rubber duck for VS Code

io.github.nesquikm/rubber-duck

Bridge to multiple LLMs and CLI agents: councils, debates, voting, and more

client:VS Code transport:stdio runtime:npm

Install rubber duck in VS Code

.vscode/mcp.json

{
  "inputs": [
    {
      "type": "promptString",
      "id": "openai-api-key",
      "description": "OPENAI_API_KEY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "gemini-api-key",
      "description": "GEMINI_API_KEY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "groq-api-key",
      "description": "GROQ_API_KEY",
      "password": true
    },
    {
      "type": "promptString",
      "id": "default-provider",
      "description": "DEFAULT_PROVIDER",
      "password": true
    }
  ],
  "servers": {
    "rubber-duck": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "OPENAI_API_KEY": "${input:openai-api-key}",
        "GEMINI_API_KEY": "${input:gemini-api-key}",
        "GROQ_API_KEY": "${input:groq-api-key}",
        "DEFAULT_PROVIDER": "${input:default-provider}"
      }
    }
  }
}

VS Code prompts for each input the first time the server starts, so no secret is written to the file. VS Code docs

rubber duck in other clients

rubber duck MCP server