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Vance IngallsandClaude Opus 5
5a22474357
The studio writes these attributes through `HF_AUDIO_FX_ATTR` and `HF_AUDIO_AUTOMATION_ATTR` but reads them out of `dataAttributes`, which is keyed without the `data-` prefix — so the read side carried its own `"fx-chain"` and `"automation"` literals in four places. The two spellings had no link, so a rename could only half-land: the writes would move and the panel would go on reading an attribute nothing writes any more. Both keys are now derived from their attribute (`HF_AUDIO_FX_DATA_KEY`, `HF_AUDIO_AUTOMATION_DATA_KEY`) and the four read sites use them. Falsified two ways. Repointing the derived key breaks 24 existing panel and summary tests, which is what proves the reads actually go through it. And the new one-line pairing assertion in each module fails the moment the derivation is replaced by a literal again — which is the regression it exists for, since a hardcoded key that happens to be right today passes every other test in the suite. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
@hyperframes/studio
Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.
Install
npm install @hyperframes/studio
What it does
The studio is a React application with:
- Visual timeline — drag, resize, and arrange elements on tracks
- Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
- Live preview — see changes in real time as you edit
- Composition inspector — view and modify element properties
Development
The studio is embedded in the hyperframes preview command. To develop the studio UI itself:
cd packages/studio
bun run dev # Start Vite dev server
bun run build # Build for production
bun run typecheck # Type-check
Tech stack
- React 18/19, Zustand (state management)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview