Skill Claude CodeCodex
End-to-end testing with Playwright using role-based locators, auto-waiting, network mocking, visual regression, fixtures for test isolation, parallel execution, CI integration, authentication state reuse, and trace viewer debugging. Use when building reliable browser automation tests that catch regressions before…
Skill Claude CodeCodex
Advanced PostgreSQL patterns including window functions, CTEs, JSONB operations, full-text search, partitioning, and performance optimization with EXPLAIN ANALYZE.
Skill Claude CodeCodex
Game programming architecture patterns with ECS, data-oriented design, state machines, object pools, and concrete implementations for scalable game systems.
Skill Claude CodeCodex
Migrate project folders while preserving Claude Code session data. Includes Python path normalization examples, symlink handling, and data migration workflows.
Skill Claude CodeCodex
Platform submission processes, certification requirements, and distribution across Steam, Epic, console, and mobile platforms.
Skill Claude CodeCodex
Modern Python 3.14+ development with strict type hints, ruff linting, uv package manager, async/await patterns, dataclasses vs Pydantic v2, pytest conventions, virtual environments, src layout project structure, and pyproject.toml configuration. Use when writing, reviewing, or scaffolding Python code.
Skill Claude CodeCodex
Expert React Native mobile development for iOS and Android. Covers Expo vs bare workflow, navigation patterns, performance optimization, native modules, and platform-specific code.
Skill Claude CodeCodex
Apply production Redis patterns including caching strategies, rate limiting, distributed locks, pub/sub, streams, and memory optimization with TypeScript and Go examples.
Skill Claude CodeCodex
Code refactoring patterns with before/after diffs for extract method, extract class, inline, move, rename, dead code removal, dependency injection, and code smell detection.
Skill Claude CodeCodex
Video creation in React using Remotion. Covers animations, compositions, audio sync, text effects, 3D integration with Three.js, and rendering. Use when building dynamic video generators, editing timelines, or optimizing Remotion renders.
Skill Claude CodeCodex
Idiomatic Rust development with ownership, borrowing, lifetimes, error handling (thiserror/anyhow), async Tokio patterns, traits, generics, Clippy linting, cargo workspaces, and production patterns for web services (axum/actix-web), CLI tools (clap), and systems programming. Use when writing, reviewing, or debugging…
Skill Claude CodeCodex
Build resilient web scrapers with Playwright and Puppeteer, handle anti-detection, proxy rotation, and structured data extraction.