# HyperFrame Schema Compliance Review

## Executive Summary

- Total files reviewed: 4
- Critical issues: 0
- Overall compliance status: PASS

## Critical Issues

None. All compositions follow the core deterministic and structural requirements of the HyperFrame schema.

## Compliance Checklist

- [x] All compositions have `data-width` and `data-height` attributes
- [x] All timelines are finite with duration > 0
- [x] All compositions registered in `window.__timelines`
- [x] No use of `Math.random()`, `Date.now()`, or non-deterministic code
- [x] Primitive clips have required data attributes (`id`, `data-start`, `data-track`)
- [x] `data-duration` specified for all `<img>` clips (N/A - no images)
- [x] No manual media playback control (`video.play()`, `video.pause()`, etc.)
- [x] No manual clip mounting/unmounting in scripts
- [x] Relative timing references are valid (N/A - all absolute)
- [x] Clips on same track don't overlap in time
- [x] Reusable compositions in separate HTML files
- [x] Composition files use `<template>` tags
- [x] External compositions loaded via `data-composition-src`
- [x] All script-animated content wrapped in compositions
- [x] No infinite or zero-duration timelines

## File Reviews

### [index.html]

**Status**: COMPLIANT

**Issues Found**:

- None. The file correctly uses `data-composition-id`, `data-width`, `data-height`, `data-start`, `data-duration`, and `data-track`. It registers its timeline in `window.__timelines`.

### [compositions/mondrian-bg.html]

**Status**: COMPLIANT

**Issues Found**:

- None. Correct use of `<template>`, `data-composition-id`, and timeline registration. Animations are deterministic.

### [compositions/mondrian-colors.html]

**Status**: COMPLIANT

**Issues Found**:

- None. The script uses a fixed `TRANSCRIPT` array and deterministic logic to build the timeline.

### [compositions/mondrian-captions.html]

**Status**: COMPLIANT

**Issues Found**:

- **Note**: The script dynamically creates DOM elements based on a static `TRANSCRIPT` array. This is acceptable within a composition as long as the logic is deterministic and the composition itself is registered in `window.__timelines`.

## Recommendations

1. **Deterministic Captions**: Ensure the `TRANSCRIPT` array remains static and the logic for grouping words is consistent across all environments.
2. **Track Overlap Check**: The current track assignments (Track 1: BG, Track 2: Video, Track 3: Colors, Track 4: Captions) are well-organized and prevent overlap.
