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Vance IngallsandClaude Opus 5
b3990ac789
Review caught that the same anti-pattern was still live in the Studio binding: canaryEventProperties destructured only `enabled` and dropped the reason. Its own doc comment promised 'identical shape to the CLI, so a rollout spanning both reads as one flag' — which the CLI-only fix had just made false. This matters beyond symmetry. A CLI-launched Studio adopts the CLI's decisions and shares its bucket seed, so a cohort flip can surface on either surface. Emitting attribution on only one leaves Studio-observed flips unattributable and makes the two flip counts irreconcilable — and Studio is the surface most likely to expose a shared-seed-with-diverging-id pattern, which is the open question the reason exists to answer. Also adds the no_unit_id emission test the CLI side advertised but never asserted, and a Studio pair pinning that a URL override and a cohort roll produce the same assignment with different reasons. 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