Video-Watch

Analyze video content by extracting frames at regular intervals. Use when you need to understand what's in a video file, review video content, analyze scenes, or describe video without being able to play it directly. Supports MP4, MOV, AVI, MKV, and other common video formats.

Security Scan

The skill does what it claims (extract frames using ffmpeg) and its code is small and consistent with that purpose, with only minor metadata/wording issues to flag.

Purpose & Capability

Skill name/description match the included script and instructions: both focus on extracting frames from videos for analysis. Minor incoherence: registry metadata lists no required binaries while SKILL.md and the script clearly require ffmpeg/ffprobe.

Instruction Scope

SKILL.md gives concrete, narrow instructions to run the provided shell script and install ffmpeg if missing. It does not instruct reading unrelated files, sending data externally, or accessing unrelated environment variables. One wording ambiguity: it mentions 'read key frames using the `read` tool' (the word 'read' is ambiguous and could be clarified to mean an image viewer or an image-reading utility).

Install Mechanism

No install spec is provided (instruction-only plus a small script). The script itself is local and executed by the agent; no downloads or external installers are invoked by the skill. Risk from install mechanism is low.

Credentials

The skill requests no credentials or environment variables. It does require ffmpeg/ffprobe to be present (documented in SKILL.md) — this is proportional and expected for the stated functionality.

Persistence & Privilege

Skill does not request permanent/always-on presence, does not modify other skills or system-wide settings, and does not store credentials. Normal invocation privileges are used.

Assessment

This skill is a small, local tool to extract frames with ffmpeg and appears coherent with its description. Before installing/use: 1) Ensure ffmpeg/ffprobe is installed (SKILL.md mentions apt/brew installs); 2) Review the shell script (it is short and readable) and run it in a safe directory to avoid overwriting files; 3) Clarify the ambiguous instruction about the 'read' tool (it likely means an image viewer or image-processing tool); 4) Be cautious about processing sensitive videos — the script writes extracted frames to disk (no network exfiltration observed). If you want the registry metadata corrected, require that the skill declares ffmpeg as a required binary.

Video Analyzer

Analyze video files by extracting frames at 1-second intervals using ffmpeg, then examining the frames to understand the video content.

Prerequisites

Requires ffmpeg installed on the system. Install if missing:

# Ubuntu/Debian
sudo apt-get install -y ffmpeg

# macOS
brew install ffmpeg

Usage

Extract frames from video

scripts/extract_frames.sh <video_path> [output_dir] [fps]

Arguments:

• video_path (required): Path to the video file
• output_dir (optional): Directory for extracted frames. Default: creates frames_<video_name> in current directory
• fps (optional): Frames per second to extract. Default: 1 (one frame per second)

Example:

scripts/extract_frames.sh /path/to/video.mp4
scripts/extract_frames.sh /path/to/video.mp4 ./my_frames
scripts/extract_frames.sh /path/to/video.mp4 ./my_frames 2  # 2 frames per second

Output:

• Creates numbered frame images: frame_001.jpg, frame_002.jpg, etc.
• Prints video metadata (duration, resolution, frame count)

Workflow

1. Run extract_frames.sh on the video file
2. Read key frames using the read tool to view images
3. For comprehensive analysis, sample frames at regular intervals (e.g., every 5th frame)
4. Describe what you see in each frame to build understanding of the video

Tips

• For short videos (<1 min): Review all frames
• For medium videos (1-5 min): Sample every 3-5 frames
• For long videos (>5 min): Sample every 10+ frames, focus on scene changes
• Look for: scene transitions, text/titles, UI elements, actions, characters