Tools
Cursor Brain
By Use Cursor as the AI brain for OpenClaw — with full access to every plugin tool.
Install
openclaw plugins install /path/to/openclaw-cursor-brainConfiguration Example
{
"plugins": {
"entries": {
"openclaw-cursor-brain": {
"enabled": true,
"config": {
"model": "auto",
"fallbackModel": "sonnet-4.6"
}
}
}
}
}README
<p align="center">
<h1 align="center">openclaw-cursor-brain</h1>
<p align="center">
Use <a href="https://cursor.sh">Cursor</a> as the AI brain for <a href="https://github.com/openclaw/openclaw">OpenClaw</a> — with full access to every plugin tool.
</p>
<p align="center">
<a href="https://www.npmjs.com/package/openclaw-cursor-brain"><img src="https://img.shields.io/npm/v/openclaw-cursor-brain.svg" alt="npm version"></a>
<a href="https://www.npmjs.com/package/openclaw-cursor-brain"><img src="https://img.shields.io/npm/dm/openclaw-cursor-brain.svg" alt="npm downloads"></a>
<a href="https://github.com/openclaw/openclaw"><img src="https://img.shields.io/badge/OpenClaw-Plugin-orange.svg" alt="OpenClaw Plugin"></a>
<a href="https://cursor.sh"><img src="https://img.shields.io/badge/Cursor-Agent%20CLI-purple.svg" alt="Cursor"></a>
<a href="https://nodejs.org"><img src="https://img.shields.io/badge/Node.js-%3E%3D18-green.svg" alt="Node.js >= 18"></a>
<a href="https://opensource.org/licenses/MIT"><img src="https://img.shields.io/badge/License-MIT-blue.svg" alt="License: MIT"></a>
<br/>
<a href="./README_ZH.md">中文文档</a>
</p>
</p>
---
**openclaw-cursor-brain** is an [OpenClaw](https://github.com/openclaw/openclaw) plugin that turns [Cursor Agent CLI](https://cursor.sh) into a fully-integrated AI backend. It connects all OpenClaw plugin tools (Feishu, Slack, GitHub, custom plugins, etc.) to Cursor through the [Model Context Protocol (MCP)](https://modelcontextprotocol.io), giving the AI native access to every tool.
**Zero manual config.** Install, restart, done.
## How It Works
```
User message → OpenClaw Gateway → cursor-cli (CLI backend)
↓
Cursor Agent
↓
MCP Server (this plugin)
↓
Gateway REST API (/tools/invoke)
↓
Plugin tools (Feishu, Slack, …)
```
1. **On install** — auto-configures `~/.cursor/mcp.json` and the `cursor-cli` backend in `openclaw.json`.
2. **On each conversation** — `cursor-cli` spawns the MCP Server process.
3. **On MCP Server start** — reads `openclaw.json`, scans installed plugin source files for tool declarations, verifies each via the Gateway REST API, and registers them as MCP tools.
4. **On tool call** — Cursor Agent calls the tool through MCP; the server proxies it to the Gateway.
Newly installed OpenClaw plugins are **auto-discovered** — no extra configuration needed.
## Quick Start
### Prerequisites
- **Node.js** >= 18
- **[Cursor CLI](https://cursor.sh)** installed (`agent` command available)
- **OpenClaw Gateway** running
### Install
```bash
# From local path (development)
openclaw plugins install /path/to/openclaw-cursor-brain
# From .tgz archive (team distribution)
openclaw plugins install ./openclaw-cursor-brain-1.0.0.tgz
# From npm
openclaw plugins install openclaw-cursor-brain
# Restart the gateway to load the plugin
openclaw gateway restart
```
### Verify
```bash
openclaw cursor-brain doctor # Health check
openclaw cursor-brain status # Show configuration
```
## Building & Packaging
```bash
cd /path/to/openclaw-cursor-brain
npm pack
# → openclaw-cursor-brain-<version>.tgz (~12 KB)
```
Share the `.tgz` with teammates — they run `openclaw plugins install <file>.tgz` and dependencies install automatically.
## Configuration
All options go in `openclaw.json` under `plugins.entries.openclaw-cursor-brain.config`:
| Option | Type | Default | Description |
| --------------- | -------- | -------------- | ---------------------------------------------------------------------------------------------------------- |
| `cursorPath` | `string` | auto-detect | Path to the Cursor Agent CLI binary. Leave empty for automatic detection via `which agent` + common paths. |
| `model` | `string` | `"auto"` | Primary model, written as `cursor-cli/<model>` in `agents.defaults.model.primary`. |
| `fallbackModel` | `string` | `"sonnet-4.6"` | Fallback model, written to `agents.defaults.model.fallbacks`. |
Example:
```json
{
"plugins": {
"entries": {
"openclaw-cursor-brain": {
"enabled": true,
"config": {
"model": "auto",
"fallbackModel": "sonnet-4.6"
}
}
}
}
}
```
Setup is **idempotent** — runs on every gateway start and never duplicates existing configuration.
## CLI Commands
| Command | Description |
| ----------------------------------------- | ----------------------------------------------------------- |
| `openclaw cursor-brain setup` | Re-run configuration (writes mcp.json + CLI backend) |
| `openclaw cursor-brain doctor` | Health check all components |
| `openclaw cursor-brain status` | Show current configuration details |
| `openclaw cursor-brain upgrade <source>` | One-command upgrade (cleanup → uninstall → install) |
| `openclaw cursor-brain uninstall` | One-command full uninstall (cleanup configs + remove files) |
### Upgrade
```bash
openclaw cursor-brain upgrade ./openclaw-cursor-brain-2.0.0.tgz
openclaw gateway restart
```
### Uninstall
```bash
openclaw cursor-brain uninstall
openclaw gateway restart
```
This performs a complete teardown:
1. Removes the plugin config entry (`openclaw plugins uninstall`, auto-confirmed)
2. Deletes the plugin directory `~/.openclaw/extensions/openclaw-cursor-brain`
3. Cleans up all custom configuration (see table below)
4. Prompts you to restart the gateway
| Location | What's removed |
| --------------------------------------------- | ----------------------------------- |
| `~/.cursor/mcp.json` | `openclaw-gateway` MCP server entry |
| `openclaw.json` `agents.defaults.cliBackends` | `cursor-cli` backend config |
| `openclaw.json` `agents.defaults.model` | `cursor-cli/*` model references |
| `openclaw.json` `plugins.entries` | `openclaw-cursor-brain` registration |
> **Warning:** Do not run `openclaw plugins uninstall openclaw-cursor-brain` directly — it only removes the config entry, not the custom configuration above. If you did this by mistake, manually edit `~/.cursor/mcp.json` and `~/.openclaw/openclaw.json` to remove the leftover entries.
## Auto-configured Files
### ~/.cursor/mcp.json
```json
{
"mcpServers": {
"openclaw-gateway": {
"command": "node",
"args": ["<plugin-install-path>/mcp-server/server.mjs"],
"env": {
"OPENCLAW_GATEWAY_URL": "http://127.0.0.1:<port>",
"OPENCLAW_GATEWAY_TOKEN": "<token>",
"OPENCLAW_CONFIG_PATH": "~/.openclaw/openclaw.json"
}
}
}
}
```
### openclaw.json agents.defaults
```json
{
"model": {
"primary": "cursor-cli/auto",
"fallbacks": ["cursor-cli/sonnet-4.6"]
},
"cliBackends": {
"cursor-cli": {
"command": "/bin/bash",
"args": [
"-c",
"export SHELL=/bin/bash && cd <workspace> && exec <cursorPath> \"$@\"",
"_",
"-p",
"--output-format",
"json",
"--trust",
"--approve-mcps",
"--force"
],
"output": "json",
"input": "arg",
"modelArg": "--model",
"sessionArg": "--resume",
"sessionMode": "existing"
}
}
}
```
## Cross-platform Support
| Platform | Cursor CLI detection | Shell | mcp.json location |
| -------- | ------------------------------------------------------------------------- | ----------- | -------------------------------- |
| macOS | `~/.local/bin/agent`, `/usr/local/bin/agent`, `~/.cursor/bin/agent` | `/bin/bash` | `~/.cursor/mcp.json` |
| Linux | Same as macOS | `/bin/bash` | `~/.cursor/mcp.json` |
| Windows | `%LOCALAPPDATA%\Programs\cursor\...\agent.exe`, `~\.cursor\bin\agent.exe` | `cmd.exe` | `%USERPROFILE%\.cursor\mcp.json` |
## MCP Server Tools
The MCP Server auto-discovers and registers all OpenClaw plugin tools at startup. Two built-in tools are always available:
| Tool | Description |
| ------------------- | ----------------------------------------------------- |
| `openclaw_invoke` | Universal invoker — call any Gateway tool by name |
| `openclaw_discover` | Discovery — list all available tools with live status |
### Tool Discovery Mechanism
No regex, no log parsing — fully structured:
1. Parse `openclaw.json` to get installed plugin paths
2. Scan each plugin's `src/*.ts` for `name: "tool_name"` declarations
3. Verify each candidate via Gateway REST API probe
4. Register only verified tools with generic MCP schemas
## Troubleshooting
**`doctor` reports "Cursor Agent CLI not found"**
- Ensure Cursor is installed and has been launched at least once (to generate the `agent` binary)
- Or set the path explicitly: `config.cursorPath = "/path/to/agent"`
**Tool calls return "Gateway error"**
- Confirm the gateway is running: `openclaw gateway status`
- Check that tokens match between `~/.cursor/mcp.json` and `openclaw.json`
**Newly installed plugin tools don't appear**
- Restart the gateway to trigger tool registration
- Call `openclaw_discover` to check live tool availability
- Use `openclaw_invoke` to call any tool directly by name
## Project Structure
```
curs
... (truncated)
tools
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