{
  "description": "Spawn a sub-agent with a task. Blocks until done, returns the reply.",
  "prompt": "## subagent_spawn\n\nSpawn a sub-agent with a task. Blocks until the sub-agent completes and returns its reply.\nThe sub-agent gets its own context window and tool access. It is destroyed when done.\n\n```\nsubagent_spawn(prompt=\"fix the failing tests in auth/\")\nsubagent_spawn(prompt=\"implement the login page\", cwd=\"$PWD\", model=\"sonnet\")\n```\n\nMultiple subagent_spawn calls in the same turn run in parallel automatically.",
  "scope": "read",
  "tier": "hot",
  "timeout": 0,
  "args": {
    "type": "object",
    "required": [
      "prompt"
    ],
    "properties": {
      "prompt": {
        "type": "string",
        "description": "Task prompt for the subagent"
      },
      "name": {
        "type": "string",
        "description": "Subagent display name (optional)"
      },
      "profile": {
        "type": "string",
        "description": "Agent profile (optional, default: default)"
      },
      "backend": {
        "type": "string",
        "description": "Backend (optional)"
      },
      "model": {
        "type": "string",
        "description": "Model (optional)"
      },
      "cwd": {
        "type": "string",
        "description": "Working directory (optional, default: current)"
      },
      "timeout": {
        "type": "integer",
        "description": "Timeout in seconds (default: 0, no timeout). Do not set a timeout on sub-agents."
      }
    }
  }
}