JamesandClaude Opus 4.7
211a9214d0
Distribution PR for the variables feature stack: tells agents how to declare, read, and override variables across the four authoring surfaces. skills/hyperframes/SKILL.md: - Added data-variable-values + data-composition-variables to the data-attributes tables (host element + <html> root respectively). - New "Variables (Parametrized Compositions)" section right after "Composition Structure". Three-step pattern (declare / read / override), full worked example with enum variable, sub-comp per-instance pattern with two hosts sharing a source, and rules of thumb (always provide defaults; read once, not in frame loops; use --strict-variables in CI; type validation behavior). skills/hyperframes-cli/SKILL.md: - Added --variables, --variables-file, --strict-variables to the render flag table. - Short paragraph below the table explaining the parametrized-render pattern with a forward reference to the hyperframes skill. docs/packages/core.mdx: - Added a code snippet showing getVariables<T>() inside a composition and validateVariables/formatVariableValidationIssue for tooling. packages/cli/src/docs/compositions.md (the in-CLI `npx hyperframes docs compositions` content): - Replaced the hand-rolled JSON.parse(host.dataset.variableValues) pattern with the modern getVariables() pattern. This is PR 4 of the 4-PR stack. The openai/plugins mirror is a separate follow-up. Co-Authored-By: Claude Opus 4.7 (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