Add tools from MCP servers into codecompanion

[JPFrancoia]

Hello, I hope you are well.

I'm trying to import the tools of the MCP servers added through MCPHub into codecompanion.

For example, I have the memory mcp server:

  "mcpServers": {
    "memory": {
      "args": [
        "run",
        "-i",
        "-v",
        "claude-memory:/app/dist",
        "--rm",
        "mcp/memory:latest"
      ],
      "command": "docker",

And based on the docs of the MCP server here, I should get tools like: create_entities, create_relations, read_graph, etc. But the tools are not available in Codecompanion, in the completion of @. Note that the tools work, if I manually type @read_graph, the tool will respond correctly. But it's not displayed anywhere, so I need to remember the name of each tool. I get all the native tools, but not the ones from the added MCPs:

This is not isolated to memory, it happens for other MCPs as well.

Am I missing something?

Best

JP

[ravitemer]

Hi @JPFrancoia ! I'm doing okay, hope you are too

I should get tools like: create_entities, create_relations, read_graph, etc. But the tools are not available in Codecompanion, in the completion of @.

We didn't have the ability to use individual tools from a MCP server till now. MCP Hub provides a single @mcp tool group to codecompanion. When we use @mcp in the chat, a system prompt with all the running servers and their schemas (press gd in the Hub view to see how the system prompt looks like) is added to chat history. Two individual tools will be added under the hood use_mcp_tool and access_mcp_resource. LLM sees what MCP servers are running from the system prompt and uses one of these tools to call a tool or resource on a MCP server. This has been the behaviour of @mcp tool.

However, #169 Draft PR changes that and achieves exactly what you are looking for. Currently there's a bug at codecompanion in order for that to work. A PR has been opened and hopefully soon we can merge the PR. With that update you can add a particular MCP server or a tool from a server etc to the chat giving more control. For e.g:

Note that the tools work, if I manually type @read_graph, the tool will respond correctly. But it's not displayed anywhere, so I need to remember the name of each tool. I get all the native tools, but not the ones from the added MCPs

For the reason above mentioned, I wonder how the @read_graph is working at all!!!😯

[JPFrancoia]

Thanks for the explanation! I'll be watching this carefully, and I'll be happy to test your draft MR when codecompanion fixes the bug.

Thanks for the help!

[ravitemer]

@JPFrancoia This is now live. Please refer to #202 . Thanks!