Miguel Angel Simon Sierra
4b03866c02
Three filters keep the escalated contrast gate honest, each surfaced by running check across the registry examples: - data-layout-ignore (the layout audit's existing decorative opt-out) now also excludes set-dressing text from the contrast audit — one vocabulary for 'not copy a viewer must read'. - Text that has (nearly) left the canvas is skipped: sampling a clamped off-canvas box reads border pixels and produced the classic false white-on-white (a cursor exiting the frame). - Contrast failures follow the same persistence rule as layout findings: observed at a single sample of a multi-sample sweep demotes to warning; held failures gate. Example fixes the sweep exposed: motion-blur's 21 deliberately-dim rail labels are marked decorative (its vivid labels pass on their own); nyt-graph's subtitle and source-note adopt the gate's suggested compliant gray; decision-tree's declared duration drops 15s to 10s — its content ends at ~9.5s and every render shipped a blank white tail.
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