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Browse and install thousands of AI Agent skills in the Killer-Skills directory. Supports Claude Code, Windsurf, Cursor, and more.

This directory brings installable AI Agent skills into one place so you can filter by search, category, topic, and official source, then install them directly into Claude Code, Cursor, Windsurf, and other supported environments.

3407 available skills

python-monitoring-trace

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ahupp

python-monitoring-trace is a Python script monitoring tool that enables developers to run, list, and filter events, and write logs to a file or stdout.

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Developer

dotnet

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PinedaTec-EU

dotnet is a .NET framework skill that provides a set of guidelines and tools for building AI agents, following SOLID principles and descriptive variable naming

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Developer

openspec-onboard

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jaxxstorm

openspec-onboard is a skill that assists in initializing and setting up OpenSpec in a project, walking users through a complete workflow cycle.

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Developer

playwright-testing

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chongdashu

playwright-testing is a vibe-coded implementation of an RPG platformer that enables reliable frontend testing through observability and nondeterminism elimination.

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Developer

book-sft-pipeline

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goodnight000

book-sft-pipeline is a complete system for converting books into SFT datasets and training style-transfer models, supporting text segmentation pipelines for long-form content.

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Developer

bug-fixer

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blahami2

bug-fixer is an AI agent skill that diagnoses and fixes bugs in code with automated regression tests, following precise and accurate rules.

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Developer

chatgpt-bridge

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yusuke124358

chatgpt-bridge is a skill that generates machine-readable JSON output, following specific rules and protocols for efficient data exchange and processing.

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Developer

contract-checker

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Nepopams

contract-checker is a skill that validates JSON fixtures against predefined schemas, ensuring data integrity and consistency.

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Developer

000-TnR-Absolute-Rigor

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MykhailoDmytriakha

000-TnR-Absolute-Rigor is a verification doctrine that ensures certainty through rigorous cognitive labor, eliminating residual uncertainty in project development.

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Developer

openai-knowledge

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yuichi176

openai-knowledge is a skill that utilizes the OpenAI Developer Documentation MCP server to retrieve exact documentation, enabling AI agents to provide accurate and reliable information.

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Developer

python-cli-typer

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narumiruna

python-cli-typer is a Python library for constructing command-line interfaces using Typer, emphasizing explicit and testable entry points.

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Developer

tanstack-start-d3-charting

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AndyMarigoldLabs

tanstack-start-d3-charting is a skill that combines TanStack Start with D3 charting, providing a framework for building server-side rendered (SSR) charts with precise control over data visualization.

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Developer