71 Commits
Author SHA1 Message Date
Vance IngallsandClaude Opus 4.6 c47e710ffc feat(skills): add scene transitions skill with 35-type catalog (#212)
## What

A scene transition selection framework and implementation catalog covering 35 transition types across 8 categories.

### transitions skill

**SKILL.md** — Selection framework:
- Energy → transition mapping (calm/medium/high)
- Mood → transition mapping (warm, cold, editorial, tech, edgy, playful, dramatic, premium, retro)
- Narrative position guidance (opening, between sections, climax, outro)
- Blur intensity scaling by energy level
- Configuration presets (snappy, smooth, gentle, dramatic, instant, luxe)

**catalog.md** — Implementation reference:
- GSAP code for all 35 transitions
- Hard rules from real bugs (scene visibility, iframe compatibility, VHS clone pattern, z-index, overlay sizing)
- Scene template

### Categories

| Category | Transitions |
|----------|------------|
| Content-transforming | Push slide, vertical push, elastic push, squeeze, zoom through, zoom out, gravity drop, 3D flip |
| Reveal/mask | Circle iris, diamond iris, diagonal split, clock wipe, shutter |
| Dissolve | Crossfade, blur crossfade, focus pull, color dip |
| Cover | Staggered blocks, horizontal blinds, vertical blinds |
| Light | Light leak, overexposure burn, film burn |
| Distortion | Glitch, chromatic aberration, ripple, VHS tape |
| Pattern | Grid dissolve |
| Instant | Flash cut, morph circle |

## Why

Agents building multi-scene compositions were using the same opacity crossfade for every scene change regardless of video mood/energy. The transitions skill provides context-aware selection so a wellness video gets blur crossfades while a sports promo gets flash cuts and a cyberpunk event gets VHS distortion.

## How

- SKILL.md follows writing-skills guide: description uses "Use when..." triggers, no workflow summary, under 500 words
- catalog.md is heavy reference with table of contents
- Hard rules consolidated from real rendering bugs discovered during 16 A/B eval comparisons
- Mood mappings designed from a motion design perspective

## Test plan

- [x] 16 A/B eval compositions comparing with/without skill across moods
- [x] 39-scene transition catalog composition demoing every type
- [x] Skill audit against writing-skills guide
- [x] All transition types mapped to at least one mood
- [x] Lint passes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 20:29:23 -07:00
Vance Ingalls d8bffd41f9 feat(lint,skills): add caption/audio-reactive lint rules and skill guidance (#207)
## What

Bumped all package versions to `0.2.2-alpha.4` and added five new lint rules for caption and GSAP animation quality checks.

## Why

The new lint rules address common issues in HyperFrames compositions:
- Caption overflow clipping when emphasis words are scaled above 1.0x
- Text shadow artifacts on caption group containers with semi-transparent children
- Mismatch between fitText maxWidth and scaled word dimensions
- Imperceptible audio reactivity from single tweens instead of time-sampled animations
- Scene layer visibility conflicts when relying only on opacity tweens

## How

Added three new caption-specific lint rules in `captions.ts`:
- `caption_overflow_clips_scaled_words` - detects `overflow: hidden` on caption containers when scripts scale words above 1.0x
- `caption_textshadow_on_group_container` - flags textShadow tweens applied to group containers instead of individual words
- `caption_fittext_scale_mismatch` - calculates effective width from fitText maxWidth × max scale factor and warns when it exceeds safe bounds

Added two new GSAP lint rules in `gsap.ts`:
- `audio_reactive_single_tween_per_group` - identifies audio-reactive captions using peak values instead of time-sampled loops
- `scene_layer_missing_visibility_kill` - detects multi-scene compositions missing hard visibility kills after opacity exit tweens

Enhanced documentation with new mask reveals guide and updated existing skills with overflow handling, scene management, and audio reactivity best practices.

## Test plan

- [x] Lint rules tested against existing composition patterns
- [x] Documentation updated with new techniques and constraints
- [x] Version bumps applied consistently across all packages
2026-04-03 10:52:06 -07:00
James RussoandClaude Opus 4.6 7389c0c89b feat(cli): add tts command for local text-to-speech via Kokoro-82M (#201)
* feat(cli): add `tts` command for local text-to-speech via Kokoro-82M

Adds `hyperframes tts` — generate speech audio locally using Kokoro-82M
(ONNX), no API key needed. Mirrors the transcribe command architecture.

- New command: `hyperframes tts "text" --voice af_heart --output speech.wav`
- 54 voices across 8 languages, ~5x realtime on CPU
- Auto-downloads model (~311 MB) + voices (~27 MB) to ~/.cache/hyperframes/tts/
- Requires Python 3.8+ with kokoro-onnx installed
- Extracted shared `downloadFile` utility from whisper/manager.ts with
  atomic .tmp→rename to prevent partial download corruption
- Added hyperframes-tts skill with voice selection guide
- Updated CLAUDE.md with TTS docs, voice table, and skill reference

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs(tts): improve skill per skill-creator guidelines

- Move trigger info from body to frontmatter description
- Remove `trigger` field (not a valid frontmatter field)
- Remove CLI flag docs Claude can derive from --help
- Remove redundant voice tables (keep content-to-voice mapping)
- Fix composition audio example to use actual <audio> element pattern
- Keep non-obvious workflows: TTS+transcribe for captions, long scripts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs(tts): add guidance for using external TTS sources

Help users understand when to use cloud TTS (voice cloning, broader
languages, higher quality) vs the built-in Kokoro model, and how
external audio integrates into the same composition workflow.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs(tts): prioritize HeyGen API as recommended cloud TTS

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs(tts): remove external TTS section for now

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(tts): set required: false on input arg so --list works standalone

Citty treats positional args as required by default unless explicitly
set to required: false. Without this, `hyperframes tts --list` fails
with "Missing required positional argument".

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(tts): add --help examples and fix required:false for --list

Add examples section to `tts --help` matching the pattern from other
commands (transcribe, render, etc.). Fix citty positional arg requiring
explicit `required: false` for --list to work standalone.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add CLI command checklist to CLAUDE.md

Ensure new commands always get --help examples in help.ts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 14:09:25 -07:00
Vance Ingalls cb0b17062a feat(skills): add marker-highlight skill for animated text highlighting (#190)
## Summary

- **New skill:** **`marker-highlight`** — integrates [MarkerHighlight.js](https://github.com/Robincodes-Sandbox/marker-highlight) into HyperFrames compositions. Canvas-based animated text highlighting with 5 drawing modes: marker pen, circle, burst, scribble, and sketchout.
- **Studio fix:** added missing `captionSync` to useEffect dependency array (oxlint exhaustive-deps)
- **Studio fix:** `loadOverrides` now checks `res.ok` before parsing, preventing 404 console noise on projects without captions

## Skill details

The skill documents the non-obvious GSAP integration pattern discovered during development:

1. **One highlighter per container** — the library clears ALL `.highlight` divs from the shared parent on init, so multiple instances on sibling marks conflict
2. **`data-color`** **\+** **`data-original-bgcolor`** — prevents the CSS background-color flash that occurs when the library reads and clears the mark's background
3. **Canvas pre-draw + clear + reanimate** — `animate: false` pre-draws statically, canvases are hidden, then cleared and shown with `reanimateMark()` at trigger time for clean animated reveals
4. **`onReverseComplete`** **for rewind** — hides highlight divs when the timeline seeks backward past the trigger point

## Test plan

- [ ] `npx hyperframes lint` passes on test-composition
- [ ] Studio preview shows marker highlight on "something" at 1s, circle on "love" at 2.2s
- [ ] Rewind past trigger points hides highlights
- [ ] No 404 console errors for caption-overrides.json on non-caption projects



[Screen Recording 2026-04-02 at 1.56.30 AM.mov <span class="graphite__hidden">(uploaded via Graphite)</span> <img class="graphite__hidden" src="https://app.graphite.com/user-attachments/thumbnails/53b03f4e-538e-477a-b738-7a033b99a84e.mov" />](https://app.graphite.com/user-attachments/video/53b03f4e-538e-477a-b738-7a033b99a84e.mov)



🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-04-02 13:48:24 -07:00
Vance IngallsandClaude Opus 4.6 5e2781b459 fix(studio): address caption designer PR feedback (#200)
* fix(studio): address caption designer PR feedback

Fixes from review comments on feature/caption-designer (#180):

- fix(generator): guard named colors in hexToRgba — "red", "transparent"
  no longer produce NaN rgba values
- fix(sync): log auto-save failures instead of silently swallowing them
- fix(sync): check res.ok before parsing caption-overrides response
- refactor(components): extract Section, Row, inputCls into shared.tsx
  to eliminate duplication between CaptionPropertyPanel and
  CaptionAnimationPanel
- fix(store): replace non-deterministic Date.now()+Math.random() ID with
  counter-based group IDs
- fix(store): read selectedGroupId from state param instead of get() to
  avoid stale reads in batched set() calls
- fix(overlay): remove cssScale multiplier from getBoundingClientRect
  coords — the browser already accounts for CSS transforms
- docs(parser): add comment explaining the lazy ];  regex assumption

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(studio): address remaining caption designer feedback

Overlay: handle both per-word spans (generator output) and grouped text
nodes (existing templates). Wraps text nodes into individual spans on
demand so the overlay can target words in any caption format.

Property panel: add Typography (font, size, weight, spacing) and Color
(color, active, dim, opacity) sections alongside existing Position and
Transform controls.

Timeline: move caption timeline into a dedicated flex-shrink-0 section
below the main timeline tracks instead of inside the scrollable area.
Gives it fixed 60px height that's always visible.

Caption overrides: classify color tweens by comparing target color to
the dim baseline instead of relying on timeline position order. This
handles compositions with custom color tweens correctly.

App.tsx: remove polling interval, rely on runtime postMessage events
for caption detection. Add clarifying comment on why useEffect is
appropriate (external event subscription).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(studio): restore cssScale in overlay coordinate conversion

getBoundingClientRect() on iframe-internal elements returns coordinates
in the iframe's native resolution (1920x1080), not the CSS-scaled
display size. The cssScale multiplier is needed to convert to parent
window coordinates. The earlier removal was incorrect — it only worked
at 1:1 scale.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(studio): fix reversed scaling on left-side corner handles

Scale interaction used horizontal dx from start position, which goes
negative when dragging left handles outward. Now uses distance from box
center — dragging away from center increases scale regardless of which
corner handle is used.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(studio): make rotation respond to horizontal drag only

Rotation handle sits directly above the word, so atan2-based rotation
barely responds to left/right movement. Replace with linear horizontal
mapping: drag right = clockwise, drag left = counter-clockwise,
200px = 90 degrees. Vertical movement is ignored.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(studio): remove animation tab and typography/color from property panel

Keep only Position (X, Y) and Transform (Scale, Rotation) controls.
Remove tab switcher UI since there's only one view now.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* style: fix oxfmt formatting in CLAUDE.md and captions skill docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 11:38:35 -07:00
Vance Ingalls d36c1785b9 feat(captions): energy-based technique selection and mandatory quality checks (#176)
## Summary

- Rewrite script-to-style mapping as an energy detection table (high → low) with mandatory animation requirements: karaoke baseline, 2+ highlight techniques, kinetic exits
- Replace `tl.call()` per-frame audio-reactive pattern with group-level GSAP tweens — read peak bass/treble for each group's time range and modulate entrance intensity at build time, no per-frame callbacks needed
- Add transcript quality check with automatic retry rules (>20% music tokens = retry with larger model)
- Add caption word structure lint rule (`.caption-group` + `<span>`) for studio editor compatibility
- Add multilingual model guidance and decision tree for model selection

## Test plan

- [ ] Skill files render correctly as markdown
- [ ] Cross-references between SKILL.md, dynamic-techniques.md, and transcript-guide.md resolve correctly
- [ ] `dynamic-techniques.md` audio-reactive section uses `tl.to()`/`tl.set()` only, no `tl.call()` loops

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-04-02 00:47:43 -07:00
Vance Ingalls ad2d63db32 feat(cli): skill install targets + remove custom install in favor of vercel-labs/skills (#177)
## Summary

**Skill install targets (original):**
- Add project-level skill install targets: Windsurf, Cline, Roo Code, Trae (opt-in via flag)
- Split install logic into global vs project-level
- Fix lint false positive: timed tags with `data-composition-id` no longer flagged by media rule

**Skill system cleanup (folded from #189):**
- Delete `install-skills.ts` (~485 lines) — remove custom installation wrapper entirely
- Strip skill logic from `init` — no more project-level `.claude/skills/` copies, no `--skip-skills` flag; replaced with post-scaffold message: `npx skills add heygen-com/hyperframes`
- Front-load SKILL.md trigger words — all 5 skill descriptions rewritten so activation language comes first (~150 chars)
- Update CLAUDE.md — install instructions now point to [vercel-labs/skills](https://github.com/vercel-labs/skills)
- Fix `.claude/settings.json` — pre-commit hook changed from `pnpm` to `bun`

## Test plan

- [ ] `npx hyperframes skills` → "Unknown command skills"
- [ ] `npx hyperframes init test --template blank --non-interactive --skip-transcribe` → prints `npx skills add heygen-com/hyperframes`
- [ ] `grep -r "install-skills" packages/cli/src/` → no results
- [ ] All 5 `skills/*/SKILL.md` have front-loaded descriptions

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-04-02 00:47:25 -07:00
Vance Ingalls 37404f23da feat(whisper+captions): language detection, audio-reactive captions, multilingual defaults (#175)
## Summary

**Whisper improvements:**
- Auto-detect language and switch from `.en` to multilingual model when needed
- Detect speech onset in WAV to strip hallucinated words before speech begins
- Merge whisper-cpp token fragments: contractions (`didn` + `'t` → `didn't`), split capitals (`C` + `aught` → `Caught`), dropped-g (`shin` + `in'` → `shinin'`)
- Interpolate zero-duration word clusters for reliable karaoke timing

**Captions skill updates (folded from #176):**
- Rewrite script-to-style mapping as an energy detection table (high → low) with mandatory animation requirements: karaoke baseline, 2+ highlight techniques, kinetic exits
- Replace `tl.call()` per-frame audio-reactive pattern with group-level GSAP tweens — read peak bass/treble for each group's time range and modulate entrance intensity at build time
- Add transcript quality check with automatic retry rules (>20% music tokens = retry with larger model)
- Add caption word structure lint rule (`.caption-group` + `<span>`) for studio editor compatibility

**Multilingual defaults (folded from #186):**
- Default whisper model changed from `small.en` to `small` to prevent silent translation of non-English audio
- Added non-negotiable language rule to captions skill

## Test plan

- [ ] `pnpm test` passes (contraction merging, fragment merging, zero-duration interpolation, speech onset)
- [ ] Transcribe non-English audio — verify it transcribes in original language, not translates
- [ ] Skill files render correctly, cross-references resolve
- [ ] `dynamic-techniques.md` audio-reactive section uses `tl.to()`/`tl.set()` only, no `tl.call()` loops

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-04-02 00:08:41 -07:00
Vance Ingalls 159a2e7113 feat(skills): add dynamic caption techniques and split captions skill into references (#173)
## Summary

- Split the captions skill from a single 611-line file into focused references: `SKILL.md` (core rules), `transcript-guide.md` (whisper/transcription), `dynamic-techniques.md` (animation patterns)
- Add `audio-reactive` skill with "Content, Not Medium" constraint — steers away from generic visualizations (equalizer bars, spectrum analyzers, waveforms) toward content-grounded animation where audio drives *when* and *how much*, not *what to show*
- Add initial dynamic caption technique selection by energy level

## Test plan

- [ ] All skill files render correctly as markdown
- [ ] Cross-references between files use correct relative paths
- [ ] `audio-reactive/SKILL.md` contains the anti-pattern list and content-grounded examples

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-04-01 23:24:25 -07:00
Vance IngallsandClaude Opus 4.6 116e6aa8e0 feat(skills): add audio visualizer effect with extraction script (#168)
* feat(skills): add audio visualizer effect with extraction script

Adds reactive audio visualization patterns for HyperFrames:

Script: extract-audio-data.py pre-extracts per-frame RMS amplitude and
frequency band data via ffmpeg. Uses a 4096-sample FFT window for clean
frequency resolution and per-band normalization across the full track
so treble activity is visible alongside louder bass.

Patterns: spectrum bars, mirrored waveform, pulsing circle, circular
visualizer, background glow — all Canvas 2D driven from the GSAP
timeline via tl.call() at each frame.

Includes smoothing helper, band count guide, band ordering rules
(horizontal: low-left high-right), and combining patterns section.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor(skills): replace prescriptive examples with data model + motion principles

Removes five hardcoded draw functions that would get copy-pasted verbatim.
Replaces with:
- Clear data model docs (what rms and bands mean, how to index)
- Rendering approach setup for Canvas 2D, WebGL/Three.js, and DOM
- Motion principles (smoothing, value mapping, what makes it feel good)
- Spatial mapping conventions (low-left/high-right, etc)

The LLM invents the visualization; the skill teaches the data contract
and motion constraints.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): off-by-one in band slicing, add data loading, fix trigger

- Fix exclusive slice end: high_bin clamped to n_bins (not n_bins-1)
  so the last FFT bin in each band is included
- Add data loading section to skill doc (inline and fetch patterns)
- Fix example JSON to show frame 0 at time 0.0
- Update description to trigger when audio is analyzed and music detected

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor(skills): require numpy, fix bugs, clean up skill doc

Script rewrite:
- numpy is now required (pure-Python DFT was unusable for real files)
- Use np.frombuffer instead of struct.unpack (~10x less memory)
- Precompute Hann window and band edges (were recalculated every frame)
- Extract SAMPLE_RATE as module-level constant
- Clamp band bins to prevent max() on empty slice
- Validate --fps and --bands inputs

Skill doc fixes:
- Fix fetch loading example (was null ref on sync for-loop)
- Remove redundant Canvas 2D section (was duplicate of Step 3)
- Fix opening line (said "Canvas 2D" but doc covers 3 approaches)
- Fix undefined W/H in example

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 15:33:00 -07:00
Vance IngallsandClaude Opus 4.6 e7283e5ce3 feat(skills): add gsap-effects skill with typewriter pattern (#158)
* feat(skills): add gsap-effects skill with typewriter pattern

Distills typewriter text animation into a reusable reference:
basic typewriter, blinking cursor, word rotation, appending words,
and a characters-per-second timing guide. Uses GSAP TextPlugin.

Also references the new skill from compose-video.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): emphasize cursor must always blink when idle and sit flush

Two key rules added to the typewriter skill:
1. Cursor must blink in every idle state (after typing, after clearing,
   during hold pauses) — a solid idle cursor looks broken.
2. No whitespace between text and cursor elements in HTML — any gap
   between the last character and the caret looks wrong.

Also adds cursor-hide state for multi-line handoffs and updates word
rotation example to include cursor state management.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): backspace must delete from end, not front

TextPlugin's text:{value:""} removes characters from the front,
which looks wrong. Added a backspace helper that steps through
substrings from right to left using tl.call(). Updated word
rotation example to use it.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): handoffs must blink before typing, use margin for spacing

Two lessons from testing:
1. Cursor handoffs need a blink pause — going hide→solid directly
   skips the idle state. Pattern: hide→blink→pause→solid→type→blink.
2. Use margin-left on a wrapper span for spacing between static and
   dynamic text. Flex gap spaces the cursor away, trailing spaces
   collapse.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): enforce single visible cursor as a hard rule

Only one cursor may be visible at a time. Multiple cursors on
screen looks broken. Every other cursor must be cursor-hide.
Promoted to rule #1 in the cursor section.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 11:35:19 -07:00
Vance IngallsandClaude Opus 4.6 9cbfec1eca feat(skills): add hyperframes-cli skill (#154)
* feat(skills): add hyperframes-cli skill for CLI workflow guidance

Adds a new skill that teaches AI agents how to use the HyperFrames CLI
(init, lint, dev, render, doctor). Previously, agents had no way to
discover the CLI — the compose-video skill only covered HTML authoring.
This led to agents searching for binaries, finding the monorepo, and
running bun run studio manually instead of using npx hyperframes dev.

Also registers the skill in init.ts so new projects get it bundled
alongside hyperframes-compose and hyperframes-captions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* refactor(cli): rename dev command to preview

The command starts a preview server — "preview" describes what users
are doing more accurately than "dev". Updates the command name, file
name, all CLI references, docs, skills, and template CLAUDE.md.

22 files updated across CLI source, docs, skills, and templates.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): replace stale dev reference with preview in CLI skill

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(docs): catch remaining dev references missed in rename

- testing-local-changes.mdx: two inline command examples
- troubleshooting.mdx: anchor link #dev → #preview, "dev server" → "preview server"
- cli.mdx: "dev server" → "preview server"

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 00:30:55 -07:00
James RussoandClaude Opus 4.6 a9d49cd528 fix(cli): auto-copy all templates to dist and add skill lint (#153)
- Replace hardcoded template list in build:copy with `cp -r src/templates/*`
  so new templates are included automatically (kinetic-type, decision-tree,
  product-promo, nyt-graph were missing from published package)
- Fix captions SKILL.md: reword `!` and `>` in inline backticks that
  triggered Claude Code's bash permission checker
- Add scripts/lint-skills.ts to catch shell-unsafe patterns in SKILL.md
  files (runs as part of `bun run lint` in CI)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 20:33:54 -07:00
ef6225da1d feat(core): add fitTextFontSize utility for pixel-accurate text measurement (#152)
Add @chenglou/pretext dependency and fitTextFontSize() utility that uses
canvas measureText to compute the largest font size that fits text within
a given width. Replaces character-count heuristics with actual font-aware
measurement.

- New fitTextFontSize() in @hyperframes/core/text, exposed on window.__hyperframes
- Generalized for all text elements (captions, titles, etc.), not just captions
- Unit tests (mocked pretext) + browser integration test (real Chromium canvas)
- Updated captions skill docs with usage, exit guarantee, and self-lint patterns

Co-authored-by: James <james.russo@heygen.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 20:14:13 -07:00
James RussoandClaude Opus 4.6 2f99e33bbe feat(cli,core): standalone transcribe command, transcript normalization, caption lint rules (#151)
* feat(cli,core): add standalone transcribe command, transcript normalization, and caption lint rules

- Add `hyperframes transcribe` command for transcribing audio/video and importing
  existing transcripts (SRT, VTT, OpenAI Whisper API JSON, whisper.cpp JSON)
- Add transcript format normalizer (normalize.ts) with auto-detection and
  conversion to standard [{text, start, end}] word arrays
- Upgrade default whisper model from base.en to small.en for better accuracy
- Add --model and --language flags to both `transcribe` and `init` commands
- Extract shared patchCaptionHtml() to eliminate duplication between init.ts
  and transcribe.ts (init.ts reduced by ~55 lines)
- Add 3 caption lint rules: caption_exit_missing_hard_kill,
  caption_text_overflow_risk, caption_container_relative_position
- Update captions skill with model guide, format docs, music guidance,
  text overflow prevention, caption exit guarantee pattern
- Expand captions skill trigger to cover lyrics, karaoke, lyric videos

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs(cli): add transcribe command and --model/--language flags to CLI docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(cli): fix blank template lint issues

- blank/index.html: remove data-start from video (was nested in timed parent),
  add class="clip" for initial hidden state
- blank/captions.html: add max-width + overflow:hidden to prevent text clipping,
  add tl.set hard kill after exit tween to prevent stuck captions

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add lint-after-edit rule to repo and project CLAUDE.md

Agents must run `npx hyperframes lint` after editing compositions.
Also expand captions skill description in project template.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* style: format _shared/CLAUDE.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 18:58:06 -07:00
Vance IngallsandClaude Opus 4.6 a97dc75702 fix(lint): detect GSAP animations targeting clip elements (tab crash) (#114)
* fix(lint): detect GSAP animations targeting clip elements (tab crash)

The runtime manages clip visibility via inline styles. When GSAP also
writes inline styles on the same element, both systems trigger style
recalculations every frame, creating a runaway loop that crashes the
browser tab.

New rule gsap_animates_clip_element (error severity):
- Builds map of all elements with class="clip" (by id and class)
- Checks if any GSAP selector resolves to a clip element
- Nested selectors like "#overlay .title" are correctly ignored
- Merged into existing GSAP script loop (no redundant parsing)

* fix: remove non-null assertions and add missing test coverage

- Replace `!` assertions with optional chaining in lint.ts and tests
- Add shouldBlockRender tests for --strict-all without --strict
- Add clip element test for class-only detection (no id)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: use optional chaining for array access in lintProject tests

TypeScript's strict mode flags array indexing as possibly undefined.
Use optional chaining and fallbacks instead of non-null assertions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 15:32:41 -07:00
JamesandClaude Opus 4.6 b8149abef5 chore(skills): rename compose-video → hyperframes-compose, captions → hyperframes-captions
Namespace skill names with `hyperframes-` prefix for clearer identity in
OSS contexts where users may have other skills installed.

Updates skill directories, SKILL.md frontmatter, CLAUDE.md, README.md,
CLI build script, init command, and project template.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-28 01:26:13 +00:00
Vance IngallsandClaude Opus 4.6 e3fad3029c feat(skill): add data-in-motion guide and house style refinements (#91)
data-in-motion.md — minimal guide for data/stats in video:
- Visual continuity: related data stays in same visual space
- Numbers need visual weight: pair metrics with fills/shapes
- Avoid web patterns: no pie charts, dashboards, axes, legends

house-style.md refinements from eval iterations:
- Layout approach variety (step 4 in Before Writing HTML)
- Explicit weight contrast requirement
- SVG illustration anti-default
- Overlap anti-default
- Ambient motion variety (not always zoom)

SKILL.md — added reference to data-in-motion.md

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-27 13:29:16 -07:00
Vance Ingalls 238962adff fix(skill): house style anti-defaults for SVG, overlap, and zoom (#68)
## Summary

- Anti-default: don't draw real-world objects with SVG paths — they look crude. Geometric shapes and abstract forms only.
- Anti-default: every element needs clear space — overlapping text is always ugly.
- Replaced zoom-in monoculture in choreography — now offers 6 ambient motion options instead of always zooming.
- Added scene pacing: build/breathe/resolve phases.

Follow-up to the house style PR (#59, merged). These fixes came from visual review of 20+ eval compositions.

## Test plan

- [ ] Generate a composition with a sparse prompt and verify no SVG illustrations of real objects
- [ ] Verify elements don't overlap in generated compositions
- [ ] Verify ambient motion varies (not always zoom-in)

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-03-26 14:02:30 -07:00
Vance IngallsandClaude Opus 4.6 f8fad54261 feat(skill): house style guide for compose-video (#59)
* feat(cli): non-interactive by default, --human-friendly for UI

Following ElevenLabs CLI pattern: default mode is agent-friendly
(flag-driven, plain text output, fail fast on missing args).
Interactive clack UI is opt-in via --human-friendly.

Init command:
- --template required in default mode (errors with example if missing)
- --video / --audio flags for media input
- --skip-skills / --skip-transcribe to control optional steps
- --human-friendly enables the existing interactive prompts
- --help shows examples for every flag combination
- Transcription runs automatically in default mode (unless --skip-transcribe)
- Plain console.log output, process.exit(1) on errors

Skills command:
- Added --human-friendly flag
- Added examples to --help output

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(cli): improve --help documentation and add --yes/--check to upgrade

- upgrade: add --yes and --check flags to skip interactive prompt
- benchmark: clarify description — preset fps/quality/worker configs
- browser: describe each subcommand (ensure/path/clear) in help
- docs: list available topics inline in --help output

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(skill): add house style guide with motion defaults, palettes, and anti-defaults

When no visual-style.md is provided, compose-video now follows house-style.md
for professional output quality. Includes:

- Motion: easing variety, timing, entrance patterns, choreography
- Sizing: text scale contrast, element fill, travel distance
- Visual depth: gradient/shadow/texture guidance
- Typography: weight contrast, tracking, case
- Anti-defaults: table of generic AI patterns to avoid
- 72 curated color palettes across 9 categories
- Content interpretation: generate real content, not prompt text

Eval-validated across 5 iterations with 50+ test compositions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(skill): add container anti-default and typography guidance

- Anti-default: discourage card/container patterns in favor of content
  placed directly on canvas (professional video style vs web UI style)
- Typography section: weight contrast, deliberate case, tracking, one
  typeface at two weights
- Visual depth: softened to avoid templating (content-appropriate, not
  every-composition-the-same)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat(skill): add scene pacing guidance to house style

Three-phase composition structure: build (staggered entrances),
breathe (subtle motion to keep holds alive), resolve (fast exits
with intention). Prevents front-loading all animation into the
first second and dead static holds.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skill): replace zoom-in monoculture with ambient motion variety

The viewport scale and end emphasis code examples were being copied
verbatim to every composition. Now offers 6 ambient motion options
(pan, rotation, scale in/out, parallax, color shift, stillness) and
4 ending options instead of always zooming.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-26 11:15:16 -07:00
Vance Ingalls 0ce9dd8496 feat: add HyperFrames skills for AI coding tools (#46)
## Summary

- 2 skills in `skills/` directory (tool-agnostic, installed via `hyperframes skills`)
  - **compose-video** (112 lines): Core HyperFrames composition authoring contract — data attributes, timeline, video/audio rules, GSAP constraints, editing consistency
    - `patterns.md`: PiP, title card, slideshow examples (loaded on demand)
  - **captions** (138 lines): Tone-adaptive caption styling from transcript analysis — per-word styling, script-to-style mapping, whisper.cpp format reference

## Test plan

- [ ] Skills load in Claude Code
- [ ] compose-video under 500 lines, no `assets/` or `fonts/` references
- [ ] Captions skill triggers on tone detection keywords

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-03-26 10:05:05 -07:00