{
  "slug": "probe.alive",
  "title": "Alive (completed a real handshake)",
  "grade": "observed",
  "unit": "count",
  "value": 6040,
  "as_of": "2026-08-14",
  "sql": "SELECT COUNT(*) FROM probes WHERE run_id=(SELECT id FROM runs WHERE kind='census' ORDER BY started_at DESC LIMIT 1) AND outcome IN ('ok','ok_tools')",
  "note": "Servers that answered a real MCP initialize, latest census.",
  "history": [
    {
      "period": "2026-08-13",
      "value": 5947.0
    },
    {
      "period": "2026-08-14",
      "value": 5947.0
    },
    {
      "period": "2026-08-15",
      "value": 6040.0
    }
  ]
}