James RussoandClaude Fable 5
30fcede44e
Follow-up to #1328. That PR loosened the Cursor TERM_PROGRAM check from exact `=== "cursor"` to `?.toLowerCase() === "cursor"` "for parity with Windsurf" — but the parity is false. Windsurf is matched case-insensitively because its sources genuinely disagree on casing ("windsurf" vs "Windsurf"); Cursor consistently emits lowercase "cursor", so nothing justified loosening an existing, working, exact-match rule. Per review feedback on #1328 (Magi/Hermes), revert Cursor to exact match and drop the TERM_PROGRAM=Cursor test. Windsurf stays case-insensitive (sourced); its comment now documents the asymmetry as intentional. No functional change — Cursor always emitted lowercase, so detection is unchanged; this just removes an unsourced false-positive surface. Co-authored-by: Claude Fable 5 <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