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Found 8,043 Skills
Use when implementing iOS 26 features (Liquid Glass, new SwiftUI APIs, WebView, Chart3D), deploying iOS 26+ apps, or supporting backward compatibility with iOS 17/18.
Commenting patterns that improve readability and maintainability.
Python backend implementation patterns for FastAPI applications with SQLAlchemy 2.0, Pydantic v2, and async patterns. Use during the implementation phase when creating or modifying FastAPI endpoints, Pydantic models, SQLAlchemy models, service layers, or repository classes. Covers async session management, dependency injection via Depends(), layered error handling, and Alembic migrations. Does NOT cover testing (use pytest-patterns), deployment (use deployment-pipeline), or FastAPI framework mechanics like middleware and WebSockets (use fastapi-patterns).
CSS architecture and styling expert with deep knowledge of modern CSS features, responsive design, CSS-in-JS optimization, performance, accessibility, and design systems. Use PROACTIVELY for CSS layout issues, styling architecture, responsive design problems, CSS-in-JS performance, theme implementation, cross-browser compatibility, and design system development. If a specialized expert is better fit, I will recommend switching and stop.
This skill should be used when the user asks about MJML syntax, components, or attributes, when writing or editing MJML email templates, when creating responsive email layouts, when troubleshooting MJML rendering issues, or when asking about email client compatibility.
Use when tests have race conditions, timing dependencies, or inconsistent pass/fail behavior - replaces arbitrary timeouts with condition polling to wait for actual state changes, eliminating flaky tests from timing guesses
System architecture skill for designing scalable, maintainable software systems. Covers microservices/monolith decisions, API design, DB selection, caching, security, and scalability planning.
Testing expert with comprehensive knowledge of test structure, mocking strategies, async testing, coverage analysis, and cross-framework debugging. Use PROACTIVELY for test reliability, flaky test debugging, framework migration, and testing architecture decisions. Covers Jest, Vitest, Playwright, and Testing Library.
This skill should be used when the user asks to "create Google Business posts", "GBP content calendar", "local SEO updates", "Google maps posts", or mentions Google Business Profile, local ranking, or map pack visibility. Creates high-impact local SEO content for Google Business Profiles.
World-class design systems architecture - tokens, components, documentation, and governance. Design systems create the shared language between design and engineering that makes products feel cohesive at any scale. Use when "design system, component library, design tokens, atomic design, style guide, theme, theming, design scale, component api, variant, figma tokens, style dictionary, design-system, tokens, components, theming, documentation, figma, accessibility, versioning" mentioned.
This skill should be used when the user asks "what is BRC-42", "what is MAP protocol", "what is AIP", "what is B protocol", "what are BSV standards", "what is SIGMA", "what is BAP", "what is paymail", "what is 1Sat Ordinals", "what is BSV-20", "what is STAS", "STAS token", "lookup BRC", "BitCom protocols", "what is bitcoin-auth", "what is bitcoin-backup", "what is bitcoin-image", "what is Bitcoin Schema", "ord schema type", "outpoint format", "what is ORDFS", or needs to understand BSV ecosystem standards, protocols, and specifications.
This skill should be used when the user asks to "review a script template", "audit a template", "check template implementation", "validate ts-templates code", or mentions reviewing BitCom templates like AIP, MAP, SIGMA, BAP. Validates ScriptTemplate implementations against best practices.