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* feat(sdk,studio): stage 7 step 3a — persistPath + SDK session reload-on-change Stage 7 Step 3a — SDK plumbing for routing Studio commits through the SDK session. No behavior change: the session stays idle (no op routed yet). SDK: - Add OpenCompositionOptions.persistPath; thread to createPersistQueue so the persist queue writes back to the composition's real path instead of the "composition.html" default (blocker A). Studio (useSdkSession): - Pass persistPath = activeCompPath so a future dispatch persists the right file. - Re-open the session when the active composition file changes on disk (HMR hf:file-change / SSE file-change), scoped to activeCompPath, so the in-memory linkedom document never goes stale under code-editor/agent/server edits (blocker C). Re-opening is additive while the session is idle; 3c must add self-write suppression once dispatch writes. Tests: SDK persistPath default + override; shouldReloadSdkSession path-match. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs(sdk): document persistPath as immutable for session lifetime Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: Miguel Ángel <miguel07alm@protonmail.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