Browse and install thousands of AI Agent skills in the Killer-Skills marketplace. Supports Claude Code, Windsurf, Cursor, and more.
Discover the world's most comprehensive directory for AI Agent Skills and community-driven MCP Servers (Model Context Protocol). Seamlessly find and install high-quality developer integrations for your Claude Desktop, Cursor, or custom AI agents. From cloud operations to API integrations, explore verified open-source MCP practices to supercharge your AI workflows.
n8n-conventions is an AI Agent skill that acts as a quick reference guide for n8n workflow automation platform development. It provides instant access to mandatory TypeScript patterns, error handling standards, and links to full architectural documentation for developers.
webapp-testing is a toolkit for interacting with and testing local web applications using Playwright, supporting features like browser screenshot capture and log viewing.
using-superpowers is an AI agent skill that mandates compulsory Skill tool invocation in Claude Code when any applicable skill is detected. It establishes non-negotiable technical protocols requiring skill loading and direct implementation before generating responses, including clarifying questions.
Verification-before-completion is a core principle that mandates running verification commands and confirming output before claiming work is complete or passing
Database-migrations is a set of best practices for managing schema changes, data migrations, and rollbacks in production systems, ensuring minimal downtime and data integrity.
eval-harness is a formal evaluation framework for Claude Code sessions, implementing eval-driven development principles for AI-assisted workflows.
postgres-patterns is an AI Agent skill for PostgreSQL that provides quick-reference patterns for query optimization, B-tree indexing, schema design, and implementing Row Level Security. It's designed for developers writing SQL queries or migrations and troubleshooting performance.
Remotion is a programmatic video generation tool that creates professional presentations from app designs with features like zoom effects and contextual text overlays.
sred-work-summary is a skill that automates the creation of a Notion document grouping relevant links into projects for SRED project documentation purposes.
extract-errors is a skill that assists in extracting and managing error codes in React applications using yarn extract-errors command.
fix is a technical skill that resolves lint errors, formatting issues, and ensures code quality in declarative, frontend, and UI projects
Flow is a type checking system for JavaScript, used to validate React code and ensure consistency across applications