Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add iamzhihuix/happy-claude-skills --skill video-processorgit clone --depth 1 https://github.com/iamzhihuix/happy-claude-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/iamzhihuix/happy-claude-skills/video-processor)<a href="https://agentmods.dev/skills/iamzhihuix/happy-claude-skills/video-processor"><img src="https://agentmods.dev/badge/skills/iamzhihuix/happy-claude-skills/video-processor/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/iamzhihuix/happy-claude-skills/video-processor"><img src="https://agentmods.dev/badge/skills/iamzhihuix/happy-claude-skills/video-processor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00068 | $0.02454 |
| Opus 5.5 | $0.00027 | $0.00982 |
| Sonnet 5.5 | $0.00014 | $0.00491 |
| Haiku 4.5 | $0.00007 | $0.00245 |
Grade A, and why
video-processor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- Video Processor — 89% identical, 105 lines differ
How it starts
The opening of the file, as written. The whole thing — 299 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Video Processor
Instructions
This skill provides comprehensive video processing utilities including YouTube video download, audio extraction, format conversion, and audio transcription using yt-dlp, FFmpeg, and OpenAI's Whisper model.
Prerequisites
Required tools (must be installed in your environment):
-
yt-dlp: Video downloader for YouTube and thousands of other sites
# Install via pip pip install -U yt-dlp # Verify installation yt-dlp --version -
FFmpeg: Multimedia framework for video/audio processing
# macOS brew install ffmpeg # Ubuntu/Debian apt-get install ffmpeg # Verify installation ffmpeg -version -
OpenAI Whisper: Speech-to-text transcription model
# Install via pip pip install -U openai-whisper # Verify installation whisper --help
Python packages (included in script via PEP 723):
- click (CLI framework)
- ffmpeg-python (Python wrapper for FFmpeg)
- yt-dlp (video downloader)
Workflow
Use the scripts/video_processor.py script for all video processing tasks. The script provides a simple CLI with the following commands:
0. Download Video from YouTube or Other Platforms (NEW!)
Download videos from YouTube and thousands of other supported websites:
# Download video
uv run .claude/skills/video-processor/scripts/video_processor.py download "https://youtube.com/watch?v=..." output.mp4
# Download audio only (as MP3)
uv run .claude/skills/video-processor/scripts/video_processor.py download "https://youtube.com/watch?v=..." --audio-only
# Show video info without downloading
uv run .claude/skills/video-processor/scripts/video_processor.py download "https://youtube.com/watch?v=..." --info
# Download with subtitles
uv run .claude/skills/video-processor/scripts/video_processor.py download "https://youtube.com/watch?v=..." output.mp4 --subtitle
Options:
--audio-only: Download audio only (extracts to MP3)--subtitle: Download and embed subtitles (supports en, zh-Hans, zh-Hant)--info: Show video information without downloading--format: Specify video format preference (default: best quality)
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 299 lines · 68 tokens per session scan A 223697f81994
video-processor is a skill published in the GitHub repository iamzhihuix/happy-claude-skills (306 stars, last pushed 6mo ago), licensed MIT. It adds 68 tokens to every session and 2,454 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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