ComposioHQ

Save YouTube videos for offline viewing with full control over quality and format. Get the best available resolution or choose specific settings like 1080p, 720p, or extract audio as MP3.

Testing local web applications requires setting up servers, navigating pages, and verifying behavior. This toolkit provides Playwright automation scripts for browser testing, screenshot capture, and server lifecycle management so you can focus on writing tests.

Working with Excel files manually is time consuming and error prone. This skill automates spreadsheet creation, editing, and formula recalculation using standard Python libraries.

Create visually consistent presentations with professionally curated color palettes and font pairings. Save time by applying ready-made themes instead of designing from scratch.

This template provides a starting point for creating custom Claude skills. It includes a standardized format for defining skill metadata and instructions. Use this template to build new skills quickly.

Building animated GIFs for Slack is challenging due to strict size limits and format requirements. This skill provides validators to check Slack constraints, composable animation primitives, and utilities to create professional animated GIFs and emojis that meet platform specifications.

Teams struggle to share and discover Claude skills across members. This skill automates skill creation and notifies your team via Slack when new skills are ready. It ensures consistent structure and enables seamless collaboration on custom AI capabilities.

Creating skills from scratch requires understanding structure, naming conventions, and bundled resources. This skill provides step-by-step guidance and Python utilities to scaffold, validate, and package skills for distribution.

Running contests and giveaways requires transparent random selection. This skill uses cryptographic randomization to select winners fairly from participant lists.

Users need to create and edit PowerPoint presentations programmatically. This skill provides tools for HTML-to-PPTX conversion, slide manipulation, text inventory extraction, and OOXML editing for precise presentation control.

Need to extract data from PDFs, fill forms, or merge documents? Claude can read, create, and modify PDFs using Python libraries and command-line tools.

Understanding your communication habits helps you become a more effective leader and team member. This skill identifies patterns like conflict avoidance, filler words, and speaking ratios across all your meeting transcripts.

Building MCP servers from scratch is complex without guidance on protocol requirements, tool design patterns, and evaluation strategies. This skill provides a comprehensive workflow for creating production-ready MCP servers in Python or TypeScript, covering research, implementation, review, and evaluation phases.

Finding qualified leads requires hours of research across multiple sources. This skill automates lead discovery by analyzing your product, identifying matching companies, and providing prioritized contact strategies for each prospect.

Manual invoice organization takes hours of tedious work. This skill automates the process by reading invoices, extracting key data, renaming files to standard format, and sorting them into logical folders for tax season.

Claude needs consistent formats for writing internal communications. This skill provides templates and guidelines for common formats like 3P updates, company newsletters, and FAQ responses. Use these formats whenever asked to write internal company updates.

Messy folders waste time and create stress. This skill analyzes your files, finds duplicates, and organizes everything into logical structures based on type, purpose, and date.

Finding the perfect domain name takes hours of brainstorming and manual checking across multiple registrars. This skill generates relevant domain name ideas tailored to your project and checks availability across popular TLDs like .com, .io, .dev, and .ai.

Low-quality images and screenshots can ruin presentations and documentation. This skill improves image resolution, sharpness, and clarity with a single prompt.

This skill enables Claude to create, edit, and analyze Word documents. It handles tracked changes, comments, and formatting preservation for professional document workflows. Perfect for legal document review, academic editing, and business document automation.

Tracking your development progress and identifying skill gaps is difficult without structured feedback. This skill analyzes your Claude Code chat history to identify improvement areas and curates relevant learning resources from HackerNews.

Writing alone is hard. This skill transforms your writing process by providing a collaborative AI partner that researches topics, adds citations, improves hooks, and gives real-time feedback on each section as you write.

Competitor ad research requires manual browsing of multiple ad libraries. This skill automates the extraction and analysis process, identifying successful messaging patterns, pain points being targeted, and creative approaches that resonate with audiences.

Writing changelogs manually takes hours of work to translate technical commits into customer-friendly language. This skill automatically analyzes git history, categorizes changes, and creates polished release notes that users can understand.