## Summary Two independent initiatives that improve agent DX and expand HyperFrames' reach. ### Initiative 1: Fix the Clip Animation Footgun - `gsap_animates_clip_element` lint rule now uses smart detection — only errors when GSAP animates `visibility` or `display` on a clip element - All other properties (opacity, transform, x, y, scale, etc.) are allowed silently - This was the #1 agent failure in QA (10/10 agents hit it on v0.2.1) ### Initiative 2: `<hyperframes-player>` Web Component - New `@hyperframes/player` package — zero dependencies, 3.3KB gzipped - Iframe-based web component with Shadow DOM for perfect isolation - Video-like API: `play()`, `pause()`, `seek()`, `currentTime`, `duration`, events - Controls overlay with play/pause, scrubber (mouse + touch), time display, auto-hide - Full docs page at `docs/packages/player.mdx` ## Before / After ### Clip animation lint **Before (10/10 agents hit this):** ``` ✗ gsap_animates_clip_element: GSAP animation targets a clip element. Selector "#title" resolves to element <div id="title" class="clip">. The framework manages clip visibility — animate an inner wrapper instead. Fix: Wrap content in a child <div> and target that with GSAP. ``` **After (only errors on actual conflicts):** ``` # This passes lint — no error: tl.from("#title", { opacity: 0, y: -50, scale: 0.8 }, 0); # This still errors — actual conflict with runtime: tl.to("#title", { visibility: "hidden" }, 3); ✗ gsap_animates_clip_element: GSAP animation sets visibility on a clip element. Fix: Remove the visibility/display tween. Use opacity for fade effects. ``` ### Embeddable player **Before:** No way to embed a composition in a web page. **After:** ```html <script src="https://cdn.jsdelivr.net/npm/@hyperframes/player"></script> <hyperframes-player src="./composition/index.html" controls></hyperframes-player> ``` ```js const player = document.querySelector('hyperframes-player'); player.play(); player.pause(); player.seek(2.5); player.addEventListener('ready', (e) => console.log('Duration:', e.detail.duration)); ``` ## Test plan - [x] 427 core tests pass (20 GSAP lint tests with smart detection) - [x] 7 player tests pass (formatTime + element registration) - [x] TypeScript compiles cleanly (core + player) - [x] Lint: GSAP animating clip with safe props → 0 errors - [x] Lint: GSAP animating clip with `visibility` → 1 error (correct) - [x] Player builds to 3.3KB gzipped ESM - [x] Lockfile updated for CI - [x] Docs page added at `docs/packages/player.mdx`
hyperframes
CLI for creating, previewing, and rendering HTML video compositions.
Install
npm install -g hyperframes
Or use directly with npx:
npx hyperframes <command>
Requirements: Node.js >= 22, FFmpeg
Commands
init
Scaffold a new Hyperframes project from a template:
npx hyperframes init my-video
cd my-video
preview
Start the live preview studio in your browser:
npx hyperframes preview
# Studio running at http://localhost:3002
npx hyperframes preview --port 4567
render
Render a composition to MP4:
npx hyperframes render ./my-composition.html -o output.mp4
lint
Validate your Hyperframes HTML:
npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose # Include info-level findings
By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.
compositions
List compositions found in the current project:
npx hyperframes compositions
benchmark
Run rendering benchmarks:
npx hyperframes benchmark ./my-composition.html
doctor
Check your environment for required dependencies (Chrome, FFmpeg, Node.js):
npx hyperframes doctor
browser
Manage the bundled Chrome/Chromium installation:
npx hyperframes browser
info
Print version and environment info:
npx hyperframes info
docs
Open the documentation in your browser:
npx hyperframes docs
upgrade
Check for updates and show upgrade instructions:
npx hyperframes upgrade
npx hyperframes upgrade --check --json # machine-readable for agents
Documentation
Full documentation: hyperframes.heygen.com/packages/cli
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI