
feishu-codex-bridge
Run local Codex CLI from Feishu/Lark chat with sessions, attachments, and background service support
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/reason-machines/codex-skills --skill feishu-codex-bridge- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads feishu-codex-bridge automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Feishu Codex Bridge
Skill by ara.so — Codex Skills collection.
A local bridge that connects Feishu/Lark chat to your local Codex CLI. Send messages in Feishu/Lark and the bridge runs codex exec on your machine, streaming results back to chat with session persistence, file attachments, and background service support.
What It Does
- Chat-to-CLI Bridge: Converts Feishu/Lark messages into local
codex execcommands - Session Management: Maps each chat/topic to a persistent Codex session
- Attachment Support: Downloads images and files for Codex to process
- Workspace Management: Switch between named project directories
- Background Service: Runs as a macOS launchd service
- Access Control: Allowlist users, chats, and admin commands
- Lark-CLI Integration: Gives Codex API access to Lark messages, docs, calendars
Installation
Global NPM Install
npm i -g feishu-codex-bridge
feishu-codex-bridge --version
First-Time Setup
feishu-codex-bridge start
This interactive setup will:
- Find or install Codex CLI (
@openai/codex) - Check
codex loginstatus and prompt if needed - Show a QR code for Feishu/Lark app creation
- Create PersonalAgent app and save config
- Install and initialize
lark-cliwith the same App ID - Start listening for chat events
After setup, test in Feishu/Lark DM:
/status
Help me inspect this repo
Requirements
- Node.js >= 20
- Network access to npm, OpenAI/Codex, and Feishu/Lark platform
- Terminal for QR scan and login prompts
Custom Codex Binary
export CODEX_BIN="/path/to/codex"
Bridge checks these locations in order:
$CODEX_BINcodexin$PATH~/.feishu-codex-bridge/codex-cli/Applications/Codex.app/Contents/Resources/codex(macOS)
Configuration
Directory Structure
~/.feishu-codex-bridge/
├── config.json # App config and preferences
├── secrets.enc # Encrypted App Secret store
├── sessions.json # Chat-to-session mapping
├── workspaces.json # Named workspaces
├── processes.json # Live process registry
├── service.log # Service stdout
├── service.err.log # Service stderr
├── logs/YYYY-MM-DD.log # Daily structured logs
├── media/<chatId>/ # Downloaded attachments (24h TTL)
├── codex-cli/ # Private Codex CLI install
└── lark-cli/ # Private Lark CLI install
config.json Structure
{
"appId": "cli_a1234567890abcde",
"tenant": "feishu",
"preferences": {
"codexReasoningEffort": "high",
"timeout": 300,
"replyMode": "stream",
"allowedUsers": [],
"allowedChats": [],
"admins": []
}
}
Reasoning Effort
Set globally in config.json or per-chat via /config:
{
"preferences": {
"codexReasoningEffort": "xhigh"
}
}
Values: minimal, low, medium, high, xhigh. Omit to inherit from ~/.codex/config.toml.
Access Control
Restrict bot access in config.json:
{
"preferences": {
"allowedUsers": ["ou_1234567890abcdef"],
"allowedChats": ["oc_9876543210fedcba"],
"admins": ["ou_1234567890abcdef"]
}
}
Find IDs from logs:
grep '"event":"enter"' ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log | tail -5
Chat Commands
Status and Control
/status # Show cwd, session, agent, reasoning effort
/help # Show help card with all commands
/stop # Stop current Codex run
/reconnect # Reconnect WebSocket
/ps # List bridge processes
/exit <id|#> # Stop a bridge process (admin)
/doctor [description] # Diagnose bridge issues with Codex
Session Management
/new # Reset current chat's session
/reset # Alias for /new
/resume [N] # List and resume recent sessions in cwd
/timeout [N|off|default] # Set idle timeout for current session
Workspace Management
/cd <path> # Change working directory (resets session)
/ws list # List named workspaces
/ws save <name> [path] # Save workspace (defaults to current cwd)
/ws use <name> # Switch to workspace
/ws remove <name> # Delete workspace
Example workspace workflow:
/cd ~/projects/api-server
/ws save api-server
/cd ~/projects/frontend
/ws save frontend
/ws list
/ws use api-server
Configuration
/config # Open interactive config menu
/account # View or change Feishu/Lark app (admin)
Background Service
Install and Manage (macOS launchd)
# Complete foreground setup first
feishu-codex-bridge start
# Test with /status in chat, then Ctrl+C
# Install service
feishu-codex-bridge service install launchd
# Check status
feishu-codex-bridge service status
# View logs
feishu-codex-bridge service logs --follow
# Restart
feishu-codex-bridge service restart
# Uninstall
feishu-codex-bridge service uninstall
Service Logs
# Stdout
tail -f ~/.feishu-codex-bridge/service.log
# Stderr
tail -f ~/.feishu-codex-bridge/service.err.log
# Structured daily logs
tail -f ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log
Platform Configuration
After QR setup, configure in Feishu/Lark Developer Console:
Required Permission Scopes
im:messageim:message:send_as_botim:resourceim:chat(for group creation)drive:drive(for cloud-doc comments)
Event Subscriptions (Long-Connection Mode)
im.message.receive_v1card.action.triggerdrive.notice.comment_add_v1(for@botin docs)im.message.reaction.created_v1(optional)im.message.reaction.deleted_v1(optional)im.chat.member.bot.added_v1(optional)
Important: Bridge and lark-cli must use the same App ID. Do not run lark-cli config init --new after bridge setup.
User OAuth
Required only for accessing personal resources (user's docs, calendar, chat history):
export PATH="$HOME/.feishu-codex-bridge/lark-cli/node_modules/.bin:$PATH"
lark-cli auth login --recommend
Bot identity works for tenant/bot APIs. User OAuth needed for personal resource access.
Development
From Source
git clone https://github.com/QQQingyu/feishu-codex-bridge.git
cd feishu-codex-bridge
npx pnpm@10.20.0 install
npx pnpm@10.20.0 build
node bin/feishu-codex-bridge.mjs --help
Type Checking and Tests
npx pnpm@10.20.0 typecheck
npx pnpm@10.20.0 test
Troubleshooting
Bot is Silent
# Check process state
feishu-codex-bridge ps
feishu-codex-bridge service status
# Follow logs
feishu-codex-bridge service logs --follow
# Check today's structured logs
tail -f ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log
If process is running but bot doesn't respond, verify:
- Permission scopes in Developer Console
- Event subscriptions are enabled
- Long-connection mode is active
Codex CLI Issues
# Auto-diagnose
feishu-codex-bridge doctor
# Rerun setup
feishu-codex-bridge start
Common fixes:
- Codex not in PATH: Bridge auto-installs to
~/.feishu-codex-bridge/codex-cli - Not logged in: Setup prompts for
codex login - App mismatch: Ensure bridge and lark-cli use same App ID
Lark CLI Path Issues
Add to shell profile for direct terminal usage:
export PATH="$HOME/.feishu-codex-bridge/lark-cli/node_modules/.bin:$PATH"
For Codex runs, bridge handles PATH automatically.
App ID Mismatch
If lark-cli was initialized with a different app:
feishu-codex-bridge start
# Follow prompt to switch lark-cli back to bridge app
Never run lark-cli config init --new after bridge setup.
Hanging Codex Runs
# In chat:
/stop
# Set idle timeout globally
/config
# Or for current session only:
/timeout 10
Process Conflicts
Only one bridge instance per Feishu/Lark app. Stop foreground before installing service:
# Stop all bridge processes
feishu-codex-bridge ps
feishu-codex-bridge exit <id>
# Or kill directly
pkill -f feishu-codex-bridge
Log Analysis
# Recent events
grep '"event":"enter"' ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log | tail -10
# Errors
grep '"level":"error"' ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log | tail -10
# Specific chat
grep '"chatId":"oc_..."' ~/.feishu-codex-bridge/logs/$(date +%Y-%m-%d).log
Common Patterns
Multi-Project Workspace Setup
// Save workspaces for quick switching
/cd ~/work/backend-api
/ws save backend
/cd ~/work/frontend-app
/ws save frontend
/cd ~/work/docs
/ws save docs
// Switch between projects
/ws use backend
Help me add rate limiting to the auth endpoint
/ws use frontend
Update the login form to show better errors
/ws use docs
Generate API docs from the OpenAPI spec
Session Resume After Restart
# List recent sessions in current directory
/resume
# Resume specific session (shows last 10)
/resume 3
Per-Chat Reasoning Effort
# High effort for complex refactoring
/config
# Select "Reasoning Effort" > "xhigh"
# In different chat, use default
/config
# Select "Reasoning Effort" > "default"
Access Control Setup
{
"preferences": {
"allowedUsers": [
"ou_dev_team_member_1",
"ou_dev_team_member_2"
],
"allowedChats": [
"oc_dev_team_group"
],
"admins": [
"ou_dev_team_member_1"
]
}
}
Debugging Bridge Behavior
# In chat:
/doctor The bot isn't responding to file attachments
# Codex will analyze recent logs and suggest fixes
Architecture
Feishu/Lark Chat
↓ WebSocket
Bridge Process
↓ spawn
codex exec/resume
↓ optional
lark-cli API calls
↓
Streaming Card Reply
Responsibilities:
- Bridge: Event handling, session mapping, attachment downloads, card rendering, process lifecycle
- Codex CLI: Code reasoning, file editing, command execution, session resume
- Lark CLI: API tool for messages, docs, calendars, groups, OAuth
License
MIT
FAQ
What does the feishu-codex-bridge skill do?
Run local Codex CLI from Feishu/Lark chat with sessions, attachments, and background service support
How do I install feishu-codex-bridge?
Run npx skills add https://github.com/reason-machines/codex-skills --skill feishu-codex-bridge in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/feishu-codex-bridge/ (personal) or .claude/skills/feishu-codex-bridge/ (project).
Which AI agents can use feishu-codex-bridge?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is feishu-codex-bridge safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains feishu-codex-bridge?
It is published by reason-machines in reason-machines/codex-skills. It has 220 recorded installs.
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