Names the domain (videos) and some actions (extract frames, short clips), and mentions the tool (ffmpeg), but doesn't list more comprehensive actions like specifying time ranges, output formats, or frame rate selection.

Describes what the skill does but has no explicit 'Use when...' clause or equivalent trigger guidance, which per the rubric should cap completeness at 2, and the 'what' is also fairly thin, bringing it closer to 1.

Includes relevant keywords like 'frames', 'clips', 'videos', and 'ffmpeg' which users might naturally say, but misses common variations like 'screenshot from video', 'thumbnails', 'video extraction', 'keyframes', or file extensions like '.mp4', '.avi'.

The combination of ffmpeg, video frames, and clips creates a clear niche that is unlikely to conflict with other skills. This is a very specific use case that wouldn't overlap with general video editing or document processing skills.

Very lean and efficient. No unnecessary explanations of what ffmpeg is or how video formats work. Every line serves a purpose.

Provides concrete, copy-paste ready bash commands with clear flag usage (--time, --out) and practical examples at different use cases (first frame, specific timestamp).

This is a simple, single-purpose skill (extract a frame). The single action is unambiguous with clear examples. No multi-step or destructive operations require validation checkpoints.

For a simple skill under 50 lines with no need for external references, the content is well-organized with a quick start section and concise notes. The structure is appropriate for the scope.