feat(skills): scaffold remotion-to-hyperframes skill (1/7)

README.md

@@ -184,13 +184,14 @@ HyperFrames ships [skills](https://github.com/vercel-labs/skills) that teach AI
 npx skills add heygen-com/hyperframes
 ```
 
-| Skill                    | What it teaches                                                                              |
-| ------------------------ | -------------------------------------------------------------------------------------------- |
-| `hyperframes`            | HTML composition authoring, captions, TTS, audio-reactive animation, transitions             |
-| `hyperframes-cli`        | CLI commands: init, lint, preview, render, transcribe, tts, doctor                           |
-| `hyperframes-registry`   | Block and component installation via `hyperframes add`                                       |
-| `website-to-hyperframes` | Capture a URL and turn it into a video — full website-to-video pipeline                      |
-| `gsap`                   | GSAP animation API, timelines, easing, ScrollTrigger, plugins, React/Vue/Svelte, performance |
+| Skill                     | What it teaches                                                                              |
+| ------------------------- | -------------------------------------------------------------------------------------------- |
+| `hyperframes`             | HTML composition authoring, captions, TTS, audio-reactive animation, transitions             |
+| `hyperframes-cli`         | CLI commands: init, lint, preview, render, transcribe, tts, doctor                           |
+| `hyperframes-registry`    | Block and component installation via `hyperframes add`                                       |
+| `website-to-hyperframes`  | Capture a URL and turn it into a video — full website-to-video pipeline                      |
+| `remotion-to-hyperframes` | Translate a Remotion (React) composition into a HyperFrames HTML composition                 |
+| `gsap`                    | GSAP animation API, timelines, easing, ScrollTrigger, plugins, React/Vue/Svelte, performance |
 
 ## Contributing
 

skills/remotion-to-hyperframes/SKILL.md

@@ -0,0 +1,32 @@
+---
+name: remotion-to-hyperframes
+description: Translate a Remotion (React-based) video composition into a HyperFrames HTML composition. Use when (1) the user provides Remotion source (`.tsx` files using `useCurrentFrame`, `Sequence`, `AbsoluteFill`, `interpolate`, `spring`, `staticFile`, etc.) and asks to port, convert, or migrate it to HyperFrames; (2) the user pastes a Remotion entry point (`Root.tsx`, `Composition`) and wants HTML; (3) the user links a Remotion repo and asks for the HyperFrames equivalent; (4) the user says "port my Remotion project", "translate this Remotion code", "rewrite as HTML", or "I have a Remotion comp, make it HyperFrames". Skill detects unsupported patterns (useState, useEffect with side effects, async calculateMetadata, third-party React component libraries, `@remotion/lambda` features) and recommends the runtime interop escape hatch instead of attempting a lossy translation.
+---
+
+# Remotion to HyperFrames
+
+## Overview
+
+Translate Remotion (React-based) video compositions into HyperFrames (HTML + GSAP) compositions. Most Remotion idioms have direct HyperFrames equivalents — the translation is mechanical for ~80% of typical compositions. This skill encodes the mapping and guards against the lossy 20%.
+
+## Workflow
+
+1. **Lint the source.** Run the source-lint script against the Remotion project to surface any patterns that can't translate cleanly (React state hooks, async metadata, third-party React components). If the source uses any blocker pattern, recommend the runtime interop escape hatch (PR #214 pattern) instead of attempting a translation.
+
+2. **Scaffold the translation.** Generate a HyperFrames HTML skeleton from the Remotion source — `Composition` props become `data-*` attributes on the root `#stage` div, `<Sequence>` wrappers become elements with `data-start` / `data-duration` / `data-track-index`, `<AbsoluteFill>` becomes `<div style="position:absolute;inset:0">`. Leave timing-sensitive and easing-sensitive sections marked for refinement.
+
+3. **Refine timing and easing.** Convert each `useCurrentFrame`-driven `interpolate` / `spring` call into an equivalent paused GSAP tween on the composition timeline. This is the part where translation correctness matters most — easing curves and stagger timing are what readers notice.
+
+4. **Validate by frame-diff.** Render both the original Remotion composition and the translated HyperFrames composition, then compute per-frame SSIM. Threshold-based pass/fail tells the user which scenes are visually correct and which need another pass.
+
+5. **Document the gaps.** Any Remotion features that didn't translate (custom React subcomponents requiring manual rewrite, library transitions without a HyperFrames equivalent, etc.) get listed in a `TRANSLATION_NOTES.md` next to the output so the user can finish them or decide to use the runtime interop instead.
+
+## What this skill explicitly does NOT do
+
+- **Translate React state machines.** Remotion compositions that drive animation via `useState` + `useEffect` are not deterministic frame-capture targets in HyperFrames' model; recommend the runtime interop escape hatch.
+- **Translate `@remotion/lambda` configuration.** HyperFrames is single-machine today; Lambda-specific code drops with a note.
+- **Run Remotion's render pipeline alongside HyperFrames.** That's the runtime interop pattern from [PR #214](https://github.com/heygen-com/hyperframes/pull/214) — a separate problem with a separate (and existing) solution.
+
+## Status
+
+Skill scaffold landed; eval harness, test corpus, and translation references are added in subsequent PRs in the stack. Until then, this skill should bow out and recommend the user hand-translate or use the runtime interop pattern.