Testing

by cartridge-gg

Update Storybook visual regression snapshots after intentional UI changes. Use when visual tests fail due to expected changes, or when asked to update snapshots.

by kenneth-liao

Generate a complete video plan with optimized title, thumbnail, and hook concepts based on research. Orchestrates specialized skills (youtube-title, youtube-thumbnail, youtube-video-hook) to create production-ready video plans. Use after research is complete or when the user wants to plan a new video.

by HoangNguyen0403

Standards for predictable state management using flutter_bloc, freezed, and equatable. Use when implementing BLoC pattern for state management in Flutter.

by HoangNguyen0403

Standards for automated service locator setup using injectable and get_it. Use when configuring dependency injection with injectable and get_it in Flutter.

by HoangNguyen0403

Functional error handling using Dartz and Either. Use when implementing functional error handling, Either monad, or failure types in Flutter.

by HoangNguyen0403

Optimization standards for rebuilds and memory. Use when optimizing Flutter widget rebuilds, reducing memory usage, or improving rendering performance.

by HoangNguyen0403

Security standards for Flutter applications based on OWASP Mobile. Use when applying OWASP Mobile security standards or securing a Flutter application.

by HoangNguyen0403

Principles for maintainable UI components. Use when building, refactoring, or reviewing Flutter widget implementations for maintainability.

by HoangNguyen0403

Modern layout and widget composition standards. Use when composing Flutter widget trees, managing layout constraints, or following idiomatic Flutter patterns.

by HoangNguyen0403

Development tools, linting, and testing for JavaScript projects. Use when configuring ESLint, Prettier, or test runners for JavaScript projects.

by HoangNguyen0403

Standards for scalable, modular NestJS backend architecture. Use when designing module boundaries, feature modules, or scalable NestJS architecture.

by HoangNguyen0403

Environment variables validation and ConfigModule setup. Use when validating environment variables with Joi/Zod or configuring ConfigModule in NestJS.

by HoangNguyen0403

Structured logging (Pino) and Prometheus metrics. Use when adding structured logging with Pino or Prometheus metrics to NestJS services.

by HoangNguyen0403

The 4 layers of caching in Next.js. Use when configuring request memoization, data cache, full-route cache, or router cache in Next.js.

by HoangNguyen0403

SSG, SSR, ISR, Streaming, and Partial Prerendering (PPR). Use when choosing a rendering strategy (SSG, SSR, ISR, PPR, or Streaming) in Next.js.

by HoangNguyen0403

Zero-runtime CSS strategies (Tailwind) and RSC compatibility. Use when implementing Tailwind CSS or zero-runtime styling compatible with React Server Components.

by nokonoko1203

Generate a self-review document before PR submission. Summarize the validity of modifications, existence of tests, and points of concern in Japanese.

by HoangNguyen0403

Modern TypeScript standards for type safety and maintainability. Use when working with types, interfaces, generics, enums, unions, or tsconfig settings.

by HoangNguyen0403

Development tools, linting, and build config for TypeScript. Use when configuring ESLint, Prettier, Jest, Vitest, tsconfig, or any TS build tooling.

by genlayerlabs

Setup Python virtual environment and run integration tests with gltest

by specula-org

TLA+ Trace Validation workflow. Use when: (1) validating if a trace matches a TLA+ spec, (2) debugging trace validation failures (TLC reports 'Temporal properties were violated' or validation stops unexpectedly), (3) fixing spec/trace inconsistencies after root cause is identified.

by genlayerlabs

Setup Python virtual environment and run unit tests with gltest

by sammcj

Applies a modified Fagan Inspection methodology to systematically resolve persistent bugs and complex issues. Use when multiple previous fix attempts have failed repeatedly, when dealing with intricate system interactions, or when a methodical root cause analysis is needed. Do not use for simple troubleshooting. Triggers after multiple failed debugging attempts on the same complex issue.

by sammcj

Acquire expert Rust developer specialisation in rust systems programming, memory safety, and zero-cost abstractions. Masters ownership patterns, async programming, and performance optimisation for mission-critical applications.

by georgeguimaraes

This skill should be used when the user asks to "add a database table", "create a new context", "query the database", "add a field to a schema", "validate form input", "fix N+1 queries", "preload this association", "separate these concerns", or mentions Repo, changesets, migrations, Ecto.Multi, has_many, belongs_to, transactions, query composition, or how contexts should talk to each other.

by neondatabase

Creates and manages ephemeral Neon databases for testing, CI/CD pipelines, and isolated development environments. Use when building temporary databases for automated tests or rapid prototyping.

by appautomaton

Write, configure, and run unit + integration tests using project-independent best practices; detect tooling; triage failures/flakes; keep a compact Testing State Capsule.