mcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
Collision-Zone Thinking
Force unrelated concepts together to discover emergent properties - "What if we treated X like Y?"
chrome-debug
How to use Chrome DevTools MCP for browser debugging. Use when you need to inspect pages, take screenshots, debug UI issues, or verify visual changes.
cloudflare-browser-rendering
Guide for implementing Cloudflare Browser Rendering - a headless browser automation API for screenshots, PDFs, web scraping, and testing. Use when automating browsers, taking screenshots, generating PDFs, scraping dynamic content, extracting structured data, or testing web applications. Supports REST API, Workers Bindings (Puppeteer/Playwright), MCP servers, and AI-powered automation. (project)
cloudflare-r2
Guide for implementing Cloudflare R2 - S3-compatible object storage with zero egress fees. Use when implementing file storage, uploads/downloads, data migration to/from R2, configuring buckets, integrating with Workers, or working with R2 APIs and SDKs.
cloudflare-workers
Comprehensive guide for building serverless applications with Cloudflare Workers. Use when developing Workers, configuring bindings, implementing runtime APIs, testing Workers, using Wrangler CLI, deploying to production, or building edge functions with JavaScript/TypeScript/Python/Rust.
cloudflare
Guide for building applications on Cloudflare's edge platform. Use when implementing serverless functions (Workers), edge databases (D1), storage (R2, KV), real-time apps (Durable Objects), AI features (Workers AI, AI Gateway), static sites (Pages), or any edge computing solutions.
Defense-in-Depth Validation
Validate at every layer data passes through to make bugs impossible
Root Cause Tracing
Systematically trace bugs backward through call stack to find original trigger
Systematic Debugging
Four-phase debugging framework that ensures root cause investigation before attempting fixes. Never jump to solutions.
Verification Before Completion
Run verification commands and confirm output before claiming success
docker
Guide for using Docker - a containerization platform for building, running, and deploying applications in isolated containers. Use when containerizing applications, creating Dockerfiles, working with Docker Compose, managing images/containers, configuring networking and storage, optimizing builds, deploying to production, or implementing CI/CD pipelines with Docker.
mongodb
Guide for implementing MongoDB - a document database platform with CRUD operations, aggregation pipelines, indexing, replication, sharding, search capabilities, and comprehensive security. Use when working with MongoDB databases, designing schemas, writing queries, optimizing performance, configuring deployments (Atlas/self-managed/Kubernetes), implementing security, or integrating with applications through 15+ official drivers. (project)
motion-vue
Motion for Vue animation library guidance. Use when building Vue animations with motion-v package, implementing gesture animations (hover, press, drag), scroll-linked animations, layout animations, exit animations with AnimatePresence, variants, spring physics, or using hooks like useAnimate, useScroll, useSpring, useMotionValue, useTransform. Triggers on keywords like motion.div, motion-v, whileHover, whilePress, whileDrag, whileInView, AnimatePresence, layout animations, scroll animations, MotionConfig, LayoutGroup.
postgresql-psql
Comprehensive guide for PostgreSQL psql - the interactive terminal client for PostgreSQL. Use when connecting to PostgreSQL databases, executing queries, managing databases/tables, configuring connection options, formatting output, writing scripts, managing transactions, and using advanced psql features for database administration and development.
prd-clarifier
Refine and clarify PRD documentation through structured questioning using the visual AskUserQuestion tool
prd-lite
Convert a rough MVP idea into a demo-grade PRD (Steps 1-7)
prd-to-ux
Use when translating PRDs, feature specs, or product requirements into UX specifications for mockup tools like Google Stitch, Figma, or similar. Use before creating visual designs, wireframes, or component specs.
Inversion Exercise
Flip core assumptions to reveal hidden constraints and alternative approaches - "what if the opposite were true?"
Meta-Pattern Recognition
Spot patterns appearing in 3+ domains to find universal principles
When Stuck - Problem-Solving Dispatch
Dispatch to the right problem-solving technique based on how you're stuck
shadcn-ui
Use when building React UIs with component libraries, implementing forms, dialogs, navigation, or data display. Use when user mentions shadcn, Radix UI, Base UI, or asks about accessible React components. Proactively suggest when building UI that would benefit from pre-built accessible components with Tailwind CSS styling.
tailwindcss
Guide for implementing Tailwind CSS - a utility-first CSS framework for rapid UI development. Use when styling applications with responsive design, dark mode, custom themes, or building design systems with Tailwind's utility classes.
template-skill
Replace with description of the skill and when Claude should use it.
turborepo
Guide for implementing Turborepo - a high-performance build system for JavaScript and TypeScript monorepos. Use when setting up monorepos, optimizing build performance, implementing task pipelines, configuring caching strategies, or orchestrating tasks across multiple packages.
ux-spec-to-prompts
Use when translating UX specifications into build-order prompts for UI generation tools. Triggers when user has a UX spec, PRD, or detailed feature doc and needs sequential, self-contained prompts for tools like v0, Bolt, or Claude frontend-design.
always-works-testing
Default testing standard for all implementation work - ensures code actually works through mandatory execution validation before confirming to user. Applies automatically whenever writing, modifying, debugging, or implementing any code (scripts, APIs, UI, configs, data operations, logic changes). This is the baseline expectation, not an optional extra - every implementation must be verified through actual execution, not assumed correct.
Cloudflare Documentation Search
This skill should be used when the user asks about "Cloudflare", "Workers", "Pages", "R2", "D1", "KV", "Durable Objects", "Queues", "Vectorize", "AI Gateway", "Hyperdrive", "Cloudflare API", "Wrangler", "Cloudflare documentation", "how to deploy to Cloudflare", "Cloudflare best practices", "Cloudflare pricing", "Cloudflare limits".
Cloudflare DNS Analytics
This skill should be used when the user asks about "DNS performance", "zone settings", "DNS analytics", "domain configuration", "DNS report", "zone list", "DNS troubleshooting", "DNSSEC", "DNS latency", or needs to monitor and optimize Cloudflare DNS.
Cloudflare Workers Bindings
This skill should be used when the user asks about "KV namespace", "R2 bucket", "D1 database", "Hyperdrive", "create binding", "list workers", "worker code", "storage binding", "database query", "object storage", "key-value store", "connection pooling", or needs to manage Cloudflare Workers storage and compute resources.
Cognitive Load
This skill should be used when the user asks to "implement", "build", "create", "add feature", "develop", "design", "architect", "plan", "structure", "refactor", "improve", "optimize", "review", "fix", "solve", "handle", "debug", or discusses implementation strategies. Apply cognitive load principles to ALL development work as a cornerstone principle.
Rails Code Generation
This skill should be used when the user asks to "generate Rails code", "create a model", "create a controller", "add a migration", "write Rails tests", "set up background jobs", "configure Rails app", or discusses Rails conventions, best practices, ActiveRecord patterns, Hotwire/Stimulus, ViewComponent, RSpec testing, or Ruby on Rails development. Based on Evil Martians' AGENTS.md.
Simplicity First
This skill should be used when the user asks to "implement", "build", "create", "add feature", "develop", "design", "architect", "plan", "structure", "refactor", "improve", "optimize", "fix", "solve", "handle", "choose between", "which approach", or discusses implementation strategies. Apply this philosophy to ALL development work as a cornerstone principle.
Cloudflare Workers Builds
This skill should be used when the user asks about "deploy status", "build failed", "build logs", "deployment history", "worker deployment", "check build", "deployment succeeded", "build error", "CI/CD", "verify deployment", or needs to monitor Cloudflare Workers builds and deployments.
Cloudflare Workers Observability
This skill should be used when the user asks about "worker logs", "debug worker", "worker errors", "request analytics", "worker metrics", "performance monitoring", "error rate", "invocation logs", "troubleshoot worker", "worker analytics", or needs to debug and monitor Cloudflare Workers.
feature-planner
Creates phase-based feature plans with quality gates and incremental delivery structure. Use when planning features, organizing work, breaking down tasks, creating roadmaps, or structuring development strategy. Keywords: plan, planning, phases, breakdown, strategy, roadmap, organize, structure, outline.
btc-trading-bot
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developing-skills
MUST be loaded before working with any Skill. Covers creating, building, reviewing, assessing, checking, auditing, evaluating, updating, modifying, and improving skills. Use PROACTIVELY before writing or changing SKILL.md, workflow files, knowledge files, templates, or skill evals. Supports personal and standalone distributable skills.
higher-ed-fred-analysis
Create sophisticated economic data analyses and visualizations for higher education stakeholders using FRED (Federal Reserve Economic Data). Use this skill when users request: (1) Analysis of student loan debt, unemployment by education level, or earnings data, (2) Dashboard or visual presentations of higher ed economic indicators, (3) Narrative reports on higher education ROI or economic value, (4) Data-driven communications for institutional stakeholders (trustees, enrollment management, financial aid offices), or (5) Integration of FRED API data into interactive visualizations.
spec-driven-dev
Guide for spec-based agent-driven development using structured requirements (EARS notation), technical design documentation, and implementation planning. Use when users want to build features using a specification-first approach, need to document requirements formally, want to generate implementation plans from specs, or when working on projects that benefit from clear requirement-to-code traceability.
skill-creator
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
create-mcp-app
This skill should be used when the user asks to "create an MCP App", "add a UI to an MCP tool", "build an interactive MCP View", "scaffold an MCP App", or needs guidance on MCP Apps SDK patterns, UI-resource registration, MCP App lifecycle, or host integration. Provides comprehensive guidance for building MCP Apps with interactive UIs.
frontend-design
Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.
migrate-to-gitlab
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quick-mockup
Generate UI mockups as standalone HTML pages using the Sailwind design token system. Use this skill when asked to create mockups, prototypes, or HTML previews for an app or feature — given a text description (app spec, PRD, feature brief) and/or a reference screenshot/image. Produces coherent multi-page HTML mockups styled exclusively from the Sailwind design tokens (colors, typography, spacing, gradients). Do NOT use the frontend-design skill for these tasks.
style-audit
Analyze a frontend codebase for design token discrepancies against Sailwind tokens, generate a Token Policy Standard (TPS) report, apply fixes, and create a PR for human review. Use this skill when asked to audit design tokens, align styles with the design system, or create a TPS report. Works with Less, CSS, and TSX/JSX files.
tool-audit
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usability-testing
Guide designers through usability testing for a specific feature. Use when a designer asks for help with: prepping a usability test, drafting a test script or task scenarios, writing study questions, setting up session notes, or summarizing findings from completed sessions. Covers the full arc: objectives, script, tasks, questions, findings report.
ux-content-standards
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vignette
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