{
  "schema": "https://agent-atoms.com/schemas/atom-v1.json",
  "type": "tool-definition",
  "id": "schedule-task",
  "version": "1.0.0",
  "name": "schedule-task",
  "description": "Register a cron / timer task. Side-effecting (creates persistent schedule).",
  "tool_spec": {
    "function_name": "schedule_task",
    "summary": "Register a recurring task.",
    "parameters": {
      "cron": { "type": "string", "description": "Cron expression", "required": true },
      "name": { "type": "string", "description": "Task name", "required": true },
      "payload": { "type": "object", "description": "Task definition", "required": true }
    },
    "returns": { "type": "object", "description": "{task_id, next_run}." },
    "side_effects": ["network"]
  }
}