video-to-remotionlisted

# Recreating a video in Remotion Six steps. Two of them (**spec** and **measure**) are the ones that did not exist the first time this was done by hand, and they are where the errors were. For how to write the Remotion itself — camera rigs, panel springs, kinetic type — load the `remotion-motion-design` skill; this skill is the pipeline around it. ## 1 · Acquire `watch-skill watch "<url>"` handles 1800+ sites and gives frames, OCR and a transcript. When yt-dlp has no extractor (Threads, some embeds), fall back to driving a headless browser and reading `document.querySelectorAll('video')`. If Playwright complains its browser build is missing, do not run `playwright install` — pass `executable_path` to the `chrome-headless-shell` already under `~/Library/Caches/ms-playwright/`. ## 2 · Spec — the step that decides everything downstream ```bash python3 assets/spec.py reference.mp4 spec.json ``` Emits: resolution/fps, **blank windows**, per-half-second content class (blank / ink-on-white / device), device framing per beat, and a 6×4 median colour field of the screen region. **Read its warnings before its output.** The classifier encodes a genre — a reference with three visual regimes (empty, type on white, device with wallpaper). Run it on something else and it collapses. On a 16s flat-UI SaaS demo it found one beat across the whole video, and both `blank` and `device` never fired; it now says so loudly instead of returning a confident wrong answer. When it warns, treat th