Vance Ingalls
1324de54a8
## Summary - Binds the Studio preview server (`packages/cli`) to `127.0.0.1` instead of `0.0.0.0` so it is only reachable from localhost. - Adds a `--host` flag for callers that genuinely need to expose the server on a wider interface (e.g. Docker, remote dev boxes). ## Security **F-001 HIGH** — Studio preview server was binding on all interfaces, making it reachable from any network the developer's machine was on (including shared Wi-Fi, corp LAN). Because the server serves the project filesystem under no auth, any peer on the same network could read arbitrary project files. Restricting to loopback closes this exposure for the default case. ## Test plan - [x] `hyperframes preview` starts — server reachable on `localhost:<port>`, not on LAN IP - [x] `hyperframes preview --host 0.0.0.0` still binds on all interfaces for Docker / remote-dev use cases - [x] Existing unit tests pass
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