muapi-youtube-shorts-e3cc05 — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited muapi-youtube-shorts-e3cc05 (Agent Skill) and scored it 45/100 (orange). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 1 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 1 flagged
A base64 string of 128+ characters appears in a documentation file. Encoded prompt injection hides the hostile instruction in base64 — invisible to keyword filters — and relies on the agent's ability to decode it at runtime. There is no normal authoring reason to embed a multi-hundred-byte base64 blob in skill docs.
*.sig, SIGNATURES) outside the documentation.Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
Long video → ranked vertical short clips, tuned for short-form social.
This skill is a platform-aware preset over the AI Clipping primitive. It picks the right aspect ratio and clip count for the target platform and delegates highlight extraction, dedupe, and face-tracked auto-crop to muapi.ai's managed /ai-clipping endpoint.
Reference implementation: https://github.com/SamurAIGPT/AI-Youtube-Shorts-Generator Underlying API: https://muapi.ai/playground/ai-clipping
| Use this skill when… | Use AI Clipping directly when… |
|---|---|
| Target is YouTube Shorts / TikTok / Reels | You want full control over aspect / count |
| You want platform-tuned defaults | You want raw timestamps (--coords-only) |
You'd rather pass --platform tiktok than think about ratios | You're integrating into a custom renderer |
| Input | Default | Notes | |||
|---|---|---|---|---|---|
--source | — | YouTube URL, hosted mp4 URL, or local file | |||
--platform | shorts | shorts \ | tiktok \ | reels \ | feed (sets ratio + count defaults) |
--num-clips | platform default | Override clip count | |||
--aspect-ratio | platform default | Override aspect ratio |
If the user gave only a URL, run with platform defaults — don't block.
muapi-cli installed and authed (muapi auth configure)MUAPI_API_KEY availableThat's it. Transcription, highlight ranking, dedupe, and cropping all run server-side — no ffmpeg, no Python, no Whisper, no LLM keys needed locally.
bash library/social/youtube-shorts/scripts/run-youtube-shorts.sh \
--source "<YOUTUBE_URL>" \
--platform shorts \
--num-clips 5 \
--viewThe script:
--aspect-ratio / --num-clips aren't passed.muapi edit clipping (the /ai-clipping endpoint) with the chosen params.The /ai-clipping endpoint runs the full pipeline:
Each clip ships with score (0–100), opening hook line, and a one-sentence "why it works" reason.
| Platform | Flag | Aspect | Default clips | Notes |
|---|---|---|---|---|
| YouTube Shorts | --platform shorts | 9:16 | 3 | Hook in first 1s |
| TikTok | --platform tiktok | 9:16 | 5 | Higher energy, longer ok |
| Instagram Reels | --platform reels | 9:16 | 3 | Hook in first 1s |
| Instagram Feed | --platform feed | 1:1 | 3 | Static-feel works well |
Override any default with --aspect-ratio / --num-clips.
Single video, defaults:
bash run-youtube-shorts.sh --source "https://youtube.com/watch?v=VIDEO_ID"TikTok preset — 5 clips, view in player:
bash run-youtube-shorts.sh --source "<URL>" --platform tiktok --viewSquare Instagram feed clips:
bash run-youtube-shorts.sh --source "<URL>" --platform feed --num-clips 3Batch — `urls.txt` with one URL per line:
xargs -a urls.txt -I{} bash run-youtube-shorts.sh --source "{}"Async submit (returns request_id, poll later):
REQUEST_ID=$(bash run-youtube-shorts.sh --source "<URL>" --async --output-json - | jq -r '.request_id')
muapi predict wait "$REQUEST_ID" --download ./outputs{
"source_video_url": "...",
"shorts": [
{
"title": "The one mistake that cost me $50K",
"start_time": 124.3,
"end_time": 187.6,
"score": 92,
"hook_sentence": "Nobody talks about this, but it killed my first startup...",
"virality_reason": "Opens with a number + regret, peaks on a contrarian lesson",
"clip_url": "https://.../short_1.mp4"
}
]
}When reporting back, surface for each clip: rank, score, time range, title, hook, and clip URL.
9:16. The platform preset handles this; only override if you know why.request_id with muapi predict wait <id> rather than re-clipping.--poll-timeout and retry.muapi upload file and pass the returned URL.The skill is done when:
result.shorts has up to num_clips entries, each with a working clip_url.--output-json was set, the file exists and parses.~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.