Miguel ÁngelandClaude Opus 4.6
7d0d903417
Three bugs found via automated e2e testing of the v0.6.0-alpha preview: 1. core: add missing package.json export specifiers for studio-api/manual-edits-render-script and studio-api/studio-motion-render-script — the alpha.3 npm publish failed because the studio build could not resolve these sub-paths. 2. cli: fix init --example creating empty projects — tsup leaves empty template directories in dist/ during the build, causing existsSync(templateDir) to return true and skip the remote fetch fallback. Now checks for index.html inside the dir instead. 3. engine: fix unhandled EPIPE crash in streaming encoder — ffmpeg stdin/stdout had no error handlers, so a write after the ffmpeg process exits throws an uncaught error that crashes the process. Verified with 8 consecutive e2e iterations (424 test runs, 0 flaky). Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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