practices▌

Comprehensive Vue.js testing guidance covering unit, component, and end-to-end testing strategies. \n \n Addresses 11 common testing challenges including async handling, composable testing, Pinia store setup, Suspense components, and Teleport queries \n Recommends Vitest for unit and component testing infrastructure, with Playwright as the preferred E2E framework \n Covers black-box component testing patterns to prevent brittle tests during refactoring, async/await patterns to eliminate race con

Authoritative guidance for implementing Stripe payment integrations across all use cases. \n \n Prioritizes Checkout Sessions API for on-session payments and subscriptions; recommends Stripe-hosted or embedded Checkout as the primary web integration surface \n Covers payment flows, subscription models, webhooks, Connect platforms, and fund management with explicit guidance on modern APIs versus deprecated endpoints \n Includes pre-launch checklist requirements, PCI compliance considerations, and

React and Next.js performance optimization guidelines across 45 rules in 8 priority categories. \n \n Covers critical waterfalls elimination, bundle size optimization, and server-side performance with specific patterns like Promise.all, dynamic imports, and React.cache() \n Includes medium-priority rules for re-render optimization, rendering performance, and JavaScript efficiency with concrete code examples \n Organized by impact level with prefixed rule names (async-, bundle-, server-, client-,

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

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

Comprehensive best practices and integration guides for Sanity CMS development across frameworks and topics. \n \n Covers 10+ framework integrations including Next.js, Nuxt, Astro, Remix, SvelteKit, and Angular with framework-specific patterns and setup guidance \n Includes topic guides for schema design, GROQ query optimization, Visual Editing, Portable Text, images, TypeGen, localization, and content migrations \n Provides quick-reference structure for loading only relevant guides based on tas

45 performance rules for React and Next.js, organized by impact from waterfalls and bundle optimization down to advanced patterns. \n \n Covers 8 rule categories prioritized by impact: eliminating waterfalls (Promise.all, Suspense), bundle size (direct imports, dynamic loading), server-side caching, client-side deduplication, re-render optimization, rendering performance, JavaScript efficiency, and advanced patterns \n Each rule includes explanation, incorrect and correct code examples, and cont

Comprehensive guide to implementing structured, secure, and performant logging across applications. Covers log levels, structured logging formats, contextual information, PII protection, and centralized logging systems.

Idiomatic Rust coding standards based on Apollo GraphQL's best practices handbook. \n \n Covers nine core areas: coding styles and idioms, clippy linting, performance optimization, error handling, testing patterns, generics and dispatch, type state pattern, documentation, and pointer safety \n Emphasizes borrowing over cloning, Result-based error handling with thiserror/anyhow, and performance profiling with release builds \n Includes quick reference guidance on ownership patterns, panic avoidan

Web search API for LLMs with real-time data access, content extraction, site crawling, and AI-powered research. \n \n Five core methods: search() for web results, extract() for URL content, crawl() for site-wide extraction, map() for URL discovery, and research() for end-to-end AI synthesis \n Supports Python and JavaScript SDKs with async clients for parallel queries and configurable search depth (ultra-fast/fast/basic/advanced) \n Crawl method accepts semantic instructions to focus extraction