Neotoma

Neotoma with VS Code

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Neotoma with VS Code

VS Code supports MCP servers in GitHub Copilot Chat's Agent Mode (VS Code 1.99+). MCP server configuration lives in .vscode/mcp.json at the workspace root, which Neotoma's project-level scanner detects and writes automatically.

Requirements

  • VS Code 1.99 or later
  • GitHub Copilot Chat extension with a Copilot subscription
  • Copilot Chat in Agent Mode (the default for @workspace interactions)

Install Neotoma

npm install -g neotoma
neotoma init
neotoma auth login

Auto-configure with neotoma setup

From your project directory:

neotoma setup --tool vscode --yes

This creates or updates .vscode/mcp.json with the Neotoma MCP server entry. VS Code picks up the change on file save without a restart.

Manual configuration

Create .vscode/mcp.json in your workspace root:

{
  "servers": {
    "neotoma": {
      "type": "stdio",
      "command": "neotoma",
      "args": ["mcp", "stdio"]
    }
  }
}

Use the absolute path to neotoma if the binary is not on PATH from VS Code's terminal environment (which neotoma to find it).

Remote access

To connect VS Code to a remote or tunneled Neotoma instance:

neotoma api start --env prod --tunnel

Add the SSE transport entry to .vscode/mcp.json:

{
  "servers": {
    "neotoma": {
      "type": "sse",
      "url": "https://<tunnel-host>/mcp",
      "headers": {
        "Authorization": "Bearer ${input:neotomaToken}"
      }
    }
  }
}

${input:neotomaToken} prompts VS Code for the token on first use and stores it in the VS Code secrets store.

See tunnel for the full tunnel setup guide.

Using Neotoma tools in Copilot Chat

MCP tools registered in .vscode/mcp.json are available in Copilot Chat Agent Mode only:

  1. Open Copilot Chat (Ctrl+Shift+I / Cmd+Shift+I)
  2. Switch to Agent Mode (sparkle icon or the model selector)
  3. Click the tools icon — Neotoma tools (store, retrieve_entities, etc.) appear in the list
  4. Type #neotoma to insert a tool call directly

Verify the connection

Ask Copilot Chat in Agent Mode to call retrieve_entities with entity type task. A response with an empty array (not an error) confirms the connection is working.

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