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Found 1,245 Skills
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production, security-sensitive logic, irreversible operations), or any time a confident output would be cheaper to verify now than to debug later.
Use when deploying to Vercel - covers Fluid Compute (timeout issues, 60s bug), vercel.json configuration, maxDuration settings, cron jobs, environment variables (printf gotcha), monorepo setup, Next.js issues, and common build errors
Guide users through configuring key MongoDB MCP server options. Use this skill when a user has the MongoDB MCP server installed but hasn't configured the required environment variables, or when they ask about connecting to MongoDB/Atlas and don't have the credentials set up.
Generate a design tokens file (CSS variables or Tailwind config) based on a chosen aesthetic philosophy, with light and dark mode palettes, spacing scale, type ramp, and component-level tokens. Use when starting a new project, establishing a visual system, setting up tokens, or mentions "tokens" or "design system".
WCAG 2.2 AA compliance for forms, ARIA patterns, focus management, keyboard navigation, and screen reader support. Use when implementing accessible forms in any framework. The compliance foundation that ensures forms work for everyone.
Expert guide for managing application configuration including environment variables, config files, secrets management, and multi-environment setups. Use when handling .env files, config validation, or configuration architecture.
Conduct design interviews, generate five distinct UI variations in a temporary design lab, collect feedback, and produce implementation plans. Use when the user wants to explore UI design options, redesign existing components, or create new UI with multiple approaches to compare.
This skill should be used when the user asks about "Tailwind CSS", "tailwind-variants", "tv() function", "CSS-first configuration", "Tailwind breaking changes", mentions styling with Tailwind utilities, gradient syntax, or component variants with TypeScript.
Use when generating SDKs for multiple languages from a single OpenAPI spec, or multiple SDK variants from different sources. Covers workflow.yaml multi-target configuration, per-language gen.yaml, monorepo structure. Triggers on "multiple SDKs", "multi-language SDK", "SDK for each language", "multi-target SDK", "SDK monorepo", "generate SDKs for".
Environment variable validation, security scanning, and management for Next.js, Vite, React, and Node.js applications
Implements complete dark/light mode theming systems using CSS variables, Tailwind dark mode, React context, and system preference detection. Use when users request "add dark mode", "theme toggle", "dark theme", "light mode switch", or "color scheme".
Tests calculate tool with arithmetic, trig, and variable substitution