Layout Safety Review

Use this after a video has been rendered and, when available, after the render has produced a .layout.json sidecar. The goal is to catch visual layout failures that normal metadata checks miss.

This skill owns:

• sampled frame inspection for layout safety
• optional OCR over sampled frames
• safe-zone and caption-zone overlap checks
• layout annotation pair overlap checks
• layout-safety.report.json

Inputs

Use a rendered video path. Add layoutPath when the producer can emit layout annotations:

{
  "videoPath": "./output/final.mp4",
  "layoutPath": "./output/final.layout.json",
  "outputDir": "./output/review",
  "samplingMode": "hybrid",
  "runOcr": true
}

samplingMode may be uniform or hybrid. Use hybrid for short-form videos because it samples both timeline coverage and visually interesting moments. runOcr defaults to true.

layoutPath should be a producer-owned sidecar when available. For Remotion, HTML, SVG, or canvas renders, ask the producing agent to emit named boxes for primary subject, cards, captions, UI, decorative elements, and platform chrome so the reviewer can tell whether overlap is intentional or a real defect.

Outputs

The runner writes layout-safety.report.json in outputDir when supplied, or next to the video/review artifacts when the harness resolves an output directory. The report includes sampled frames, layout annotations, OCR boxes, issues, thresholds, and an overall status.

Review Rules

Fail or send back the render when:

• captions overlap primary subject, gameplay seams, post cards, or UI regions
• important layout boxes are cropped outside the frame
• two producer-declared layout boxes overlap more than the configured threshold
• OCR text lands in platform chrome or unsafe margins
• the report has layout issues and the video is intended as a showcase example

Warn when evidence is weak: missing layout sidecar, sparse OCR, too few sampled frames, or generated visuals that are hard to classify. A warning is not a pass for showcase videos; inspect the frames manually.

Sequencing Guidance

Run after review-bundle or directly after render. Pair with storyboard-extract/storyboard-ocr when the question is not only geometric layout but whether visible text or UI content is correct.

Run package-review-prompt after this skill when delegating review to another agent. The prompt will surface layout-safety.report.json and make it the next artifact to inspect when the report is failing or warning.

For content-machine, prefer using producer .layout.json sidecars from Remotion/HTML/SVG renders. For demo-machine, use it as evidence feeding the local quality.json; do not replace demo-specific selector or narration-order checks.

Failure Modes

Without a layout sidecar, the runner can still sample frames and run OCR, but it cannot know producer intent. If OCR is unavailable or low confidence, inspect the sampled frames directly before concluding text placement is safe.

Repo-side runner:

node --import tsx scripts/harness/layout-safety-review.ts

Installed-pack runner:

node ./.video-evaluator/agent/run-tool.mjs layout-safety-review