v0.0.79

Feature Release

dev3000 Release Notes

2025-10-06

Key Highlights

  • Passive screencast capture automatically records page loads and navigations without slowing down your dev server
  • CLS detection video viewer shows frame-by-frame video of layout shifts with red bounding boxes highlighting exactly which elements shifted
  • Real PerformanceObserver integration uses browser APIs to detect actual layout shifts (not just pixel-diff guessing), with querySelector to find precise element positions
  • New fix_my_jank MCP tool automatically analyzes performance issues and CLS problems, flagging critical UI shifts in NAV/HEADER elements
  • Better header and status line rendering for narrow terminal windows
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