Skill UI

This utility uses ffmpeg's libass filter to permanently burn an SRT subtitle file into an MP4 video stream. It handles video re-encoding (H.264) while copying the audio track directly, ensuring high quality. Supports customization of font name, size, margin, and video encoding parameters (CRF, preset), making it essential for the final subtitling step in video content pipelines.

This utility reads the raw content of a UTF-8 text file and emits it verbatim to stdout. It is specifically designed for meta-skills that require round-tripping an artifact through disk, allowing users to manually edit structured files (like scripts or YAML) during review pauses. Unlike standard built-in readers that add line numbering, this method preserves the original bytes, making it suitable for downstream parsers.

A utility to render high-quality, static title or ending cards as PNG images. It supports centered headlines, optional subtitles, and configurable solid-color backgrounds. Crucially, it handles complex CJK fonts with glyph verification, ensuring robust and professional output without relying on LLMs or network connectivity. Ideal for generating consistent opening/closing visuals for short-form video content.

A powerful utility for programmatically controlling and monitoring interactive terminal sessions running within tmux. It allows users to send keystrokes, scrape full pane output history, navigate between panes/windows, and manage the lifecycle of long-running CLIs (like AI coding sessions). Essential for advanced scripting and reliable remote workflow automation, especially when dealing with stateful, interactive applications.

This powerful utility concatenates multiple numbered MP4 segments (e.g., 1_*.mp4, 2_*.mp4) into a single, cohesive video file. It supports optional fade transitions and normalizes video parameters, including resolution, FPS, and codec, ensuring a professional and unified output. It is ideal for stitching together short clips produced by automated workflows into a final reel or presentation.

This utility provides an extension point to inject custom query parameters into all live preview URLs generated by the Website Builder. Developers can use this to automatically append necessary data, such as signed tokens, tenant identifiers, or feature flags, ensuring the preview environment is fully configured for specific use cases. It supports complex async operations like fetching tokens from remote APIs.

A powerful utility that queries multiple free APIs (Pexels, Pixabay, Internet Archive, etc.) in a single query. It retrieves normalized, license-tagged results for real-world, historical, or archival images, videos, and GIFs, making it a peer to local semantic search and generative media tools. Includes specialized scripts for fetching and judging audio.

A comprehensive design guide for creating ultra-compact, high-utility user interfaces. Ideal for professional tools, financial dashboards, or IDEs where information density is paramount. Principles include compact layouts, monospace typography, high contrast dark themes, and maximizing functional pixels while minimizing whitespace.

A comprehensive skill for building beautiful, accessible, and production-ready user interfaces. It combines the modularity of shadcn/ui components (built on Radix UI), the utility-first flexibility of Tailwind CSS, and the visual power of canvas-based design systems. Use this skill for implementing complete design systems, creating responsive layouts, managing themes (including dark mode), and generating polished visual assets across multiple applications.

A comprehensive utility for building reusable, command-line scripts and utilities to interact with the Hugging Face API. It enables complex data workflows by allowing users to chain, pipe, and process data fetched from models, datasets, and various endpoints. Ideal for automation, enrichment, and advanced data pipelines.

This utility detects and redacts sensitive personally identifiable information (PII) from screenshots and images. It can mask various data types, including IDs, credit card numbers, API keys, phone numbers, and emails. Crucially, all processing is conducted locally and offline, ensuring that sensitive data never leaves the user's machine. It is essential for secure debugging, data sharing, and analysis workflows.

rclone is a powerful, feature-rich command-line utility designed to manage files across diverse cloud storage backends, including S3-compatible services. It provides robust, reliable equivalents to core Unix commands (sync, copy, move, mount). Use this skill for all terminal-based cloud operations, such as syncing, backing up, downloading, or managing remote data securely.