Agent skills by @rauchg. Each folder in skills/ is self-contained: a SKILL.md with the instructions, plus the scripts and assets it needs.

npx skills add rauchg/skills

Or copy a skill folder into your agent's skills directory (for example ~/.claude/skills/ or ~/.fx/skills/).

Turns a screen recording of a UI (page load, navigation, redirect or auth flow, app startup) into an interactive paint timeline page:

• the video fills the window, with a thin timeline of every visual paint (timestamps, how long each screen was shown, phase colors, hover thumbnails, scrubbing)
• at each paint, what was painted flashes pink and what only moved slides in blue
• painted regions are snapped to whole layout elements, not pixel noise; moves are detected by template matching, and the mouse cursor is learned from the recording and ignored
• the output is a static folder (index.html plus the video), easy to open locally or deploy

The agent does the judgment parts: which frame changes are real paints, labels, phases, metrics. One script (scripts/timeline.py, run with uv) does the rest: extracting frames, contact sheets for review, the move-aware diff, check sheets, and building the page.

Requirements: ffmpeg, uv, and optionally Chrome or Chromium for headless previews.

MIT