Layout findings now distinguish held defects from entrance/exit transients: a dynamic issue seen at a single grid sample demotes to info, while content_overlap held across two-plus samples (or 500ms+) promotes to error, resolving the long-standing re-promotion TODO. Static compositions keep their severity. check gains a sweep_static error when a 3s+ composition shows zero geometry change across every sample (a frozen timeline makes every green verdict unreliable); skipped when the motion sidecar already reported motion_frozen. text_occluded findings carry a coveredFraction; atomic labels (short, no whitespace) flag on any cover while prose needs 15%, since partial cover changes what a short label reads as. Deprecation-test scaffolding consolidates into deprecationTestHarness; tier logic and logger tests restructured under the complexity gate without suppression markers. Detection mechanics adapted from Adam Rosler's open-sourced visual-linter design (github.com/Adam-Rosler/hyperframes-visual-linter-design); the elementFromPoint paint model, opt-out attributes, and single-audit architecture are unchanged.
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. Run from the project directory; the positional
argument is the project directory (not a file), so render the project's
index.html directly, or point at a specific composition file with -c:
npx hyperframes render -o output.mp4
npx hyperframes render -c ./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