IDE & Editors

Use when you work with Swift code or Xcode tooling - establishes style guidelines, teaches you vital Swift techniques, and how to use Xcode build tools

Comprehensive toolkit for analyzing and anticipating Nvidia and semiconductor supply chain stock movements. Use when users need to (1) analyze Nvidia ecosystem dependencies and correlations, (2) identify trading opportunities across the supply chain, (3) track earnings catalysts and events, (4) understand bottlenecks and risk factors, (5) develop supply chain investment strategies, or (6) monitor technical indicators and momentum across semiconductor names. Provides real-time data fetching, technical analysis, fundamental relationships mapping, and predictive signals based on supply chain dynamics.

Write and maintain CSS following project conventions using consistent methodologies like Tailwind CSS, BEM, CSS modules, or utility classes, while creating distinctive, aesthetically excellent designs. Use this skill when writing CSS styles, applying Tailwind utility classes, creating custom CSS, working with styling files (*.css, *.scss, *.module.css, globals.css, tailwind.config.*), maintaining design systems and design tokens, defining CSS variables for colors and spacing, implementing typography styles with unique font choices, creating atmospheric backgrounds and depth, adding animations and micro-interactions, avoiding framework style overrides, avoiding generic "AI slop" aesthetics (purple gradients, Inter/Roboto everywhere, cookie-cutter designs), optimizing CSS for production with purging and tree-shaking, or ensuring consistent styling patterns across the application. Apply this skill when styling components, refactoring CSS code, setting up design systems, choosing fonts and colors, creating animat

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Create Impressum and Datenschutz pages with legally required content for German/Swiss websites. Provides templates with all mandatory sections for DSG/DSGVO compliance. Use when creating legal pages, checking compliance, or user asks for "impressum", "datenschutz", "legal pages", "privacy policy", "imprint".

Production-tested setup for Zustand state management in React applications with TypeScript.This skill provides comprehensive patterns for building scalable, type-safe global state.Use when: setting up global state in React, migrating from Redux or Context API, implementingstate persistence with localStorage, configuring TypeScript with Zustand, using slices patternfor modular stores, adding devtools middleware for debugging, handling Next.js SSR hydration,or encountering hydration errors, TypeScript inference issues, or persist middleware problems.Prevents 5 documented issues: Next.js hydration mismatches, TypeScript double parenthesessyntax errors, persist middleware export errors, infinite render loops, and slices patterntype inference failures.Keywords: zustand, state management, React state, TypeScript state, persist middleware,devtools, slices pattern, global state, React hooks, create store, useBoundStore,StateCreator, hydration error, text content mismatch, infinite render, localStorage,

Formats markdown files according to best practices and common style guidelines. Use when cleaning up markdown documentation, ensuring consistent formatting, or standardizing README files.

Create or harden a devcontainer-based development sandbox so coding agents run inside an isolated container with least privilege and strong guardrails (no destructive host access, controlled network/secrets, reproducible toolchain).

Use PROACTIVELY this agent when you need to design and create optimal Claude Code subagents, update existing agents with new capabilities, revise agent configurations, analyze project requirements to identify specialized roles, or craft precise agent configurations with appropriate tool permissions and model tiers. When the user specify "Create or Update subagent [name]", this skill must be triggered.

Use PROACTIVELY when creating, reviewing, or updating Claude Code Skills. MUST be invoked before writing any new SKILL.md file. Provides structure, workflows, and validation for skill development.

Generate clear, well-documented code examples, implementation patterns, configuration files, and integration samples. Use this skill when creating code snippets, implementation guides, or showing how to use code.

Standardized, hypothesis-driven debug investigation workflow for unexpected behavior, regressions, incidents, flaky tests, or production issues. Use to plan instrumentation, reproduce with decisive signals, compare runs, and narrow root cause without assuming any vendor or infrastructure.

Guide for creating effective skills using TypeScript/Bun scripts (Windows-compatible). Use when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

Expert guide for sending transactional emails, creating templates, scheduling notifications, and email best practices. Use when implementing email functionality, notifications, or campaigns.

Guide for building AI-powered applications using the Vercel AI SDK v6. Use when developing with generateText, streamText, useChat, tool calling, agents, structured output generation, MCP integration, or any LLM-powered features in TypeScript/JavaScript applications. Covers React, Next.js, Vue, Svelte, and Node.js implementations.

Use after completing tracks, significant milestones, or incident resolution - captures lessons learned for future reference

Guide for using uv - an extremely fast Python package and project manager written in Rust. Use when installing Python, managing virtual environments, adding dependencies, running scripts, building packages, or working with pyproject.toml. Replaces pip, pip-tools, pipx, poetry, pyenv, twine, and virtualenv.

Extracts and assesses research methodology, claims, and evidence from research papers in HASS disciplines. Evaluates transparency, replicability, and credibility through systematic extraction of research designs, methods, protocols, claims, and evidence using a six-pass iterative workflow.

Interactive Flexbox and Grid layout generator with real-time code output. Creates production-ready layouts based on your requirements with proper fallbacks and responsive considerations. Use when building layouts, grids, or complex positioning systems.

This skill should be used when designing agent orchestration, implementing firewall architecture, creating phase-based workflows, adding severity batching, structuring agent hierarchies, or implementing SOTA multi-agent coordination patterns. Provides production-ready patterns for scalable agent systems.