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This skill provides comprehensive knowledge for integrating Clerk authentication in React, Next.js, and Cloudflare Workers applications. It should be used when setting up user authentication, implementing protected routes, verifying JWT tokens, creating custom JWT templates with user metadata and organization claims, configuring Clerk middleware, integrating with shadcn/ui components, testing auth

Gera um novo hook React personalizado com um arquivo de teste Vitest. Use esta skill ao criar um hook ou extrair lógica React reutilizável para um hook `use*`.

Session-persistent browser automation via Playwright CLI — form filling, screenshots, data extraction, multi-step flows. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, or extract information across multiple requests. NOT for AI-driven long-autonomous flows (see mk:agent-browser); NOT for generating .spec.ts E2E code (see

Resolve specific ESLint errors and warnings that appear in this project. Use when fixing lint failures, ESLint reported issues, or autofix conflicts (e.g. no-void, canonical/export-specifier-newline vs prettier, no-shadow trailing underscores, sonarjs/deprecation, you-dont-need-lodash-underscore, testing-library/prefer-screen-queries, testing-library/await-async-events, jest-dom/prefer-*).

A valid skill for testing purposes.

This skill should be used when building and testing iOS apps on the simulator using XcodeBuildMCP. It handles building, installing, launching, screenshot capture, and log analysis for iOS/macOS apps.

Post-implementation review — validates that code matches the original plan and launches parallel subagents for quality, security, and test coverage checks. Use after completing implementation or when user invokes /recheck. Primary value is plan-compliance verification plus multi-perspective parallel validation.

Invoke to set up CI/CD pipelines for game builds -- automated testing, build pipelines, and deployment to Steam, itch.io, or Epic. Triggers on: "CI", "CD", "pipeline", "automated build", "deploy", "Steam deploy", "itch.io butler", "GitHub Actions game", "build automation". Do NOT invoke for general code review (use game-code-review) or manual testing guidance (use game-qa-lead). Part of the AlterL

This skill should be used when autonomously iterating on test failures: runs the suite, diagnoses, applies minimal fixes, re-runs with checkpoint commit isolation until all tests pass.

Realize uma análise pós-mortem de desenvolvimento de jogos, seguindo a tradição da GDC. Esta skill é ativada por termos como "retrospectiva" ou "lições aprendidas", mas não para revisão de documentos de design ou playtesting.

Always load this skill when a pom.xml file exists in the project, when creating or editing a pom.xml, or when setting up Maven project structure in a new project. It provides Maven-specific conventions for running tests, building, managing dependencies, and project structure.

Designs analytics tracking implementations, event taxonomies, A/B test plans with statistical rigor, and attribution models for marketing measurement. Use pipeline-analyst for post-MQL sales pipeline metrics; use this agent for marketing analytics.