Unit Testing

Create comprehensive E2E test plans with all major flows, pages, roles, and test scenarios

Use when writing Jest tests - covers testing patterns for interpreters, parsers, and async code

Complete Playwright test authoring workflow with Verdex MCP tools. Three phases - explore apps interactively to map user journeys, build stable role-first selectors via progressive DOM exploration, write idiomatic Playwright tests. Includes workflow discovery, selector patterns, and testing best practices.

Re-invoke agents to fix issues found during validation (style, tests, logic)

Modern PHP development best practices including PHP 8.x features, OOP patterns, error handling, security, testing, and performance optimization. Use when writing PHP code, reviewing PHP projects, debugging PHP issues, or implementing PHP features outside of WordPress/Laravel specific contexts.

Validate code changes by intelligently selecting and running the appropriate test suites. Use this when editing code to verify changes work correctly, run tests, validate functionality, or check for regressions. Automatically discovers affected test suites, selects the minimal set of venvs needed for validation, and handles test execution with Docker services as needed.

Systematic error diagnosis and debugging workflow for Rust code. Use when code isn't working, tests fail, or runtime errors occur.

Expert in Python development with focus on best practices, testing, and modern Python features

Guide for creating Claude Code plugins that bundle skills, agents, commands, hooks, and MCP servers for distribution. Covers plugin structure, marketplace.json format, installation, testing, and publishing. Use when the user wants to create plugins, distribute skills/agents, build marketplaces, or mentions creating/packaging/publishing plugins.

Network connectivity diagnostics including ping, DNS lookup, port scanning, and HTTP requests. Use when debugging network issues, checking connectivity, or testing endpoints.

Convert GitHub repositories into LLM-friendly text. Use when you need to analyze external codebases, research unfamiliar libraries, understand third-party project structure, or ingest code from GitHub URLs (public/private, supports subdirectories).

Run systematic growth experiments to increase acquisition, activation, retention, and revenue. Use when optimizing conversion funnels, running A/B tests, improving metrics, or when users mention growth, experimentation, optimization, or scaling user acquisition.

This skill uses the test-doubles-generator plugin to automatically create mocks, stubs, spies, and fakes for unit testing. It analyzes dependencies in the code and generates appropriate test doubles based on the chosen testing framework, such as Jest, Sinon, or others. Use this skill when you need to generate test doubles, mocks, stubs, spies, or fakes to isolate units of code during testing. Trigger this skill by requesting test double generation or using the `/gen-doubles` or `/gd` command.

Build, serve, and deploy the Hugo static site. Use when building the site, testing locally, checking for errors, or deploying to GitHub Pages.

Run local Go health checks (tests, coverage, lint) in Go repositories that contain go.mod/go.sum. Use when the user asks to run or interpret local Go test/coverage/lint workflows using tools like lazygotest, gocovsh, tparse, and golangci-lint. Do not use for Rust or non-Go projects.

This skill enables Claude to perform comprehensive accessibility audits. It uses the accessibility-test-scanner plugin to identify WCAG 2.1/2.2 compliance issues, validate ARIA attributes, check keyboard navigation, and assess screen reader compatibility. Use this skill when the user requests an accessibility scan, audit, or compliance check, or when terms like "WCAG", "ARIA", "screen reader", "accessibility testing", or "a11y" are mentioned. It provides actionable insights for improving web application accessibility.

Use when creating or editing skills, before deployment, to verify they work under pressure and resist rationalization - applies RED-GREEN-REFACTOR cycle to process documentation by running baseline without skill, writing to address failures, iterating to close loopholes

Comprehensive content strategy review from reader's perspective. Acts as Chief Web Editor + Technical Writer to audit site clarity, practical information completeness, instructional quality, information architecture, and inclusive accessibility. Tests from multiple reader personas including beginners, experienced users, and people with accessibility needs.

This skill automates API endpoint testing, including request generation, validation, and comprehensive test coverage for REST and GraphQL APIs. It is used when the user requests API testing, contract testing, or validation against OpenAPI specifications. The skill analyzes API endpoints and generates test suites covering CRUD operations, authentication flows, and security aspects. It also validates response status codes, headers, and body structure. Use this skill when the user mentions "API testing", "REST API tests", "GraphQL API tests", "contract tests", or "OpenAPI validation".

Designs and implements CI/CD pipelines for automated testing, building, and deployment. Trigger keywords: ci/cd, pipeline, github actions, gitlab ci, jenkins, deployment, workflow, automation.