{
  "head": "366ec74cf818a8b0ccd032d115e2f6d353f61245",
  "surface": "real web dev app",
  "viewport": [
    1280,
    800
  ],
  "chatWidth": "Wide (72rem)",
  "actions": [
    "hover minimap x276,y426: preview visible, strip width40",
    "double-click x328,y434: selection Selectable, anchor P in assistant message",
    "Intentional first-strip click x276,y391: scrollTop5588 to36 after navigation settled; Previous turn disabled=true, Next turn disabled=false; railWidth40"
  ],
  "screenshot": "/home/ubuntu/.t3/userdata/browser-artifacts/browser-screenshot-localhost-mvj7elfd-cdb12b34.png",
  "viewportKind": "CSS pixels measured by preview_status; separate supplemental lead check, not the matched1440x900 evidence set"
}