon enable   # Setup systemd (Linux) / launchd (macOS)
acp-discord daemon disable  # Remove auto-start

# Self-update
acp-discord update          # Update to latest version, auto-restarts daemon

Discord Commands

Command	Description
`/ask <message>`	Send a prompt to the coding agent
`/clear`	Clear the current session and start fresh
`@bot <message>`	Mention the bot to send a prompt

If a prompt is sent while the agent is already working, it gets queued and processed after the current task completes.

Channel Management

When discord_tools = true is set on an agent, the bot injects an MCP server that gives the agent these tools:

Tool	Description	Requires Approval
`list_channels`	List all text channels in the server	No
`create_channel`	Create a new text channel	Yes
`delete_channel`	Delete a channel	Yes
`update_channel`	Update channel name/topic	Yes
`send_message`	Send a message to a channel	No

All mutating operations (create, delete, update) require user approval via Discord buttons before executing. Newly created channels are automatically registered so the bot responds to messages there.

Development

pnpm dev          # Run with tsx (auto-reload)
pnpm test         # Run tests
pnpm test:watch   # Watch mode

Architecture

Discord User
    ↓  slash command / mention
Discord Bot (discord.js)
    ↓  channel routing           ↑ IPC (Unix socket)
Session Manager                MCP Server (discord-channels)
    ↓  spawn agent subprocess      ↑ MCP tools (stdio)
ACP Client (JSON-RPC over stdio)
    ↓  prompt / permissions / tool calls
Agent (claude-code, codex, etc.)
    ↑
Discord messages, embeds, buttons

License

MIT