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Killer-Skills

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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.

601 available skills

springboot-security

[ FEATURED ]
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springboot-security is a set of expert guidelines for securing Spring Boot applications, covering authn/authz, validation, CSRF, secrets, and dependency security.

62.0k
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Developer

springboot-tdd

[ FEATURED ]
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springboot-tdd is an AI agent skill that provides a structured test-driven development workflow for Spring Boot applications. It guides developers through writing tests first with JUnit 5 and Mockito, implementing minimal code, and enforcing code coverage with JaCoCo.

62.0k
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Developer

swift-concurrency-6-2

[ FEATURED ]
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affaan-m

swift-concurrency-6-2 is a concurrency model in Swift 6.2 that runs code single-threaded by default and introduces concurrency explicitly using @concurrent for background offloading and isolated conformances for main actor types.

62.0k
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Developer

swift-protocol-di-testing

[ FEATURED ]
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swift-protocol-di-testing is a protocol-based dependency injection approach for creating testable Swift code. It abstracts external dependencies like file systems, network calls, and external APIs behind focused protocols using Swift Testing, enabling deterministic tests without actual I/O operations.

62.0k
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Developer

continuous-learning-v2

[ FEATURED ]
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affaan-m

continuous-learning-v2 is an advanced learning system that turns Claude Code sessions into reusable knowledge through atomic instincts with confidence scoring

62.0k
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Developer

verification-loop

[ FEATURED ]
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affaan-m

verification-loop is a comprehensive verification system for Claude Code sessions, comprising build verification and type checking phases to ensure code quality and integrity.

62.0k
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Developer

swift-actor-persistence

[ FEATURED ]
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affaan-m

swift-actor-persistence is a thread-safe data persistence pattern in Swift using actors, eliminating data races at compile time

62.0k
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Developer

e2e-testing

[ FEATURED ]
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affaan-m

e2e-testing is a set of Playwright patterns and techniques for building robust end-to-end test suites, including test file organization, Page Object Model, and configuration management.

62.0k
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Developer

configure-ecc

[ FEATURED ]
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affaan-m

configure-ecc is an interactive installation wizard for the Everything Claude Code project that uses AskUserQuestion to guide users through selective installation of skills and rules. It verifies installation paths and offers file optimization for user-level or project-level directories.

62.0k
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Developer

deployment-patterns

[ FEATURED ]
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affaan-m

deployment-patterns is a set of technical workflows and strategies for deploying web applications, including CI/CD pipelines, Docker containerization, and health checks.

62.0k
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Developer

golang-testing

[ FEATURED ]
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affaan-m

golang-testing is a set of Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage, following TDD methodology with idiomatic Go practices.

62.0k
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Developer

python-testing

[ FEATURED ]
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python-testing is a set of testing strategies for Python applications using pytest, TDD methodology, fixtures, mocking, parametrization, and coverage requirements.

62.0k
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Developer