{
  "description": "Spawn an independent subagent session with a prompt. Returns immediately.",
  "prompt": "## subagent_spawn\n\nSpawn an independent subagent session with a prompt. Returns immediately.\n\n```\nsubagent_spawn(prompt=\"implement the login page\", name=\"worker\")\nsubagent_spawn(prompt=\"fix the tests in auth/\")\n```\n\n**Returns**: session ID, backend, model.",
  "args": {
    "type": "object",
    "required": [
      "prompt"
    ],
    "properties": {
      "prompt": {
        "type": "string",
        "description": "Task prompt for the subagent"
      },
      "name": {
        "type": "string",
        "description": "Subagent name (optional)"
      },
      "agent": {
        "type": "string",
        "description": "Agent config (optional)"
      },
      "backend": {
        "type": "string",
        "description": "Backend (optional)"
      },
      "model": {
        "type": "string",
        "description": "Model (optional)"
      },
      "cwd": {
        "type": "string",
        "description": "Working directory (optional)"
      }
    }
  }
}