Two surgical changes, both isolated to the catalog-previews flow:
1. `packages/studio/src/player/hooks/usePlaybackKeyboard.test.ts`
PR #842 changed `seek()` to take `(time, { keepPlaying: true })` for the
A/E shortcuts. The keyboard-layout tests added by #839 still asserted the
single-arg form. Both landed on main without cross-checking, so `main`
itself has been failing Test/Windows since. Update the two assertions
to match the new signature. Same fix Miguel already authored on
`feat/studio-preview-pasteboard-bg`.
2. `registry/components/vignette/demo.html`
The original demo captured a frame where the vignette was at its
weakest point — the effect was nearly invisible in the static preview
used by docs. Reworked the demo so:
- The backdrop is a layered "cinematic still" (warm key + teal rim +
dark falloff) and includes a centered subject ("moon"), so the
vignette has a focal point to frame.
- Vignette starts soft (size 70%, alpha 0.35) and ramps to a dramatic
cinematic vignette (size 26%, alpha 0.92) over 1.6s.
- Peak intensity holds across t≈3.0s, which is exactly where the
catalog script samples the thumbnail (`Math.min(3.0, duration*0.6)`
with duration=5).
- Breathing motion in t=3.4–5.2s gives the video loop visible life
without disturbing the still frame.
Pure-CSS radial darkening overlay that fills its positioned parent and
pulls focus toward the center. Shape, size, and color are exposed as
CSS custom properties (--vignette-shape, --vignette-size,
--vignette-edge, --vignette-color), so a GSAP timeline can animate any
of them — the snippet's header comment shows the pattern for fading
the vignette in.
The Components section currently has four entries; this fills the
cinematic-cinematography gap a video editor expects out of the box
without bundling any asset (the effect is a single radial-gradient).
Default z-index 90 sits below grain-overlay (100) so grain reads on
top of the darkened corners.
Catalog page, registry index, and nav are regenerated via
scripts/generate-catalog-pages.ts.
## What
Add 28 transition blocks from the Hyperframe Template Structure catalog, bringing the registry to 53 total items.
### Shader transitions (14 blocks, WebGL, 4s each)
`domain-warp-dissolve`, `ridged-burn`, `whip-pan`, `sdf-iris`, `ripple-waves`, `gravitational-lens`, `cinematic-zoom`, `chromatic-radial-split`, `glitch`, `swirl-vortex`, `thermal-distortion`, `flash-through-white`, `cross-warp-morph`, `light-leak`
### CSS transition showcases (14 blocks, various durations)
`transitions-3d`, `transitions-blur`, `transitions-cover`, `transitions-destruction`, `transitions-dissolve`, `transitions-distortion`, `transitions-grid`, `transitions-light`, `transitions-mechanical`, `transitions-other`, `transitions-push`, `transitions-radial`, `transitions-scale`, `transitions-shader`
## Why
Phase D content accumulation. Transitions are the most-requested category for the catalog.
## How
- Shader transitions extracted from `shader-showcase.zip`, each a standalone HTML with WebGL shaders
- CSS transitions extracted from `showcase-bundle.zip`, each a standalone showcase page
- All tagged with `transition` + `shader` or `showcase` for catalog grouping
- Preview thumbnails generated for all 28 blocks
- Catalog pages + index regenerated
## Test plan
- [x] All 28 blocks produce preview thumbnails
- [x] `registry-item.json` validates for all blocks
- [x] Catalog pages generated (45 total items in catalog-index.json)
- [x] `oxfmt --check` passes
## What
New skill `hyperframes-registry` that teaches AI coding agents how to install and wire registry blocks and components into HyperFrames compositions.
### Skill structure
```
skills/hyperframes-registry/
SKILL.md — triggers, overview, quick reference
references/
install-locations.md — default paths, hyperframes.json config
wiring-blocks.md — iframe inclusion, data attributes, positioning
wiring-components.md — snippet merging (HTML, CSS, JS, timeline)
discovery.md — manifest reading, item fields, available items table
demo-html-pattern.md — why components ship demo.html, structure conventions
examples/
add-block.md — worked example: data-chart block install + wiring
add-component.md — worked example: shimmer-sweep component install + wiring
```
## Why
Phase B of the catalog plan (PR 10). Without this skill, agents using `hyperframes add` have to guess how to wire installed items into compositions. The skill encodes the iframe/snippet patterns so agents get it right on the first attempt.
## How
- SKILL.md frontmatter triggers on: `hyperframes add`, "block", "component", `hyperframes.json`
- References cover every step: discovery, install, wiring blocks (iframe), wiring components (snippet merge), and the demo.html convention
- Two worked examples walk through complete install-to-preview workflows
- Updated CLAUDE.md skills table + trigger rules, README.md skills table, docs/packages/cli.mdx
## Test plan
- [x] `scripts/lint-skills.ts` passes (checked 4 skill files, no issues)
- [x] `oxfmt --check` passes on all markdown files
- [x] SKILL.md frontmatter has valid `name` and `description`
- [x] All reference links in SKILL.md resolve to existing files
- [x] CLAUDE.md, README.md, and docs CLI page updated with new skill
## What
Three reusable effect components for the registry, each with a snippet HTML and companion `demo.html`:
| Component | Description |
|-----------|-------------|
| `grain-overlay` | Animated film grain texture overlay (CSS keyframes, extracted from warm-grain example) |
| `shimmer-sweep` | CSS gradient light sweep across text/elements, driven by GSAP custom property animation |
| `grid-pixelate-wipe` | Grid-based dissolve transition — screen breaks into 16×9 squares that scale in/out with stagger |
Establishes the `demo.html` convention in `CONTRIBUTING.md`.
## Why
Phase B of the catalog plan — seed the first components in the registry. Components are effect snippets that get merged into existing compositions (vs. blocks which are standalone sub-compositions).
## How
- **grain-overlay**: Extracted the grain texture pattern from the warm-grain example. Uses a 200% oversized tiled texture with `steps(1)` keyframe animation for the random-noise effect.
- **shimmer-sweep**: Original implementation using CSS custom properties (`--shimmer-pos`) animated by GSAP. The gradient mask uses `mix-blend-mode: overlay` for a natural light sweep. Auto-injects `.shimmer-mask` elements into `.shimmer-sweep-target` wrappers.
- **grid-pixelate-wipe**: Creates a 16×9 CSS Grid of cells, animated with GSAP stagger. Users drive `.grid-cell` `scale` directly in their timeline.
Simplify review addressed: scoped `.grain-texture` under `#grain-overlay`, scoped `.grid-cell` under `#grid-pixelate-overlay`, removed `window.gridPixelateIn/Out` globals in favor of direct GSAP patterns.
Each component ships a `demo.html` — a standalone composition that previews the effect and doubles as a fixture for the CI preview pipeline (PR 8).
## Test plan
- [x] `hyperframes add grain-overlay` installs to `compositions/components/grain-overlay.html`
- [x] `hyperframes add shimmer-sweep` installs to `compositions/components/shimmer-sweep.html`
- [x] `hyperframes add grid-pixelate-wipe` installs to `compositions/components/grid-pixelate-wipe.html`
- [x] All three return correct `--json` output with snippet and type info
- [x] `registry-item.json` files validate against the JSON Schema
- [x] `demo.html` files are self-contained with correct `data-composition-id` and `window.__timelines` registration
- [x] `oxfmt --check` and `oxlint` pass on all files
- [x] `CONTRIBUTING.md` documents the `demo.html` convention and registry item checklist
James Russo