Claude Code skills, plugins, subagents, slash commands and mcp servers

caveman-evidence-review JuliusBrussee skill A read-only skill reviews Caveman Cloud evidence on LLM spend, traces, and routing. Use it to see where a project’s model budget goes. CX Codex Cursor GitHub Copilot 103,500installs caveman-manage JuliusBrussee skill The skill reads an experiment's state and results in Caveman Cloud, weighs the evidence, then reports one recommendation or blocks the action. CX Codex Cursor GitHub Copilot 103,300installs vercel-react-view-transitions vercel skill This skill guides React View Transition API work for route changes, shared elements, component enter and exit, and list reordering. It fits UI state changes without a third-party animation library. CX Codex Cursor GitHub Copilot 166,700installs migration JuliusBrussee skill Enforces reversible, compatibility-safe transitions for schema, data, and API updates. Useful whenever data loss or rollout downtime is unacceptable. CX Codex Cursor GitHub Copilot 102,900installs caveman-setup JuliusBrussee skill Routes LLM API calls through the Caveman Cloud gateway to measure token costs without altering app behavior. Useful for tracking model spend across a repo. CX Codex Cursor GitHub Copilot 102,500installs prototype emilkowalski skill The skill builds several genuinely different versions of one piece of UI and puts them behind a visual picker, so you flip through them live and keep the one that feels right. CX Codex Cursor GitHub Copilot 172,400installs animate emilkowalski skill Builds UI animations from scratch following Emil Kowalski's motion philosophy. Use it when adding motion, transitions, or component interactions. CX Codex Cursor GitHub Copilot 170,400installs ponytail-help DietrichGebert skill Shows a quick reference card for ponytail levels, skills, and configuration inside the chat. Useful when you need command triggers without leaving your editor. CX Codex Cursor GitHub Copilot 42,300installs ponytail-debt DietrichGebert skill Turns every deliberate ponytail shortcut into one debt ledger: file, line, the ceiling the comment names, and the trigger for revisiting it. CX Codex Cursor GitHub Copilot 42,200installs obsidian-cli kepano skill A skill for working with Obsidian vaults from the command line: read and create notes, search, edit properties, debug plugins and themes. CX Codex Cursor GitHub Copilot 80,800installs ponytail-gain DietrichGebert skill Displays measured benchmark savings across code volume, token spend, and execution time for Ponytail. Useful when evaluating the toolset. CX Codex Cursor GitHub Copilot 40,300installs seo-audit coreyhaines31 skill Diagnoses technical SEO issues, indexing drops, and metadata errors. Identifies why your site is losing organic search rankings in Google. CX Codex Cursor GitHub Copilot 236,800installs last30days mvanhorn skill Pulls posts and engagement on any topic from the last 30 days across Reddit, X, YouTube, TikTok, Hacker News, Polymarket, GitHub and the web. Useful when you want what people actually said, not what a blog summarized. CX Codex Cursor GitHub Copilot 52,400installs migrate-radix-to-base shadcn-ui skill Migrates React components and full projects from Radix UI to Base UI (@base-ui/react). Useful when switching the underlying primitives in shadcn/ui projects. CX Codex Cursor GitHub Copilot 30,100installs hallmark Nutlope skill Enforces strict frontend design constraints to stop coding assistants from producing generic, AI-looking web pages. CX Codex Cursor GitHub Copilot 69,100installs security-audit cloudflare skill Reviews codebases and APIs for vulnerabilities using safe sandboxing. Fits pre-release security reviews, pen-test triage, and architecture checks. CX Codex Cursor GitHub Copilot 52,200installs vercel-cli-with-tokens vercel skill Lets your agent drive the Vercel CLI with an access token instead of an interactive login: find the token, link the project, ship a preview, edit env vars. CX Codex Cursor GitHub Copilot 135,200installs ask-sonner emilkowalski skill A guide skill for Sonner, the React toast library: mount the Toaster, pick the right toast() call, style it, fix what breaks. CX Codex Cursor GitHub Copilot 138,600installs design-system claudekit skill This skill builds design tokens, component specs, and presentation slides. Use it when an interface and its slides need to follow one visual system. CX Codex Cursor GitHub Copilot 42,200installs remotion-best-practices remotion-dev skill Routes Remotion tasks to focused guidance for video creation, React markup, maps, multimedia, previews, and rendering. CX Codex Cursor GitHub Copilot 678,800installs animate-expo emilkowalski skill Builds React Native and Expo animations using Reanimated and Gesture Handler. Helps keep motion on the UI thread and avoid dropped frames on physical devices. CX Codex Cursor GitHub Copilot 135,900installs design claudekit skill Generates logos, brand identity assets, design tokens, Chart.js HTML slides, and multi-platform banners using Python scripts and AI providers. CX Codex Cursor GitHub Copilot 40,800installs ui-styling claudekit skill A skill that helps your agent build accessible interfaces with shadcn/ui and Tailwind CSS: components, themes, dark mode, responsive layouts and canvas design. CX Codex Cursor GitHub Copilot 40,200installs brand claudekit skill Keeps brand voice, visual rules and design tokens in one markdown file, then feeds them to your agent's prompts and to your CSS variables. CX Codex Cursor GitHub Copilot 39,500installs banner-design claudekit skill Generates banners for social media, ads, and web hero sections using HTML/CSS. Useful when you need fast visual creative assets directly in your coding agent. CX Codex Cursor GitHub Copilot 39,000installs slides claudekit skill Builds strategic HTML presentations using Chart.js and design tokens. Useful for generating pitch decks and marketing slides directly from the agent. CX Codex Cursor GitHub Copilot 38,400installs write-swift emilkowalski skill This skill guides Swift coding, reviews, and migrations using the language’s current practices. Use it to investigate concurrency errors, hangs, data races, or retain cycles. CX Codex Cursor GitHub Copilot 117,500installs vercel-optimize vercel-labs skill A skill that audits Vercel spend and speed: it gathers usage and route metrics first, then recommends code and config changes. CX Codex Cursor GitHub Copilot 110,000installs code-review-and-quality addyosmani skill Five review axes and a limit on diff size, so an agent checks a change before merge instead of after. CX Codex Cursor GitHub Copilot 72,500installs writing-guidelines vercel skill A skill that reviews docs and prose against a written style guide. You get findings with line numbers instead of hunting through the file yourself. CX Codex Cursor GitHub Copilot 105,900installs security-and-hardening addyosmani skill Guides threat modeling and security checks for code that handles user input, authentication, sessions, or external services. Use it when building a feature that accepts untrusted data or reviewing code before release. CX Codex Cursor GitHub Copilot 69,400installs marketing-psychology coreyhaines31 skill Applies behavioral science and mental models to marketing decisions. It helps teams analyze buyer motivations and solve funnel bottlenecks. CX Codex Cursor GitHub Copilot 164,000installs content-strategy coreyhaines31 skill Plans content roadmaps, selects blog topics, and balances searchable search-intent pieces with shareable formats. Use it when deciding what to write next to bring in leads. CX Codex Cursor GitHub Copilot 163,400installs frontend-ui-engineering addyosmani skill Enforces production standards for component architecture, WCAG 2.1 AA accessibility, and design systems. Stops AI models from defaulting to purple buttons, heavy shadows, and arbitrary spacing. CX Codex Cursor GitHub Copilot 66,600installs discernment-nudge official anthropics skill Adds follow-up questions that test facts, reasoning, and missing context after answers a user may act on. Use it for advice, plans, estimates, and other consequential drafts. Claude.ai 12,227installs i-have-adhd ayghri skill Reshapes agent replies so the next action comes first. Turn it on with /i-have-adhd, off with "stop adhd mode". CX Codex Cursor GitHub Copilot 29,200installs academy-guide official anthropics skill Matches Claude learning questions with relevant Claude Academy materials. Use it for onboarding, feature training, and team education requests. Claude.ai 11,893installs performance-optimization addyosmani skill An agent skill that measures before it changes code: Core Web Vitals budgets, N+1 queries, missing indexes and slow endpoints. CX Codex Cursor GitHub Copilot 64,500installs spec-driven-development addyosmani skill Enforces writing a structured specification before coding. Useful when starting new features, tackling vague requirements, or making architectural decisions. CX Codex Cursor GitHub Copilot 64,300installs planning-and-task-breakdown addyosmani skill Breaks specifications into small, testable tasks with clear acceptance criteria. Prevents agents from jumping straight into coding before dependencies and risks are mapped. CX Codex Cursor GitHub Copilot 63,600installs