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React
Core React 19 patterns including hooks, Suspense, lazy loading, component structure, TypeScript best practices, and performance optimization. Use when working with React components, hooks, lazy loading, Suspense boundaries, or React-specific TypeScript patterns.
blencorptesting
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Review
This skill reviews PRs using comprehensive criteria across security, correctness, performance, accessibility, i18n, and code quality to speed up reviews.
frontendcode-reviewtestingsecurity
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Ruby On Rails Best Practices
This skill helps you apply Basecamp's Ruby on Rails best practices to structure models, controllers, jobs, and concerns for maintainable code.
backendrailscode-reviewrefactor
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Secondbrain Search
This skill should be used when the user asks to "search secondbrain", "find in knowledge base", "look up documentation", "search notes/ADRs/tasks", "find related content", "semantic search", or mentions wanting to find specific content across their secondbrain using natural language.
sergio-bershadskytesting
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Superplan
Use when starting significant features, epics, or complex tasks. Creates multi-phase implementation plans with parallelizable phases, poker estimates, TDD-first acceptance criteria, and quality gates. Detects tech stack from CLAUDE.md/AGENTS.md (bypassing internet research if complete) or via codeba
adamos486testing
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Swift Concurrency
This skill helps you master Swift 6 concurrency, async/await, actors, and MainActor to write safe, scalable, and race-free code.
performancedebuggingrefactormigration
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Telegram Dev
This skill helps you build Telegram bots, mini apps, and clients with practical guidance on Bot API, Webhooks, payments, and TDLib.
apibackendfullstackautomation
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Test Driven Development
Use when implementing features/bugfixes to enforce strict TDD discipline - enforces RED (write failing test), GREEN (minimal code), REFACTOR cycle with no exceptions. Prevents "test after" trap, catches rationalizations. Activates when user says "implement", "let's code", "write this feature", menti
xbklairithtesting