{
  "schema": "https://agent-atoms.com/schemas/atom-v1.json",
  "type": "tool-definition",
  "id": "http-fetch",
  "version": "1.0.0",
  "name": "http-fetch",
  "description": "HTTP GET. Returns body and status.",
  "tool_spec": {
    "function_name": "http_fetch",
    "summary": "Perform an HTTP GET.",
    "parameters": {
      "url": { "type": "string", "description": "URL to fetch", "required": true },
      "headers": { "type": "object", "description": "Optional request headers", "required": false }
    },
    "returns": { "type": "object", "description": "{status, headers, body}." },
    "side_effects": ["network"]
  }
}