* fix(cli): report unknown-flag errors + cover nested subcommands (HF#2033) Two flag-hygiene gaps behind the assertKnownFlags arc: 1. Telemetry loss: assertKnownFlags ran BEFORE the try/catch in the command wrapper, so an unknown-flag throw skipped reportCommandFailure entirely — zero signal on how often users hit bad flags. Moved the assertion inside the try so it reports like any other failure. 2. Nested-subcommand scope: cli.ts wraps only the top-level command loaders, so command groups' leaves (cloud/*, auth/*, figma/*, lambda/*, capture/*, skills) were never wrapped — citty dispatches to the leaf, whose run had no assertion and no failure reporting. So `hyperframes cloud render --badflag` silently ignored the flag. trackCommandFailures now recurses through cmd.subCommands (normalizing citty's Resolvable entries to loaders) and wraps every leaf. Identity is preserved for bare no-run/no-subcommand defs. Verified: `auth status --badflag` now errors "Unknown flag: --badflag" (previously silent); `auth --help` still dispatches; top-level `lint --badflag` still rejected. Tests: unknown-flag rejection is reported, and a nested subcommand's failure reaches onFailure. * test(cli): guard indexed subCommands access for noUncheckedIndexedAccess CI Typecheck (tsc, unlike the local tsup build) flagged the nested-subcommand test: indexing `subCommands["render"]` yields `T | undefined` under noUncheckedIndexedAccess, so invoking it tripped TS2722/TS18048. Guard the loader before calling it.
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