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Animation best practices across easing, timing, properties, transforms, interactions, and accessibility for web interfaces. \n \n 43 rules organized by priority across 7 categories, from critical easing and timing decisions to medium-priority accessibility and polish \n Covers easing curves (ease-out default, custom cubic-bezier, spring animations), timing windows (300ms max for UI, 500ms for drawers), and property selection (transform and opacity only) \n Includes interaction patterns for gestu

Use this skills whenever you are dealing with Remotion code to obtain the domain-specific knowledge.

Select and implement the optimal Flutter animation strategy for your UI requirement. \n \n Includes a decision tree to choose between implicit animations, explicit tweens, physics-based motion, hero transitions, staggered sequences, and page route transitions \n Provides complete code examples for each animation type, from simple AnimatedContainer to complex staggered multi-tween setups \n Enforces strict memory management with mandatory AnimationController disposal and performance best practice

AI-assisted editing for real footage. Not generation from prompts. Editing existing video fast.

Programmable video production with Remotion, scene planning, asset orchestration, and automated rendering for brand-consistent content. \n \n Guides video creation through five structured steps: spec definition, scene outlining, asset preparation, React composition implementation, and QA rendering \n Supports multiple aspect ratios (16:9, 1:1, 9:16) and tones (fast, calm, cinematic) with integrated narration, visuals, and animations \n Includes scene templates, asset checklists, and Remotion com

Apply Disney's 12 principles to scroll-triggered motion.

Domain-specific knowledge base for building videos with Remotion and React. \n \n Covers 30+ rule files spanning animations, audio, assets, 3D content, charts, text, transitions, and composition management \n Includes specialized guidance for captions, FFmpeg operations, audio visualization, and sound effects integration \n Provides patterns for dynamic metadata calculation, media inspection (duration, dimensions, frame extraction), and parametrizable compositions \n Supports advanced features l

通过视觉/视频大模型分析视频内容，支持本地视频文件和互联网视频。

Download videos from YouTube and other platforms in multiple formats and quality levels. \n \n Supports quality selection from 480p to 4K, with format options including MP4, WebM, and audio-only MP3 \n Handles single videos, playlists, and batch downloads of multiple videos in one command \n Preserves metadata including title, description, and thumbnail with organized file naming \n Respects copyright and fair use; intended for personal, educational, and archival purposes only \n

Understand video content locally using ffmpeg for frame extraction and Whisper for transcription. Fully offline, no API keys required.