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Rust naming, formatting, and best-practice guidelines covering 50 core rules. \n \n Covers naming conventions (no get_ prefix, iterator patterns, conversion methods), data types (newtypes, slice patterns, pre-allocation), and string handling (prefer bytes for ASCII, use Cow<str> when appropriate) \n Error handling guidance includes ? propagation over try!() , meaningful lifetime names, and lock ordering for concurrency safety \n Includes deprecation mappings (e.g., lazy_static! to OnceLock

Mobile-first responsive design patterns with 2025/2026 best practices for Tailwind CSS v4. \n \n Covers six breakpoint strategy, fluid typography and spacing using CSS clamp, and container queries for component-level responsiveness independent of viewport size \n Includes WCAG 2.2 compliant touch targets (44–48px minimum), safe area handling for notched devices, and practical layout patterns for grids, flexbox, and sidebars \n Provides mobile navigation patterns, responsive image and video techn

Comprehensive guide for building high-quality MCP servers that enable LLMs to interact with external services. \n \n Four-phase workflow covering research, implementation, review, and evaluation with detailed checklists and best practices for each stage \n Agent-centric design principles including workflow optimization, context efficiency, actionable error messages, and evaluation-driven development \n Language-specific implementation guides for Python (FastMCP) and Node/TypeScript with SDK docu

Create original visual designs by developing aesthetic philosophies, then expressing them through meticulously crafted .png or .pdf artwork. \n \n Two-step process: first generate a design philosophy manifesto (4–6 paragraphs articulating visual principles around form, space, color, and composition), then express it as a single-page or multi-page visual artifact \n Emphasizes sparse, essential-only text integrated as visual element; ideas communicate through spatial relationships, color zones, t

Write user-facing copy following Sentry's brand guidelines.

45 performance optimization rules for React and Next.js, organized by impact and category. \n \n Covers 8 rule categories from eliminating waterfalls and bundle optimization (critical) through JavaScript performance and advanced patterns (low priority) \n Each rule includes explanation, before/after code examples, and context to guide automated refactoring and code generation \n Prioritized by impact: waterfalls and bundle size are critical; server-side performance and re-render optimization are

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Translate Figma designs into production-ready code with pixel-perfect visual fidelity. \n \n Structured seven-step workflow: extract node IDs from Figma URLs, fetch design context and screenshots, download assets, translate to project conventions, and validate against Figma specs \n Integrates with Figma MCP server (remote or desktop) to access layout properties, typography, colors, design tokens, and component structure \n Emphasizes design system reuse, design token mapping, and 1:1 visual par

A five-day process for answering critical business questions through design, prototyping, and testing ideas with customers. Developed at Google Ventures and used by Google, Slack, Airbnb, and hundreds of startups.

Apply Anthropic's official brand colors, typography, and visual identity to artifacts. \n \n Includes six brand colors (dark, light, mid/light gray, orange, blue, green) with RGB values for precise matching across platforms \n Automatically applies Poppins font to headings (24pt+) and Lora font to body text, with fallback to Arial and Georgia if custom fonts unavailable \n Smart color selection adapts text and accent colors based on background for readability and visual hierarchy \n Works with s