How to connect Sourcegraph to Claude Cowork

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Introduction

Cowork is Anthropic's AI agent for knowledge work. Think of it as Claude Code for everything else. It works autonomously with your computer, local files, and applications to accomplish complex tasks.

This guide walks you through the easiest and most secure way to connect your Sourcegraph account to Cowork via Composio Connect, enabling it to show all languages used in repo backend-service, compare latest two commits in project web-ui, list all files under src/utils in repo app-core, and more such actions on your behalf without compromising your account security.

Also integrate Sourcegraph with

Connecting Sourcegraph to Claude Cowork

1. Open Customize

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

2. Add the Composio MCP server

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

3. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Cowork

4. Connect your Sourcegraph account

Back in Cowork, ask the agent to connect to Sourcegraph or give it any Sourcegraph-related task.

For example, ask Cowork to:

  • "Show all languages used in repo backend-service"
  • "Compare latest two commits in project web-ui"
  • "List all files under src/utils in repo app-core"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Cowork, and your Sourcegraph account is ready to use.

What is Claude Cowork?

Claude Cowork is Anthropic's agent for general knowledge work. It can use your computer, files, and connected applications to complete longer-running tasks across your work tools.

With Composio Connect, Cowork can securely access apps like Sourcegraph through MCP without you sharing account credentials directly with the agent.

What is the Sourcegraph MCP server, and what's possible with it?

The Sourcegraph MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Sourcegraph account. It provides structured and secure access to your codebase, so your agent can perform actions like searching repositories, inspecting commits, fetching file contents, and analyzing code languages on your behalf.

  • Repository discovery and listing: Let your agent list all repositories in your Sourcegraph instance, making it easy to navigate and select codebases for deeper analysis.
  • Commit inspection and comparison: Have the agent fetch details about specific commits or compare two commits to see file-level changes and diffs in any repository.
  • File content retrieval: Ask your agent to fetch the raw contents of any file in your codebase—no cloning or manual browsing required.
  • Repository file and language enumeration: Enable the agent to list all files, directories, and programming languages used in a given repository for a comprehensive code overview.
  • User identity and permissions checks: Let your agent verify the authenticated user or check site settings permissions before performing sensitive actions.

Supported Tools & Triggers

Tools
Check Site Settings Edit PermissionTool to check whether site settings can be edited through the api.
Compare CommitsTool to compare two commits in a repository and retrieve their file diffs.
Get Commit DetailsGet detailed information about a specific commit in a repository.
Get Current UserTool to retrieve information about the currently authenticated user.
Get File ContentsTool to fetch the contents of a specified file on the default branch.
List RepositoriesTool to list repositories on the sourcegraph instance.
List Repository FilesTool to list all files and directories in a repository path.
List repository languagesTool to list languages used in a repository.

How to build Sourcegraph MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Sourcegraph MCP?

With a standalone Sourcegraph MCP server, the agents and LLMs can only access a fixed set of Sourcegraph tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Sourcegraph and many other apps based on the task at hand, all through a single MCP endpoint.

Can I use Tool Router MCP with Claude Cowork?

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Sourcegraph tools.

Can I manage the permissions and scopes for Sourcegraph while using Tool Router?

Yes, absolutely. You can configure which Sourcegraph scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Sourcegraph data and credentials are handled as safely as possible.

Used by agents from

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