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Best practices for full-stack React development with TanStack Start, covering server functions, middleware, SSR, and authentication. \n \n Organizes 31 rules across 10 categories (server functions, security, middleware, authentication, SSR, error handling, and more) with priority levels to guide implementation order \n Covers critical patterns for server-side logic, input validation, secure session management, and client-server boundary handling \n Includes middleware composition, selective SSR

31 Laravel 13 conventions and best practices across architecture, Eloquent, controllers, validation, security, and API design. \n \n Organized into 7 rule categories by priority, from critical architecture and database patterns to medium-impact performance and API design guidance \n Covers essential patterns including service classes, form requests, Eloquent models, migrations, eager loading, and event-driven architecture \n Includes 31 specific rules with prefixes (e.g., arch-service-classes ,

Comprehensive GDScript coding standards and architecture patterns for Godot 4.x game development. \n \n Covers naming conventions, static typing, node references, signal-driven architecture, and resource loading strategies with code examples \n Includes common game patterns: state machines, object pooling, and save/load systems with template implementations \n Provides quick-reference tables for preferred vs. anti-patterns, export annotations, and script structure ordering \n Identifies 10+ comm

Node.js architecture and framework selection guidance based on deployment context and project requirements. \n \n Framework decision tree covers Hono (edge/serverless), Fastify (performance), NestJS (enterprise), and Express (legacy), with selection criteria tied to cold start time, ecosystem size, and team experience \n Covers layered architecture principles (controller, service, repository), async patterns (async/await vs Promise.all/allSettled), and centralized error handling with appropriate

When running Playwright tests from Claude Code or any CLI agent, always use minimal reporters to prevent verbose output from consuming the context window.

Decision guide for Stripe API selection, Connect setup, billing, and integration patterns. \n \n Routes integration decisions across six domains: one-time payments (Checkout Sessions), custom payment forms (Payment Element), saved payment methods (Setup Intents), marketplaces (Accounts v2), subscriptions (Billing APIs), and embedded financial accounts (Treasury) \n Provides reference documentation for each integration type, including API version guidance (latest: 2026-02-25.clover) and pre-launc

Software Mansion's production patterns for React Native apps on the New Architecture.

45 React and Next.js performance rules organized by impact, from eliminating waterfalls to advanced patterns. \n \n Covers 8 priority categories spanning async optimization, bundle size, server/client data fetching, re-renders, rendering, JavaScript performance, and advanced patterns \n Each rule includes explanation, before/after code examples, and context; rules prefixed by category (e.g., async- , bundle- , server- ) for easy reference \n Prioritizes critical issues like waterfall elimination

ManimGL best practices and patterns for 3Blue1Brown's OpenGL-based animation engine. \n \n Covers InteractiveScene, Tex with LaTeX rendering, camera frame control, and 3D scene setup with lighting and surfaces \n Interactive development workflow with -se flag for checkpoint-based iteration and self.embed() for debugging \n Comprehensive rule files for animations, mobjects, text styling, colors, 3D rendering, and CLI configuration \n Includes working examples and scene templates for basic 2D, mat

Native Home Assistant constructs for automations, helpers, scripts, and Lovelace dashboards. \n \n Prioritizes built-in conditions, triggers, and helpers over Jinja2 templates; includes decision workflow for choosing between native state conditions, numeric_state, time triggers, and template helpers \n Covers automation modes (single, restart, queued, parallel) with scenarios, entity_id vs device_id usage, and Zigbee button/remote patterns for ZHA and Zigbee2MQTT \n Provides safe refactoring wor