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
Source commit df8298140d434a6363de0c265eb6af2e571d97a5
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- Last checked
- Nov 11, 2026
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- 1,314
- Repository last updated
- Nov 6, 2026
- License
- MIT
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SKILL.mdcore · 8,827 bytesSKILL.mdcore · 8,827 bytesscripts/beat_snap.pyruns · 5,567 bytesscripts/compose.pyruns · 6,908 bytesscripts/config.example.jsonasset · 4,369 bytesscripts/hyperframes/_shared.cssasset · 6,889 bytesscripts/hyperframes/_shared.jsruns · 7,931 bytesscripts/hyperframes/beat-hook.htmlasset · 3,312 bytesscripts/hyperframes/beat-myth-fact.htmlasset · 4,169 bytesscripts/hyperframes/beat-proof.htmlasset · 2,979 bytesscripts/hyperframes/beat-punch.htmlasset · 1,246 bytesscripts/hyperframes/beat-turn.htmlasset · 1,963 bytesscripts/make_captions.pyruns · 4,712 bytesscripts/media_proxy.pyruns · 58,192 bytesscripts/render_beats.pyruns · 7,421 bytesskill.meta.jsonasset · 229 bytestests/smoke-test.mddoc · 5,667 bytes
Read excerpt
# 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.