{
  "surface": "Real server Browser in web client",
  "viewport": "1280x800",
  "theme": "light",
  "observations": {
    "responsive": true,
    "positiveControl": true
  },
  "protocolCounts": {
    "responsive": {
      "probes": 3,
      "terminations": 0
    },
    "hung": {
      "probes": 1,
      "terminations": 1
    }
  },
  "screenshotStability500msApart": [
    true,
    true
  ],
  "scope": "Two responsive MCP navigations (none/load), then a hung-page positive control. Protocol method counts from real server Playwright DEBUG output; no mocks."
}