{
  "id": "001",
  "slug": "agent-trail",
  "title": "Agent trail",
  "status": "running",
  "startedOn": "2026-09-16",
  "protocol": {
    "registeredOn": "2026-09-17",
    "measureFrom": "2026-09-18",
    "windowDays": 7,
    "paths": [
      "/observatory/trail/",
      "/observatory/trail/second/",
      "/observatory/trail/finish/"
    ],
    "metric": "Successful exact-path requests at each trail stage, reported separately by verified AI category and response status.",
    "confounders": "Independent crawls, caching and missing client identity prevent attribution of a three-stage sequence to one agent."
  },
  "hypothesis": "A machine client given a link to a read-only trail may request its successive pages.",
  "setup": "Three ordinary HTML pages link from start to second to finish. Each page has a distinct checkpoint marker. No login, posting, payment or outbound action is required.",
  "observation": null,
  "limitations": "Request counts for individual pages cannot prove that one agent traversed the sequence, establish identity or autonomy, or show why any page was requested.",
  "evidence": [
    {
      "label": "Start the live trail",
      "url": "/observatory/trail/"
    }
  ]
}