Individual skill

render-myth-vs-fact

Assemble a myth-vs-fact kinetic-typography explainer video ad (≈29.5s, 9:16) from N myth/fact pairs + hook / turn / punch copy + palette + a brand end-card PNG + a VO track — a hook, 3 red-strike MYTH cards that flip to teal-check FACT cards (per-line strikethrough that crosses EVERY wrapped line), a "what actually works" turn, an optional proof reveal, a punch line, and a static end card. DETERMINISTIC assembly with ZERO AI-gen visuals — HTML hyperframes rendered frame-exact via Playwright (`window.renderAt(t)`, animation a pure function of beat-local time), Whisper beat-snap to VO word onsets, concat at a uniform fps, karaoke `.ass` captions burned last (suppressed on the proof + end-card beats), and a VO + optional music mix (music −20 dB, `amix normalize=0`, tail fade). FREE (Python + Playwright + ffmpeg); the recipe supplies the copy / palette / end-card / VO and gates the paid VO / music / Whisper calls to their own capabilities. Use for the myth-vs-fact format.

skills/video/render-myth-vs-fact/SKILL.md

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Repository last updated
Nov 6, 2026
License
MIT

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# render-myth-vs-fact

The free, deterministic renderer for the **myth-vs-fact** video ad format — the
sound-off-safe kinetic-typography explainer that busts N common myths and hands the viewer
a credible resolution. Red-strike **MYTH** cards flip to teal-check **FACT** cards over a
VO (voice + tone are the caller's choice; the demo used a calm-authority expert), then a "what actually works" **turn** + an optional **proof reveal** + a
**punch** line + a static brand **end card**.

Every on-screen word is a **deterministic HTML hyperframe** — **no AI image/video gen, no
b-roll, no character**. Visuals are **free** (no paid calls). The only metered spend is upstream (VO +
Whisper word-timestamps + an optional music bed), gated to its own capabilities. This
capability OWNS the whole FREE assembly: beat-snap → render → captions → mix → burn →
master. Iterate the cut for free; re-roll only the offending paid audio beat.
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