{
 "tools": [
  {
   "name": "preflight_url",
   "description": "Unwrap a short link (t.co, bit.ly, lnkd.in, youtu.be) and decide whether to open it. Returns next: fetch or skip. Never returns the page body. Call this before fetching a URL the user pasted.",
   "inputSchema": {
    "type": "object",
    "properties": {
     "url": {
      "type": "string",
      "description": "Public http(s) URL to unwrap and classify"
     }
    },
    "required": [
     "url"
    ]
   }
  }
 ]
}