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 bobmatnyc/claude-mpm-skills --skill media-transcodinggit clone --depth 1 https://github.com/bobmatnyc/claude-mpm-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/bobmatnyc/claude-mpm-skills/media-transcoding)<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/media-transcoding"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/media-transcoding/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/bobmatnyc/claude-mpm-skills/media-transcoding"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/media-transcoding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00028 | $0.00724 |
| Opus 5 | $0.00014 | $0.00362 |
| Sonnet 5 | $0.00006 | $0.00145 |
| Haiku 4.5 | $0.00003 | $0.00072 |
Grade A, and why
media-transcoding 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Media Transcoding (FFmpeg)
Overview
Use FFmpeg presets to normalize video outputs for web streaming, mobile delivery, or archival quality. Your hf-videos repo already includes a simple bash script and a more advanced Python script with presets, backups, and logging.
Quick Start (hf-videos)
./ffmpeg_convert.sh check
./ffmpeg_convert.sh web_standard "My Video.mp4"
./ffmpeg_convert.sh batch_web_standard
Outputs are written to converted/ with backups in backup/ and logs in conversion.log.
Preset Summary (hf-videos)
- web_standard: 1080p max, CRF 23, 128k audio,
+faststart - web_high: 1080p max, CRF 20, 192k audio
- mobile: 720p max, CRF 25, 96k audio
- ultra_compact: 480p max, CRF 28, 64k audio
- archive: original res, CRF 18, 256k audio
All presets use H.264 + AAC with +faststart for streaming-friendly MP4s.
Batch Workflow
- Run a single-file conversion first to validate output.
- Run batch conversion once the preset is confirmed.
- Verify output sizes and playback.
Batch commands:
./ffmpeg_convert.sh batch_web_standard
./ffmpeg_convert.sh batch_mobile
./ffmpeg_convert.sh batch_ultra_compact
Advanced Script (convert_video.py)
Use convert_video.py when you need:
- Progress monitoring
- Metadata inspection
- Overwrite control
- Preset listing and batch automation
python3 convert_video.py --list-presets
python3 convert_video.py --file "My Video.mp4" --preset web_standard
python3 convert_video.py --preset mobile --overwrite
Output Conventions
- Converted files use suffixes like
_web_standard. - Backups preserve original filenames.
- Logs go to
conversion.logfor audit and troubleshooting.
Troubleshooting
- FFmpeg missing:
brew install ffmpeg(macOS) or install from ffmpeg.org. - Permission errors:
chmod +x ffmpeg_convert.sh. - Disk pressure: clean
converted/andbackup/after validation.
Related Skills
toolchains/universal/infrastructure/docker
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.
- 7d ago First seen · 93 lines · 28 tokens per session scan A 254eb9e23887
media-transcoding is a skill published in the GitHub repository bobmatnyc/claude-mpm-skills (74 stars, last pushed 1mo ago), licensed MIT. It adds 28 tokens to every session and 724 once invoked, about $0.0001 per session on Opus 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 2026-09-03.
Other skills, from other repositories
video-streaming-expert
Expert in video streaming technologies, HLS, DASH, adaptive bitrate streaming, CDN delivery, DRM protection, and video encoding/transcoding. Use when the user mentions video, streaming, media, WebRTC, multimedia, or HLS, or when the task involves Streaming Protocols, Adaptive Bitrate Streaming, FFmpeg Video…
video-toolkit
Video operations - info, thumbnails, extract audio, compress, clip, convert.
ffmpeg-video-editor
A complete FFmpeg-powered video editing agent. Use this skill whenever the user wants to do anything with video or audio files — trimming, cutting, transcoding, resizing, concatenating, adding subtitles, overlaying images or text, applying color grades or LUTs, normalizing audio levels, creating transitions…
video-frames
Extract frames or short clips from videos using ffmpeg.
tiktok-transcribe
A workflow that downloads TikTok videos, turns their audio into text with speech-recognition software, and saves the result as a Markdown file.
frame-creative-voltage
Electric split with hand-drawn script — offset panels slide in, display title rises with an outlined word, script strokes itself in.