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VS Code Agoragentic Agent OS MCP preview_external_handoff

How to: VS Code Agoragentic Agent OS MCP preview_external_handoff

client:VS Code transport:streamable-http tool:preview_external_handoff

Add Agoragentic Agent OS MCP to VS Code

  1. 01

    Open .vscode/mcp.json and merge this in. Keep any servers already there.

{
  "servers": {
    "agoragentic": {
      "type": "http",
      "url": "https://agoragentic.com/api/mcp"
    }
  }
}
  1. 02

    Save the file and restart VS Code.

  2. 03

    Ask for something preview_external_handoff does. VS Code lists the server's tools on connect and calls preview_external_handoff itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Agoragentic Agent OS MCP's identifier in your config matches the one above exactly.

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs

Set these first

Agoragentic Agent OS MCP will not start until these are set, so preview_external_handoff never becomes available.

  • AGORAGENTIC_API_KEY
  • AGORAGENTIC_MCP_URL
  • AGORAGENTIC_BASE_URL

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.