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Repurposes long-form video (podcasts, interviews, talks) into short-form vertical clips for Instagram Reels, TikTok, and YouTube Shorts. Handles transcription, moment selection, clip extraction, speaker-tracked reframing (16:9 to 9:16), and animated captions.
Passed 12 of 21 test cases with the skill, and 5 of 21 without it.
and 8 more in the full report
8 fixed5 passed either way9 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
Which default caption template ID should be supplied when posting a clip to Captions.ai if the user does not specify a preferred caption style?
| Checked | Without skill | With skill |
|---|---|---|
| Uses default template ID ctpl_DxflLOnuKkb198FNdI9E for Captions.ai processing | Missed | Passed |
The instructions your model reads when the skill loads.
Takes a long-form video and produces ready-to-post short-form vertical clips with speaker-tracked framing and professional animated captions. Works with podcasts, interviews, talks, and any talking-head content.
brew install ffmpeg on macOS, apt install ffmpeg on Linux)openai-whisper and requests packages (pip install openai-whisper requests). Note: openai-whisper installs PyTorch (~2GB download). This skill uses openai-whisper instead of the lighter whisper-cpp because it provides word-level timestamps needed for accurate viral moment scoring.brew install yt-dlp on macOS, pip install yt-dlp on Linux.env file (project root or any parent directory):
KLAP_API_KEY — from klap.app (reframing with speaker tracking)CAPTIONS_AI_API_KEY — from captions.ai / platform.mirage.app (animated captions)Before starting: Verify that FFmpeg, yt-dlp, and the Python packages are installed. If any are missing, instruct the user to install them before proceeding.
| Step | Cost |
|---|---|
| Whisper (transcription) | Free (local) |
| FFmpeg (clip extraction) | Free (local) |
| Klap (reframing) | ~$1.50-2.50/clip depending on plan |
| Captions.ai (captions) | ~$0.15/min of output |
| Total per clip | ~$2-3 |
The user provides:
Video source (required) — one of:
/path/to/podcast.mp4https://www.youtube.com/watch?v=...Moment selection mode (ask the user):
test cases passed, vs 5 / 21 without
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