---name: yyl-remotion-videodescription: Build 16:9 spoken-video compositions as standalone Remotion projects with React, TypeScript, frame-based animation, estimated durations, and direct mp4 rendering. Use when the user wants video files, Remotion, mp4 export, frame-accurate motion, post-production voiceover, or theme-driven video templates; do not use for click-driven web presentations.---

YYL Remotion Video

Turn an article, script, notes, or clear outline into a Remotion video project. This skill is video-first: no click-driven web player, no web presentation/, no TTS synthesis inside this workflow.

Core Output

my-video/
├── article.md
├── script.md
├── outline.md
├── notes.md
└── remotion/
    ├── src/Root.tsx
    ├── src/Composition.tsx
    ├── src/chapters/<NN>-<id>/
    │   ├── <Chapter>.tsx
    │   ├── narrations.ts
    │   └── timing.ts
    ├── public/assets/
    ├── preview-stills/
    └── out/

Bundled skill resources:

themes/       # color / typography systems
templates/    # copyable Remotion TSX starting points
references/   # craft, theme, and template guidance

Execution Strength

Decide before writing files:

Strength	Use When	Behavior
Quick	<= 450 Chinese chars, <= 60s, theme test, draft demo	1 chapter, few beats, direct implementation
Standard	1-4 min, normal publishable explainer	script + outline, first chapter anchor, then continue
Strict	> 4 min, brand/commercial/high-risk content	fuller planning, more still checks, slower chapter review

Report in one line:

I will use <Quick/Standard/Strict> because <length / risk / target>.

Workflow

1. Input Gate

   • Proceed only if the user gives source text, a script, notes, or a clear outline.
   • If they only give a topic, ask for material. Do not invent a full video.

2. Content Files

   • Save source material to article.md when provided.
   • Save final spoken text to script.md.
   • Save development plan to outline.md.
   • outline.md plans chapters, beats, screen content, information pool, assets.
   • outline.md does not prescribe exact animation implementation.

3. Theme Choice

   • Use only themes bundled in this skill: themes/command-film, themes/studio-white, themes/research-desk.
   • Do not reuse or import themes from web-video-presentation.

4. Template Choice

   • If the user asks for a known layout or animation mechanism, read references/TEMPLATES.md.
   • Use templates/luxury-perspective-gallery for luxury dark portfolio, 3D perspective horizontal carousel, or premium agency gallery requests.

5. Remotion Project

   • Reuse existing remotion/ if present.
   • Create only if missing:

     npx create-video@latest --yes --blank --no-tailwind remotion
     

   • If a selected template requires Tailwind, create the project with Tailwind support or add Tailwind before copying template files.
   • Install dependencies only if remotion/node_modules is missing or Remotion commands fail because dependencies are absent.

6. Timing

   • Do not synthesize audio.
   • Estimate durations from narration and visual complexity.
   • Default fps = 30, width = 1920, height = 1080.
   • Store text in narrations.ts; store estimated durationFrames in timing.ts.

7. Implementation

   • Read references/REMOTION-CRAFT.md before each chapter.
   • Animate with useCurrentFrame(), interpolate(), Easing, and Sequence.
   • Do not use CSS transition / CSS animation / GSAP for primary animation.
   • Tailwind may style static layout, but Tailwind animation utilities are not allowed.

8. Verification

   • Run:

     cd remotion
     npm run lint
     

   • Render at least one still per chapter, or 2-4 stills for a short full video:

     npx remotion still <composition-id> --frame=<frame> --scale=0.5 --output=preview-stills/<name>.png
     

   • Render mp4 when the stills look correct:

     npx remotion render <composition-id> out/<name>.mp4
     

9. Notes

   • Update notes.md with fps, resolution, total frames, estimated duration, checked stills, rendered mp4 path, and that audio/subtitles are post-production.

Theme Selection

Theme	Best For	Feel
command-film	agents, terminal, automation, developer tools	dark cinematic command room
studio-white	SaaS demos, launches, courses, product tutorials	clean white product studio
research-desk	essays, reports, papers, business analysis	calm analytical desk

For full theme notes, read references/THEMES.md.

Template Selection

Template	Best For	Feel
luxury-perspective-gallery	premium portfolio, product showcase, 3D horizontal carousel	dark cyber-minimal agency slider
charity-doodle-poster	nonprofit posters, hand-drawn animal heroes, line-boil editorial web effects	retro ink-brush stop-motion poster

For full template notes, read references/TEMPLATES.md.

Remotion Rules

• Use Composition in Root.tsx.
• Use Sequence to place beats on the timeline.
• Use useCurrentFrame() + interpolate() for motion.
• Place static assets in remotion/public/assets/; reference with staticFile().
• Still checks are required before final render.
• The final mp4 is silent unless the user later supplies audio in post-production.