Download video and audio from YouTube and 1000+ sites using yt-dlp. No API keys needed. Use when: (1) Downloading a video from YouTube or other sites, (2) Extracting audio from a video URL, (3) Downloading subtitles/captions from a video, (4) Getting video metadata without downloading.
Edit videos locally using ffmpeg. Trim, concat, resize, speed, overlay, extract audio, compress, and convert. Use when: (1) Trimming or cutting video segments, (2) Concatenating multiple clips, (3) Resizing video for social platforms, (4) Extracting or replacing audio, (5) Compressing video, (6) Converting video formats, (7) Getting video info.
Swap faces in a video using AI via the HeyGen API. Use when: (1) Replacing a face in a video with another face, (2) Face swapping from a source image onto a target video, (3) Creating personalized videos by swapping in a person's face, (4) Working with HeyGen's /v1/workflows/executions endpoint for face swap processing.
ffmpeg patterns for extracting audio from video files and transcoding between formats
opustags and ffmpeg patterns for applying metadata to audio and video files
Patterns for finding, processing, and embedding cover artwork into media files
Use this skill when working with audio, sound, music, UAudioComponent, PlaySoundAtLocation, SoundCue, MetaSound, attenuation, submix, concurrency, SFX, or spatial audio in Unreal Engine. See references/audio-setup-patterns.md for music system and ambient soundscape architectures. For VFX audio synchronization, see ue-niagara-effects.
Image, Font, Script, and Metadata optimization strategies.
Optimizes Three.js rendering performance. Use when rendering large numbers of objects, optimizing frame rates, implementing streaming, or managing memory in voxel/block-based scenes.
Testing image processing pipelines including format conversion, resize quality, metadata handling, watermark verification, and thumbnail generation.
Audio forensics and voice recovery guidelines for CSI-level audio analysis. This skill should be used when recovering voice from low-quality or low-volume audio, enhancing degraded recordings, performing forensic audio analysis, or transcribing difficult audio. Triggers on tasks involving audio enhancement, noise reduction, voice isolation, forensic authentication, or audio transcription.
VHS terminal recording best practices from Charmbracelet (formerly charmbracelet-vhs). This skill should be used when writing, reviewing, or editing VHS tape files to create professional terminal GIFs and videos. Triggers on tasks involving .tape files, VHS configuration, terminal recording, demo creation, or CLI documentation.
Access YouTube video data — transcripts, metadata, channel info, search, and playlists. A lightweight alternative to Google's YouTube Data API with no quota limits. Use when the user needs structured data from YouTube videos, channels, or playlists without dealing with Google API setup, OAuth, or daily quotas.
Browse YouTube playlists and fetch video transcripts. Use when the user shares a playlist link, asks "what's in this playlist", "list playlist videos", "browse playlist content", or wants to work with playlist videos and get their transcripts.
Access YouTube video data — transcripts, metadata, channel info, search, and playlists. A lightweight alternative to Google's YouTube Data API with no quota limits. Use when the user needs structured data from YouTube videos, channels, or playlists without dealing with Google API setup, OAuth, or daily quotas.
Browse YouTube playlists and fetch video transcripts. Use when the user shares a playlist link, asks "what's in this playlist", "list playlist videos", "browse playlist content", or wants to work with playlist videos and get their transcripts.
Search YouTube for videos and channels, search within specific channels, then fetch transcripts. Use when the user asks to "find videos about X", "search YouTube for", "look up a channel", "who makes videos about", "find on youtube", or wants to discover YouTube content on a topic.
Search YouTube for videos and channels, search within specific channels, then fetch transcripts. Use when the user asks to "find videos about X", "search YouTube for", "look up a channel", "who makes videos about", "find on youtube", or wants to discover YouTube content on a topic.
Advanced video analysis and selection skill with AI-powered automatic scoring. Integrates Walter Murch's rules and dynamic weighting for professional-grade curation. Supports Bilibili, YouTube, Douyin (抖音), and Xiaohongshu (小红书). Use this skill whenever the user wants to analyze videos, score or rate scenes, extract best shots/highlights, evaluate video quality, curate clips, do competitor video analysis, or mentions terms like "视频分析", "镜头筛选", "场景评分", "视频拆解", "精选片段", "视频质量", "镜头打分", "素材挑选" — even if they don't explicitly ask for "expert analysis".
Record and transcribe audio to a markdown file using whisper.cpp (mic + system audio)
Python bridge to ImageJ2/Fiji enabling macro execution, plugin calls (Bio-Formats, TrackMate, Analyze Particles), bidirectional NumPy↔ImagePlus/ImgLib2 data exchange, and ImageJ Ops from Python. Use for automating Fiji-specific workflows headlessly from Python scripts. Use scikit-image instead for pure Python pipelines that do not require Fiji plugins; use napari for interactive visualization.
Pure Python DICOM library for medical imaging (CT, MRI, X-ray, ultrasound). Read/write DICOM files, extract pixel data as NumPy arrays, access/modify metadata tags, apply windowing (VOI LUT), anonymize PHI, build DICOM from scratch, process series into 3D volumes. For whole-slide pathology images use histolab; for NIfTI neuroimaging use nibabel.
Computer vision library for bio-image preprocessing, feature detection, and real-time microscopy analysis. Performs color space conversion, morphological operations, contour/blob detection, template matching, and optical flow on fluorescence and brightfield images. 10-100× faster than pure Python implementations using optimized C++ kernels. Use scikit-image for scientific morphometry and regionprops; use OpenCV for real-time processing, video, and classical feature extraction pipelines.
