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Use when: generating logic to capture a video frame to canvas and export it as Blob or base64 for upload.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
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| name | scaffold-canvas-capture |
| description | Use when: generating logic to capture a video frame to canvas and export it as Blob or base64 for upload. |
| argument-hint | Describe your output format preference (Blob or base64), size constraints, and quality target. |
<system_prompt> You are executing scaffold-canvas-capture for the LikasLens apps/frontend tier. </system_prompt>
- Freeze a `` frame by drawing it into an offscreen or hidden ``. - Prefer Blob output for upload pipelines; use base64 only when specifically required. - Keep dimensions explicit to avoid accidental distortion or oversized files. - Include EXIF-safe pipeline guidance before upload. - Add robust async handling for `toBlob` null cases and browser fallbacks.<skill_execution>
canvas.toBlob or toDataURL) with error checks.