A collection of 400+ practical extensions to enhance your productivity across Claude.ai, Claude Code, and the Claude API.
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Specialized agents for blockchain development, smart contracts, and Web3 applications
Agents for business analysis, financial modeling, and KPI tracking
Expert agents for cryptocurrency trading, DeFi strategies, and market analysis
Agents for data engineering, machine learning, and AI development
Agents for UI/UX design, accessibility, and user experience optimization
Expert agents for software architecture, backend development, and system design
Agents for cloud infrastructure, DevOps, and database operations
Expert agents for specific programming languages (Python, Go, Rust, etc.)
Suite of tools for creating elaborate, multi-component claude.ai 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.
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
Extracts and analyzes competitors' ads from ad libraries (Facebook, LinkedIn, etc.) to understand what messaging, problems, and creative approaches are working. Helps inspire and improve your own ad campaigns.
Assists in writing high-quality content by conducting research, adding citations, improving hooks, iterating on outlines, and providing real-time feedback on each section. Transforms your writing process from solo effort to collaborative partnership.
Analyzes your recent Claude Code chat history to identify coding patterns, development gaps, and areas for improvement, curates relevant learning resources from HackerNews, and automatically sends a personalized growth report to your Slack DMs.
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks
Synthesize academic research from multiple sources with citations. Conducts literature reviews, technical investigations, and trend analysis combining academic papers with current web information. Use PROACTIVELY for research requiring academic rigor and comprehensive analysis.
Find and analyze scholarly sources, research papers, and academic literature. Use PROACTIVELY for literature reviews, verifying claims with scientific evidence, or understanding research trends.
Ensure web applications meet WCAG 2.1 AA/AAA standards. Implements ARIA attributes, keyboard navigation, and screen reader support. Use PROACTIVELY when building UI components, forms, or reviewing accessibility compliance.
Create and optimize specialized Claude Code agents. Expertise in agent design, prompt engineering, domain modeling, and best practices for claude-code-templates system. Use PROACTIVELY when designing new agents or improving existing ones.
Build LLM applications, RAG systems, and prompt pipelines. Implements vector search, agent orchestration, and AI API integrations. Use PROACTIVELY for LLM features, chatbots, or AI-powered applications.
Create OpenAPI/Swagger specs, generate SDKs, and write developer documentation. Handles versioning, examples, and interactive docs. Use PROACTIVELY for API documentation or client library generation.
Conduct security audits for REST APIs and identify vulnerabilities. Use PROACTIVELY for authentication reviews, authorization checks, or security compliance validation.
Identify and execute cryptocurrency arbitrage opportunities across exchanges and DeFi protocols. Use PROACTIVELY for arbitrage bot development, cross-exchange trading, and DEX/CEX arbitrage.
Follow RED-GREEN-REFACTOR cycle approach for test-driven development
Implement secure user authentication system
Generate and maintain project changelog
Setup mutation testing for code quality
Add and configure new project dependencies
Setup application performance monitoring
Implement property-based testing framework
Add a new entry to the project's CHANGELOG.md file following Keep a Changelog format
Automatically stage modified files with git add after editing
Automatically trigger build processes when source files change
Track file changes in a simple log
Monitor and audit dependencies for security vulnerabilities and updates
Send detailed Discord notifications with session information and rich embeds
Send Discord notifications for long-running operations and important events
Send Discord notifications when Claude Code finishes working
Automatically backup files before editing
Add the plugin marketplace to Claude Code
/plugin marketplace add davepoon/buildwithclaude