* docs(prompting): correct workflow one-liners against skill contracts general-video leads with its positive identity and companion mode; faceless-explainer keys on invented visuals instead of TTS; talking-head-recut uses the 'graphic overlays' trigger term; motion-graphics gains its input side and overlay output; music-to-video stops implying images are required. * docs(prompting): make vocabulary video grids readable Replace the 4-5 column table hack with a 3-column CSS grid, switch demo clips to autoplay muted loops (no black poster frame, no player chrome over tiny videos), and align cells at 16:9. * docs(prompting): document the opening interview and run-shape questions The guide taught prompt shapes but never prepared readers for the conversation that follows: the intent interview, the two run-shape questions (storyboard, automation vs companion), the just-build-it skip, and BRIEF.md as the resumable artifact. Add that section to the overview, a disambiguation note on the storyboards page, and free up 'companion' as a reserved term in media-and-audio. * docs(guides): make BRIEF.md the pipeline's Step 3 artifact Step 3 (Strategy & Messaging) listed no output while describing exactly what BRIEF.md now captures. Name the artifact in the step table, project tree, step body, gate, and iterating list, and fix SCRIPT.md's step label in the tree (Step 4, not 3). * docs(quickstart): realign the setup surface with the skills catalog The quickstart drifted from docs/guides/skills.mdx, CLAUDE.md, and the prompting overview — it had never been updated when those surfaces were: - `--full-depth` on both install commands, with the reason inline. Without it `skills add` fetches the skills.sh registry blob, which lags `main` by hours, so a reader following the quickstart installs stale skills. - `check` in the `/hyperframes-cli` row, and a validate step in the manual dev loop, which went preview → render with no gate at all. The prompting overview calls `check` "the step people skip and regret" and states both `lint` and `check` must pass before rendering. - `/hyperframes-keyframes` in the core-skills table (8 rows → 9). - `/figma` in the optional-workflow list (10 → 11). * docs(skills): close the catalog drift class and complete the music-to-video input Follow-up on the two review nits from #2872. `/music-to-video`'s SKILL.md names three inputs — an audio file, a video to pull audio from, or a track generated from a mood brief. Every compressed copy of that description carried only the first two, and the third is the one that makes "a complete video needs zero assets" true. Fixed on all eight surfaces that state it, so no surface is now more correct than its siblings: the prompting overview and quickstart setup tables, docs/guides/skills.mdx, the README catalog, root CLAUDE.md + AGENTS.md, both CLI project templates, and the router's own routes/music-to-video.md Input line (whose Interview must-haves already listed all three). The drift was structural, not accidental: the sync set declared in docs/guides/skills.mdx and in CLAUDE.md's "Skill catalog maintenance" named four surfaces and never the two setup tables, so those two were free to rot while the declared four stayed correct. Both declarations now name them, and both say the set applies to a *changed contract* — a reworded description — not only to an added or renamed skill. skills-manifest.json regenerated for the touched route file. * docs(claude): point the routing-surface rule at routes/, not the moved stubs Item 3 of "Skill catalog maintenance" still sent readers to `references/workflow-catalog.md` for a workflow's input/output/trigger contract and `references/route-briefs.md` for its interview entry. Both are now "moved" stubs — the contract and the interview entry live together in `references/routes/<workflow>.md`, one read per candidate route. Same failure class the previous commit fixed at item 1: a maintenance rule outliving the layout it describes. Swept the tree for other pointers at the two stubs; there are none, so this closes it rather than fixing one instance.
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Hyperframes
Open-source video rendering framework: write HTML, render video.
Skills
This repo ships 19 AI agent skills via vercel-labs/skills. Install them before writing compositions — they encode framework-specific patterns that generic docs don't cover. Default to the core set: the /hyperframes router installs each creation workflow on demand; install all 19 only when the user explicitly asks for the full set.
npx hyperframes skills update # default: installs/refreshes the core set — workflows install on demand
npx skills add heygen-com/hyperframes --full-depth # interactive picker (terminal only — non-interactive without --skill installs all 19)
npx skills add heygen-com/hyperframes --all --full-depth # all 19 at once — only on explicit request
npx skills add heygen-com/hyperframes --skill <name> --full-depth # just one (bare name, no leading slash)
Keep --full-depth: it installs the current main. Without it, skills add fetches the skills.sh registry blob, which lags main by hours (you'd get a stale skill). hyperframes skills update already uses full-depth.
/hyperframes is the entry skill — read it first. It's the capability map for the domain skills below, the intent layer that confirms every creation brief up front, AND the intent router for the creation workflows. The full README skills section mirrors this list; keep them in sync (see "Skill catalog maintenance" below).
Creation workflows
/product-launch-video— any website URL (or a pre-written script / text brief in no-capture mode) → a product launch / promo video, or a site tour / showcase featuring the site's own captured screens; up to ~3 min (sweet spot ~30-90s)./faceless-explainer— arbitrary text, no URL and no website capture → faceless explainer, up to ~3 min (sweet spot ~30-90s); every visual is LLM-invented (typography / abstract graphics / diagram / data-viz)./pr-to-video— a GitHub PR (URL /owner/repo#N/ "this PR") → code-change explainer, up to ~3 min (changelog / feature reveal / fix / refactor). A PR link, not a product website./embedded-captions— an existing talking-head video (MP4) → the same footage with captions / subtitles added (verbatim rail + embedded climax, or pure-cinematic embed); the footage itself is untouched (no NLE-style editing)./talking-head-recut— an existing talking-head / interview / podcast video (MP4) → the same footage packaged with designed graphic overlays (kinetic titles, lower-thirds, data callouts, pull-quotes, side panels, PiP) synced to the transcript; the clip plays unchanged underneath, footage untouched. For plain captions/subtitles →/embedded-captions./motion-graphics— a short (typically under 10s) design-led motion graphic, motion-is-the-message, no narration: kinetic type, a stat / number count-up, a chart, a logo sting, a lower-third / overlay, or an animated tweet / headline / captured-page highlight; rendered to MP4 or a transparent overlay. Longer / narrated / custom →/general-video./music-to-video— a music track (audio file, video to pull audio from, or one generated from a mood brief) → beat-synced video (lyric / slideshow / kinetic promo). Music drives pacing; user-supplied images / videos are cut onto the same beat grid./slideshow— a presentation / pitch deck / interactive deck — discrete slides, fragment reveals, branching, hotspot navigation, presenter mode. Output is a navigable deck, not a rendered video./general-video— fallback for any other video creation (title card, longer brand / sizzle reel, multi-scene montage, static loop, custom composition) and the home of companion mode — co-create with the full HyperFrames toolbox; the original hyperframes flow — design → plan → layout → build → validate, any length./remotion-to-hyperframes— port an existing Remotion (React) composition to HyperFrames HTML. One-way migration, not creation.
Domain skills (loaded on demand)
Atomic capabilities the creation workflows compose against — pull one when you need that specific layer:
/hyperframes-core— the composition contract:data-*timing attributes,class="clip", tracks, sub-compositions, variables, framework-owned media playback, determinism rules. Read before writing composition HTML./hyperframes-animation— all animation knowledge: atomic motion rules, scene blueprints, transitions, runtime adapters (GSAP default, plus Lottie / Three.js / Anime.js / CSS / WAAPI / TypeGPU)./hyperframes-keyframes— seek-safe keyframe authoring across runtimes: GSAP timelines, CSS keyframes, Anime.js, WAAPI, FLIP, paths, masks, SVG morph/draw, text trails, 3D depth; plushyperframes keyframesdiagnostics for surfacing and verifying rendered motion./hyperframes-creative— non-animation creative direction:frame.md/design.mdhandling, palettes, typography, narration, beat planning, audio-reactive visuals, composition patterns./media-use— the media OS: resolve any media need (BGM, SFX, image, icon, logo, voice, color grade, LUT) into a frozen local file or paste-ready block + ledger record; generate via TTS / music / image models when the catalog misses; transcribe, caption, remove backgrounds, and reuse assets across projects. One sharedscripts/audio.mjsengine + manifest tracking; keeps search noise on disk./hyperframes-cli— CLI dev loop:init,add,lint,check,snapshot,preview,render,publish,doctor,lambda(AWS Lambda cloud rendering)./hyperframes-registry— install and wire registry blocks and components into compositions viahyperframes add. Covers authoring a new block or component to contribute upstream./figma— import Figma assets, tokens, components, and storyboard sections → reconstructed motion (frames read as states, not slides) (REST/CLI) plus Motion animations (MCP) and shaders (MCP source / native export) into a composition.
Skill catalog maintenance
When adding a new skill, or substantially renaming / repurposing an existing one, update all agent-facing discoverability surfaces in lockstep:
- The skill list above (CLAUDE.md) AND the workflow list in the root
AGENTS.md(it carries workflows only, no domain-skill section) AND the## Skillssection inREADME.mdANDdocs/guides/skills.mdx(rendered at hyperframes.heygen.com/guides/skills) AND the two setup tables that compress the same descriptions —docs/prompting/overview.mdx("One-time setup") anddocs/quickstart.mdx. Out-of-date entries silently kill discovery. This list is also the sync set for a changed contract, not just an added or renamed skill: a rewordeddescription:has to be pushed to every surface or the compressed copies start asserting the opposite of the skill. - The scaffolded project template
packages/cli/src/templates/_shared/CLAUDE.md+AGENTS.md— written into everyhyperframes initproject, so a stale entry there ships to users. The two template files must stay byte-identical. - If the skill changes the routing surface for "make a video" requests, also update the routing table + intent layer in
skills/hyperframes/SKILL.mdAND that workflow's own route file,skills/hyperframes/references/routes/<workflow>.md. One file carries both halves: the input/output/trigger contract the router reads before the workflow is installed, and its interview entry (must-haves, conditionals, deferred asks, run-shape). The olderreferences/workflow-catalog.mdandreferences/route-briefs.mdare now "moved" stubs pointing atroutes/— don't edit them. - Mirror the Router / Creation workflows / Domain skills grouping across all surfaces so a skill always lives in the same column.
- Skill count appears in the README and CLAUDE.md intro lines ("19 AI agent skills…") — update on add/remove. The
docs/guides/skills.mdxpage and the CLI templates deliberately omit a count to avoid drift; keep them count-free.
The skill's own SKILL.md frontmatter description: is the source of truth for the one-line "use when" blurb; copy from there into the catalog rather than paraphrasing.
Build & Test
bun install # Install dependencies (NOT pnpm — do not create pnpm-lock.yaml)
bun run build # Build all packages
bun run test # Run all tests
Linting & Formatting
Uses oxlint and oxfmt (not eslint, not prettier, not biome).
bunx oxlint <files> # Lint
bunx oxfmt <files> # Format
bunx oxfmt --check <files> # Check formatting (CI / pre-commit)
Always lint and format changed files before committing. Lefthook pre-commit hooks enforce this automatically.
Composition Validation
After creating or editing any .html composition:
npx hyperframes lint # Static HTML structure check
npx hyperframes check # Browser gate (headless Chrome — runtime errors, layout, motion, WCAG contrast)
Both must pass before previewing or considering work complete.
Project Structure
packages/
cli/ → hyperframes CLI (create, preview, lint, render)
core/ → Types, parsers, generators, linter, runtime, frame adapters
engine/ → Seekable page-to-video capture engine (Puppeteer + FFmpeg)
player/ → Embeddable <hyperframes-player> web component
producer/ → Full rendering pipeline (capture + encode + audio mix)
shader-transitions/ → WebGL shader transitions for compositions
studio/ → Browser-based composition editor UI
registry/
blocks/ → Installable sub-composition scenes (50+)
components/ → Installable effects and snippets
examples/ → Starter project templates
docs/ → Mintlify documentation site (hyperframes.heygen.com)
skills/ → AI agent skill definitions
Key Conventions
- Package manager: bun (not pnpm, not npm for workspace operations)
- Commit format: Conventional commits (
feat:,fix:,docs:,refactor:,test:) - TypeScript: Avoid
anyandas Tassertions. Prefer type guards and narrowing. - Compositions: HTML files with
data-*attributes. Clips needclass="clip". GSAP timelines must be paused and registered onwindow.__timelines. - Frame Adapters: Animation runtimes plug in via the seek-by-frame adapter pattern. GSAP is the primary adapter.
- Deterministic rendering: No
Date.now(), no unseededMath.random(), no render-time network fetches.
Documentation
- Docs: https://hyperframes.heygen.com/introduction
- Catalog (50+ blocks): https://hyperframes.heygen.com/catalog/blocks/data-chart