Unit Testing

Place test voice calls via Twilio. Use when testing voice features or debugging voice pipeline. Only works if twilio_place_call.py exists in branch.

Homeostatic sensor detecting requirements without implementation or test coverage. Scans for REQ-* keys in requirements docs and checks if they have corresponding code and tests. Use to find coverage gaps.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup

Optimizes ProAgentic development environment by cleaning port conflicts, Docker images, memory issues, and test artifacts. Performs aggressive port cleanup, Docker image optimization, memory monitoring, and system health diagnostics. Use before starting development, when app won't start with port errors, when system feels slow, or for weekly maintenance. Provides before/after metrics and health reports.

Specialized knowledge for working with Angular 19 and Nx in the Sentinel monorepo. Use when generating components, running tests/builds, or working with the frontend workspace structure.

Comprehensive Ruby and Rails code review using Sandi Metz rules and SOLID principles. Automatically runs rubycritic and simplecov, analyzes changed files in current branch vs base branch, identifies OOP violations, Rails anti-patterns, security issues, and test coverage gaps. Outputs REVIEW.md with VSCode-compatible file links. Use when reviewing Ruby/Rails code, conducting code reviews, checking for design issues, or when user mentions code review, pull request review, or code quality analysis.

Use this skill when contributing code to open source projects. The skill covers proper pull request creation, avoiding common mistakes that annoy maintainers, cleaning up personal development artifacts before submission, writing effective PR descriptions, following project conventions, and communicating professionally with maintainers. It prevents 16 common contribution mistakes including working on main branch, not testing before PR submission, including unrelated changes, submitting planning documents, session notes, temporary test files, screenshots, and other personal artifacts. Includes 3 Critical Workflow Rules that must NEVER be skipped: (1) Always work on feature branches, (2) Test thoroughly with evidence before PR, (3) Keep PRs focused on single feature. The skill includes automation scripts to validate PRs before submission, templates for PR descriptions and commit messages, and comprehensive checklists. This skill should be used whenever creating pull requests for public repositories, contributing

Write clear git commits with Conventional Commits format. Detects project conventions from history and config. Guides commit granularity. Use when: (1) Completing working code, (2) Code builds and tests pass, (3) Ready to save, (4) Before pushing, (5) After review feedback. Triggers: automatically when finishing commitable work that builds and passes tests.

Create feature-rich PHP enums following Laravel conventions with SCREAMING_SNAKE_CASE case names, backed enum values (string or int), helper methods for labels and comparisons, validation rules, and comprehensive Pest tests. Use this skill when converting hardcoded strings or magic numbers to type-safe enums, creating categorical data types like statuses, types, roles or categories, adding enum-based validation to forms or APIs, refactoring magic strings into structured types, or defining a fixed set of allowed values in your application. This skill applies when working on files in app/Enums/ directory, creating enum classes, adding enum casts to models, or implementing enum validation rules.

Code review best practices including review checklists (functionality, tests, documentation, security, performance), providing constructive feedback, automated checks integration, and handling review comments. Use when reviewing pull requests, providing code feedback, responding to review comments, or setting up review processes.

This skill should be used when the user asks to "write tests first", "use TDD", "test-driven development", "red green refactor", "test first", "add unit tests before code", "write regression test first", "safe refactor with tests", or when TDD mode is active and the user makes any coding request that affects behavior (features, bugs, refactors).

Research latest library documentation, industry best practices, and technical knowledge to automatically generate project-level skills. Use when asked to: (1) Research and create a skill for a library/framework, (2) Build a skill based on architectural patterns, (3) Generate skills from technical research, (4) Create domain-specific technical skills from web research, or (5) Any request combining research with skill creation.

Run Flutter tests and analyze results. Use when implementing game logic, fixing bugs, or validating changes. Triggers on "run tests", "test this", "verify", "check if it works".

Upgrade React applications to latest versions, migrate from class components to hooks, and adopt concurrent features. Use when modernizing React codebases, migrating to React Hooks, or upgrading to latest React versions.

A test skill for validation

ドキュメント・テスト品質レビュー - コメント品質、API仕様、テストの意味、カバレッジを統合評価

Use when writing or changing tests, adding mocks, or tempted to add test-only methods to production code - prevents testing mock behavior and production pollution

Patterns for testing pure functions using Deno's test framework. Covers unit tests, property-based testing, test organization, and assertion patterns. Use when writing tests. Includes script for generating test boilerplate.

Skill for PHP/Laravel backend development following project conventions. Use when creating or editing PHP code, models, services, controllers, tests, or any backend logic. Loads all backend rules from .claude/rules/backend/ and .claude/rules/dataclasses/.

Use when: making a mistake, breaking build/tests, realizing wrong approach, misunderstanding requirements, using wrong patterns, forgetting conventions, receiving correction from user, unexpected behavior, or any error situation