Use this skill to drive native macOS desktop apps — Safari, Notes, Mail, Finder, System Settings, Slack, or any installed app. Covers reading an app's window, clicking buttons and menus, typing into fields, picking dropdown options, and scrolling, all through the accessibility tree. Reach for this when the user asks to "open X and do Y", automate a desktop task, fill a form, change a setting, or control any app that isn't a web page.
Use this skill to drive the user's own Chrome browser — navigate to URLs using their logged-in sessions and cookies, read page content, click elements, fill forms, switch tabs, and scroll. Reach for this when the user asks to do something on a website (search, post, fill a form, scrape content, check a logged-in dashboard), when a desktop app is actually a web app you want to drive through Chrome, or when a native macOS app renders on a canvas that the accessibility tree can't read (see the computer-use skill).
Use this skill when the user asks to find academic papers, do a literature review, search scholarly sources, write a research paper, find scientific references, or cite academic work. Covers the full workflow: searching multiple academic databases, ranking and deduplicating results, formatting citations, and synthesizing findings into structured documents.
UI/UX design intelligence for web and mobile. Includes 50+ styles, 161 color palettes, 57 font pairings, 161 product types, 99 UX guidelines, and 25 chart types across 10 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui, and HTML/CSS). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, and check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, and mobile app. Elements: button, modal, navbar, sidebar, card, table, form, and chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, and flat design. Topics: color systems, accessibility, animation, layout, typography, font pairing, spacing, interaction states, shadow, and gradient. Integrations: shadcn/ui MCP for component search and examples.
Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.
Suite of tools for creating elaborate, multi-component HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
Build, debug, and optimize Claude API / Anthropic SDK apps. Apps built with this skill should include prompt caching. Also handles migrating existing Claude API code between Claude model versions (4.5 → 4.6, 4.6 → 4.7, retired-model replacements). TRIGGER when: code imports `anthropic`/`@anthropic-ai/sdk`; user asks for the Claude API, Anthropic SDK, or Managed Agents; user adds/modifies/tunes a Claude feature (caching, thinking, compaction, tool use, batch, files, citations, memory) or model (Opus/Sonnet/Haiku) in a file; questions about prompt caching / cache hit rate in an Anthropic SDK project. SKIP: file imports `openai`/other-provider SDK, filename like `*-openai.py`/`*-generic.py`, provider-neutral code, general programming/ML.