Vance IngallsandClaude Opus 5
4f464dc424
Both reviewers flagged the same gap: seed injection was gated on telemetryShouldTrack(), but canary EVALUATION was not. An install with DO_NOT_TRACK=1 was still bucketed and still had real code paths flipped (e.g. HF_DE_PARALLEL_ROUTER), silently and unmeasurably. A canary is a measured rollout — we enrol a slice precisely so it can be compared against everyone else. An install that sends nothing can't be compared, so enrolling it buys no signal and only changes that user's code path, on an experimental feature, without their knowledge. That is the wrong side of an opt-out. Resolves to a new `telemetry_opt_out` reason BEFORE bucketing, so no cohort is assigned at all. Distinct from `excluded` because "why is my canary off" has a very different answer for CI than for opted-out, and the reason never reaches telemetry by construction. Covers every opt-out route: persisted preference, the runtime env vars and dev/telemetry-disabled builds via policy.ts, and Studio's hyperframes-studio:telemetryDisabled. An explicit HF_CANARY_* / ?hf_canary_*= override still wins — a deliberate local choice, not silent enrolment, and the documented way to exercise a canary with telemetry off. The CLI check mirrors shouldTrack() rather than importing it: client.ts already imports canary.ts for canaryEventProperties, so depending on it would be a cycle. Both read the same two inputs, so they cannot disagree. Tests: 9 new across CLI and Studio (preference off, each runtime override, no bucket assigned, override still honoured, flag properties all-false). Fault injection: removing the CLI gate fails 6, removing the Studio gate fails 3. Co-Authored-By: Claude Opus 5 (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. 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