practices▌

Simple, pragmatic, opinionated. Only what matters for writing production-grade SQLAlchemy and Alembic code.

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Guidelines for building high-quality Expo React Native applications with JavaScript, focusing on clean code, modularity, and performance.

Comprehensive performance optimization guide for Framer Motion animations in React applications. Contains 42 rules across 9 categories, prioritized by impact to guide automated refactoring and code generation.

Comprehensive best practices guide for Shopware 6.6+ development, designed for AI agents and LLMs helping agency developers. Contains 77 rules across 22 categories, prioritized by impact to guide automated refactoring and code generation.

End-to-end testing focused on real user behavior, minimal mocking, and avoiding component unit tests. \n \n Prioritizes E2E tests over unit tests; reserves unit tests for pure functions only \n Emphasizes accessible selectors (role-based, label-based) over CSS selectors and test IDs in E2E tests \n Recommends writing E2E tests instead of heavily mocked unit tests; suggests 3+ mocks as a signal to switch approaches \n Includes rules for test structure, selector strategy, and when to apply each te

Native TypeScript support in Node.js with type stripping, async patterns, error handling, and production best practices. \n \n Covers type stripping (Node.js 22.6+) for running .ts files directly without build tools; includes tsconfig.json setup and import extension rules \n Provides patterns for error handling, graceful shutdown, async/await, streams, and module resolution across the full Node.js stack \n Includes diagnostic workflows for flaky tests, profiling slow paths, and performance optim

Cloudflare Workers code review and authoring against production best practices. \n \n Retrieves latest Workers APIs, types, and wrangler configuration schema before reviewing or writing code; biases towards live documentation over pre-trained knowledge \n Covers 40+ best practice rules across configuration, request/response handling, architecture, observability, code patterns, and security \n Flags 15+ common anti-patterns including unbounded streaming, floating promises, global request state, h

Best practices and patterns for Manim Community Edition, the Python animation engine for mathematical visualizations. \n \n Covers Scene structure, mobject types, 15+ animation classes, and LaTeX/MathTex rendering with color control \n Includes 3D support via ThreeDScene, camera manipulation, updaters with ValueTracker, and coordinate systems (Axes, NumberPlane) \n Provides organized rule files for core concepts, text/math, styling, positioning, timing, and CLI usage with quality flags \n Includ