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Framework-agnostic rules for accessible, performant, responsive web interfaces aligned with WCAG 2.2 and modern web standards. \n \n Comprehensive accessibility guidance covering semantic HTML, ARIA, keyboard navigation, focus management, color contrast, forms, and error handling with specific WCAG success criteria mappings \n Mobile-first responsive design using modern CSS (clamp, container queries, logical properties) and touch-friendly targets; no horizontal scrolling at 320px width \n Perfor

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ChatGPT apps are conversational experiences that extend ChatGPT through tools and custom UI widgets. They're built as MCP servers invoked during conversations.

These are instructions for creating design philosophies - aesthetic movements that are then EXPRESSED VISUALLY. Output only .md files, .pdf files, and .png files.

swiftui-code-review

Map concepts to semantically appropriate icons across Lucide, Heroicons, and Phosphor libraries. \n \n Provides a quick reference table of 20 common concepts with icon names across all three libraries, plus a decision tree for selecting icons when uncertain \n Covers sizing rules (16px inline to 64px decorative), consistency patterns (no style mixing, no emoji), and tree-shaking best practices to avoid bundling unused icons \n Includes semantic mapping, React/HTML templates, and library comparis

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Create comprehensive brand guidelines to ensure consistent visual and verbal identity.

Design LLM-facing tool schemas that prevent hallucination, silent failures, and token waste. \n \n Focuses on JSON Schema design, input examples, and error handling patterns that help LLMs use tools correctly \n Emphasizes explicit documentation and clear descriptions over implementation details, since LLMs only see the schema \n Identifies anti-patterns like vague descriptions, silent failures, and tool overload that cause agent failures \n Covers function-calling, MCP tools, and tool validatio