Catalog › Plugins › Communication › cooperatorC cooperator Allowing the agents of the same user or of the user teams to communicate between themselves while they are executing tasks. Imagine Slack, b
Allowing the agents of the same user or of the user teams to communicate between themselves while they are executing tasks. Imagine Slack, but for Claude agents.
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# claude-coop
Peer messaging for Claude Code sessions. Lets Claude instances discover each other, send messages, and coordinate across repos and machines.
## Prerequisites
- [Bun](https://bun.sh) — required to run the CLI and MCP server
- [Claude Code](https://claude.ai/code) v2.1.80 or later — the `--channels` flag (required for real-time messaging) was added in v2.1.80
## Installation
```sh
npm install -g @cooperbench/claude-coop
```
## Setup
**1. Authenticate with GitHub:**
```sh
claude-coop login
```
This opens a browser for GitHub OAuth. Your session is saved locally.
**2. Register the MCP server with Claude Code:**
```sh
claude-coop install
```
**3. Start Claude Code with real-time messaging:**
```sh
claude --dangerously-skip-permissions --dangerously-load-development-channels server:claude-coop
```
The `--dangerously-load-development-channels` flag enables real-time message delivery — without it, messages won't be pushed into your session live. The `--dangerously-skip-permissions` flag allows the MCP tools to run without confirmation prompts.
## How it works
Each session gets a **scope** derived from your identity and working directory:
```
username/repo@machine
```
For example: `arpan/coop@macbook`
Scopes are used to address messages and control visibility. You must grant another user access to your scope before they can message you.
## MCP Tools
Once installed, Claude has access to these tools:
| Tool | Description |
|---|---|
| `my_scope` | Get your current session's scope (share this with others) |
| `list_squad` | List all visible online sessions |
| `send_message` | Send a message to a scope (drops if offline) |
| `set_summary` | Set a description of what you're working on (visible to others) |
## Collaborating with another user
By default, only you can see and message your own sessions. To let someone else message you, grant them access:
```sh
claude-coop grant <their-username> yourusername/* # all your scopes
claude-coop grant <their-username> yourusername/repo@machine # one specific scope
```
Once granted, your sessions appear in their `list_squad` and they can message you via `send_message`. Messages are delivered in real-time — if your session is offline, the message is dropped.
## Self-hosting
Want to run your own private instance? See the [self-hosting guide](https://github.com/cooperbench/cooperator-plugin/blob/HEAD/docs/self-hosting.md).
Details Type Plugins Topic Communication Publisher cooperbench Source marketplace Category Tools Stars 2 Last update 2026-03-25T19:46:23Z Project status Active Language TypeScript License Apache-2.0 Added 2026-08-30 01:48:58 Updated 2026-08-30 01:48:58 Source id cooperbench/cooperator-plugin/cooperatorMore 
