Development
Tools for software development, testing, and integration
Algorithmic Art
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration
Artifacts Builder
Build complex claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui components
MCP Builder
Guide for creating high-quality MCP servers to integrate external APIs and services
Web App Testing
Test local web applications using Playwright for UI verification and debugging
Superpowers
A comprehensive workflow system for Claude with 20 proven development techniques
Changelog Generator
Automatically creates user-facing changelogs from git commits by analyzing history and categorizing changes
FFUF Web Fuzzing
Fast web fuzzer for discovering hidden content, directories, files, and vulnerabilities during penetration testing
iOS Simulator Skill
21 production-ready scripts for iOS app testing, building, and automation with semantic UI navigation
Playwright Browser Automation
General-purpose browser automation with Playwright for testing pages, forms, responsive design, and UX validation
Web Asset Generator
Generate favicons, app icons (PWA), and social media Open Graph images from logos or text
AWS Skills
AWS development with CDK best practices, cost optimization MCP servers, and serverless/event-driven architecture patterns
Claude Code Terminal Title
Gives each Claud-Code terminal window a dynamic title that describes the work being done so you don't lose track of what window is doing what
D3.js Visualization
Teaches Claude to produce D3 charts and interactive data visualizations
jules
Delegate coding tasks to Google Jules AI agent for async bug fixes, documentation, tests, and feature implementation on GitHub repos
Move Code Quality Checker
Analyzes Move language packages against the official Move Book Code Quality Checklist for Move 2024 Edition compliance and best practices
prompt-engineering
Teaches well-known prompt engineering techniques and patterns, including Anthropic best practices and agent persuasion principles
PICT Test Case Generator
Design comprehensive test cases using PICT (Pairwise Independent Combinatorial Testing) for requirements or code, generating optimized test suites with pairwise coverage
Reddit Content Fetcher
Fetches Reddit content via Gemini CLI when WebFetch is blocked or returns 403 errors
Skill Seekers (Doc Converter)
Automatically converts any documentation website into a Claude AI skill in minutes
software-architecture
Implements design patterns including Clean Architecture, SOLID principles, and comprehensive software design best practices
subagent-driven-development
Dispatches independent subagents for individual tasks with code review checkpoints between iterations for rapid, controlled development
postgres
Execute safe read-only SQL queries against PostgreSQL databases with multi-connection support and defense-in-depth security
n8n Workflow Skills
Enables AI assistants to directly understand and operate n8n workflows
git-pushing
Automate git operations and repository interactions
google-workspace-skills
Suite of Google Workspace integrations: Gmail, Calendar, Chat, Docs, Sheets, Slides, and Drive with cross-platform OAuth
outline
Search, read, create, and manage documents in Outline wiki instances (cloud or self-hosted)
review-implementing
Evaluate code implementation plans and align with specs
test-fixing
Detect failing tests and propose patches or fixes
Swift Concurrency Migration
Swift Concurrency Migration guide
Obsidian Plugin Development
Obsidian.md plugin development
Stream Coding
Stream Coding methodology
SwiftUI Development Skills
Apple-authored SwiftUI and platform guidance extracted from Xcode
Dev Browser
Web browser capability for agents
Vectorize MCP Worker
Edge-native MCP server patterns for production RAG
Agent Manager
Manage local CLI AI agents via tmux (start/stop/monitor/assign + cron scheduling)
Google Sheets CLI
Google Sheets CLI automation
Context Engineering
Context engineering techniques
Frontend Design
The official Claude frontend design skill by Anthropic. Guides Claude Code to create distinctive, production-grade frontend interfaces with high design quality, covering typography, color, motion, spatial composition, and UI design patterns
Context Engineering Guide
Comprehensive context engineering tutorial covering attention mechanics, progressive disclosure, context budget management, and quality vs quantity trade-offs for AI agent development
Multi-Agent Architecture Patterns
Reference guide for multi-agent architecture patterns including Supervisor/Orchestrator, Peer-to-Peer/Swarm, and Hierarchical, with context isolation principles and Claude Code implementation
Review Local Changes
Multi-agent code review system for uncommitted changes with 6 specialized reviewer roles (security, bug, quality, contract, testing, history), confidence scoring and false positive filtering
Review Pull Request
Multi-agent PR review system with specialized reviewers, inline comments, and automatic PR description generation using GitHub CLI
Architecture Diagram Creator
Creates comprehensive HTML architecture diagrams with SVG visualizations showing business context, data flows, processing pipelines, and system architecture
Agent Evaluation Framework
Comprehensive Claude Code agent evaluation framework with multi-dimensional scoring, LLM-as-Judge mode, and research-backed performance variance analysis
Thought-Based Reasoning Techniques
Guide to 8 LLM reasoning techniques: Chain-of-Thought, Zero-shot CoT, Self-Consistency, Tree of Thoughts, Least-to-Most, ReAct, PAL, and Reflexion with research citations
Self-Reflection Framework
Iterative self-improvement system with task complexity grading, strict quality gatekeeper role, confidence thresholds, and verification checklists
Multi-Perspective Critique
Multi-perspective review system using Multi-Agent Debate and LLM-as-Judge patterns with 3 specialized judges, debate rounds, and consensus building
MySQL Integration
Execute safe read-only SQL queries against MySQL databases with multi-connection support, SSL encryption, and defense-in-depth security
Microsoft SQL Server Integration
Execute safe read-only queries against MS SQL Server databases with multi-connection support, TLS encryption, and comprehensive security features
Codebase Documenter
Generates comprehensive codebase documentation covering architecture (with Mermaid diagrams), directory structure, key components, integrations, data models, and development setup
Conventional Commit Helper
Conventional commit format guide with auto-staging, diff analysis, multi-change split suggestions, and 30+ emoji mappings for commit types
Create PR Workflow
GitHub CLI-based PR creation workflow with pre-checks for uncommitted code, conventional commit formatting, and emoji title conventions
Auto Write Tests
Automated test writing orchestration system that discovers test infrastructure, analyzes code changes, and dispatches parallel agents to write comprehensive test coverage
Auto Fix Tests
Systematic failing test repair orchestration with auto-discovery, parallel agent fixes, and full verification, emphasizing fixing tests without modifying business logic
Codebase Auditor
Comprehensive codebase audit across 6 dimensions: architecture, code quality, security (OWASP Top 10), performance, testing coverage, and maintainability with prioritized action plan
Create Claude Code Agent
Complete guide for creating Claude Code agents with YAML frontmatter structure, agent file format, trigger condition design, and system prompt writing
Create Skill (TDD Method)
TDD methodology for skill creation — test with subagents first, write skill to address failures, iterate until bulletproof against rationalization
Tree of Thoughts Reasoning
Systematic ToT reasoning framework with 6 phases: explore, prune, expand, evaluate, adaptive strategy selection, and synthesis with parallel agent dispatch
Flowchart Creator
Creates HTML flowcharts and process diagrams with SVG-based nodes, decision diamonds, connecting arrows, and optional swimlanes with color-coded types
Parallel Agent Dispatch
Launch multiple sub-agents in parallel with intelligent model selection, Zero-shot CoT reasoning, independence verification, and batch operation scheduling
Execute and Judge Loop
Single-task execution with LLM-as-Judge verification in an iterative loop, supporting auto-retry and strict orchestrator role separation
A3 Problem Analysis
Toyota A3 problem analysis template covering 7 stages: background, current state, goals, root cause analysis, countermeasures, implementation plan, and follow-up
Azure DevOps Integration
Comprehensive Azure DevOps integration covering 13 domains (work items, repos, PRs, pipelines, wiki, test plans, security alerts) with 99 tools via Python CLI
Ensemble Problem Solving
Generates 3 diverse solutions using different strategies (simplicity/performance/extensibility), evaluates with weighted rubric, and selects best approach with rationale
Spec-Driven Brainstorm
Collaborative brainstorming that refines ideas into designs through progressive questioning, generating 6 solutions (3 high-probability + 3 exploratory) with validation
Spec-Driven Planning
Task specification refinement pipeline with 6 stages (parallel analysis, architecture synthesis, decomposition, parallelization, verification, promotion) and quality gates
Create Git Hook
Claude Code git hook creation workflow with project analysis, intelligent suggestions for TypeScript/Prettier/ESLint/security, auto-configuration, and testing
Auto Update Docs
Multi-agent workflow for automatically updating documentation based on code changes, covering docs/, README, JSDoc, and API docs with complexity-based routing
Spec-Driven Implement
Implementation system driven by task specs with LLM-as-Judge auto-verification, iterative repair, breakpoint resume, and human-in-the-loop checkpoints
LLM-as-Judge Evaluator
Standalone LLM-as-Judge evaluation tool with context isolation, Chain-of-Thought scoring, multi-dimensional weighted rubric, and evidence-backed assessments
First Principles Hypothesis Framework
First Principles reasoning framework with hypothesis generation, logical and evidence validation, layered trust audit (L0/L1/L2), and reliability scoring
Technical Doc Creator
Creates HTML technical documentation with syntax-highlighted code blocks, API endpoint references, architecture diagrams, and color-coded HTTP method indicators
Root Cause Tracing
Backward debugging methodology tracing from error symptoms through call chains to find the original trigger point, with 5-step systematic process
Developer Growth Analysis
Analyzes recent Claude Code chat history to identify coding patterns and development gaps, curates learning resources from HackerNews, and delivers growth reports to Slack
Analyze GitHub Issue
Analyzes GitHub issues and creates technical spec documents with problem statement, technical approach, implementation plan, and testing strategy
Create Git Worktree
Automated git worktree creation with branch type prefix detection, dependency installation for Node/Python/Rust/Go/Ruby/PHP, and package manager detection
Git Worktrees Reference
Complete reference for git worktree concepts and commands: create, manage, list, move, lock, and remove operations with practical examples
Build MCP Server
MCP server development guide with agent-centric design principles, workflow-first approach, and dual Python (FastMCP) / TypeScript implementation support
LangSmith Fetch
Debug LangChain and LangGraph agents by fetching execution traces from LangSmith Studio with 4 workflows: quick debug, deep dive, export, and error pattern detection
Bulk Code Refactor
Systematic workflow for bulk code refactoring — finding all occurrences with Grep, replacing across files with Edit replace_all, and verifying changes including edge cases
Code Transfer Between Files
Transfers code between files with line-based precision — extracting functions/classes and inserting at specific positions, reorganizing code into modules
Feature Planning
Breaks down feature requests into detailed implementation plans with file paths, line numbers, architecture decisions, dependency analysis, and sequential task ordering
Project Bootstrapper
Sets up new projects with best practices across 8 areas: structure, git config, documentation, testing, code quality tools, dependencies, dev workflow, and CI/CD
GitHub Copilot Skills
324 official GitHub Copilot plugin skills across Azure, .NET, Docker, and more
Everything Claude Code
The ultimate Claude Code optimization system with 86+ skills, rules, hooks, and agent configurations
Anthropic Official Skills
16 official skills from Anthropic, the creators of Claude — frontend design, PDF, DOCX, XLSX, MCP builder, and more
OpenAI Official Skills
37 official skills from OpenAI for Codex CLI and multi-agent development
Microsoft Skills
333 skills across Azure, .NET, AI Foundry — the largest enterprise skills collection
Google AI Skills
11 official skills from Google Labs and Gemini for AI-powered development
Vercel Skills
8 official Vercel skills for Next.js, React, and edge deployment
Cloudflare Skills
9 official Cloudflare skills for Workers, Pages, R2, and edge computing
Hugging Face Skills
13 official Hugging Face skills for transformers, model hub, and ML pipelines
WordPress Skills
26 official WordPress and Automattic skills for blocks, themes, and plugin development
All Development skills
showing 60 of 2,401Facilitates conversational discovery to create Architectural Decision Records (ADRs) for functional ...
Facilitates conversational discovery to create Architectural Decision Records (ADRs) for non-functio...
Agents can sign plugins, rotate credentials without losing identity, and publicly attest to behavior...
Use when you need to review, improve, or troubleshoot a Maven pom.xml file — including dependency ma...
Use when you need to add or evaluate Maven dependencies that improve code quality — including nullne...
Covers Maven Central search using structured Search API fields and URL construction, plus project-lo...
The Twelve-Factor App methodology for building scalable, maintainable cloud-native applications. Use...
Use when you need to select, review, or implement Java design and integration patterns — including c...
Use when you need to apply Java exception handling best practices — including using specific excepti...
Use when you need to review, improve, or refactor Java code for generics quality — including avoidin...
Use when you need to apply functional programming principles in Java — including writing immutable o...
Use when you need to apply functional exception handling best practices in Java — including replacin...
Use when you need to refactor Java code for high performance — including memory/allocation reduction...
Use when you need to set up Java application profiling to detect and measure performance issues — in...
Use when you need to refactor Java code based on profiling analysis findings — including reviewing d...
Track parcels and shipments via the 17TRACK API. Manage a local SQLite database of tracked packages ...
Pre-process prompts through 3 compression layers before sending to paid APIs. Uses a local Ollama mo...
Use when you need to create a new Maven-based Spring Boot 4.0.x project using SDKMAN-managed Java an...
Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usa...
Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods,...
Use when you need to design, review, or improve validation in Spring Boot applications — including B...
Use when you need to design, review, or improve security in Spring Boot applications — including Sec...
Use when you need to design, review, or improve modular monoliths with Spring Modulith in Spring Boo...
Use when you need to write or review programmatic JDBC with Spring — including JdbcClient (Spring Fr...
Use when you need to design or implement Kafka messaging in Spring Boot — including topic design, pr...
Use when you need to implement acceptance tests from a Gherkin .feature file for Spring Boot applica...
37signals Rails coding principles and conventions from DHH, Jorge Manrubia, and the Fizzy/Basecamp/H...
Use when you need to create a new Maven-based Quarkus 3.x project using SDKMAN-managed Java and Quar...
Use when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config ...
Use when you need to design, review, or improve REST APIs with Quarkus REST (Jakarta REST) — includi...
Use when you need to design, review, or improve validation in Quarkus applications — including Bean ...
Use when you need Kafka messaging in Quarkus with SmallRye Reactive Messaging — including channel/to...
Use when you need to create a new Maven-based Micronaut 4.x project using SDKMAN-managed Java and Mi...
Use when building or reviewing Micronaut applications — Micronaut.run bootstrap, @Singleton/@Prototy...
Use when you need to design, review, or improve REST APIs with Micronaut — including @Controller rou...
Use when you need to design, review, or improve validation in Micronaut applications — including Bea...
Use when you need Kafka messaging in Micronaut — including @KafkaClient and @KafkaListener design, @...
人岗匹配。触发场景:用户要求匹配简历和职位;用户问这个候选人适合这个职位吗;用户要筛选最匹配的候选人。
Use when you need framework-agnostic OpenAPI 3.x guidance — spec structure, metadata and versioning,...
Use when you need framework-agnostic WireMock guidance — stub design, JSON or programmatic mappings,...
生成专业级 A股早报/晚报,包含大盘指数行情、市场情绪、K线走势图、 行业/概念板块排行、个股涨跌榜、主题新闻追踪、综合分析, 输出 Markdown + PNG 图表 + PDF。数据源为东方财富公...
Real-time monitoring of Greek AADE tax authority systems — tracks deadlines, rate changes, and compl...
GitHub repository access in containerized environments using REST API and credential detection. Use ...
Add a new tool to the backend OpenAI function calling system. Use when user mentions "new tool", "ad...
Add new core business logic functions to Catalyst-Relay. Use when creating pure functions, ADT opera...
Add new HTTP endpoints to Catalyst-Relay server. Use when creating routes, API endpoints, or HTTP ha...
Efficiently add Malli schemas to API endpoints in the Metabase codebase with proper patterns, valida...
Creates a new CLI command following the Commander.js pattern in src/commands/. Handles command regis...
Control AdGuard Home DNS filtering via HTTP API. Use when managing blocklists/allowlists, checking d...
Design, build, test, document, and secure production-grade APIs. Covers the full lifecycle from sche...
Turn your internal APIs into revenue streams. This skill helps you evaluate, price, package, and lau...
Complete methodology for building, scaling, and operating production Django applications. From proje...
Complete methodology for building, deploying, and scaling production FastAPI applications. Not a tut...
You are a Go production engineering expert. Follow this system for every Go project — from architect...
**Agent Earth Tool Discovery & Execution Engine**. This is the **PRIMARY** interface for discovering...
Lightweight agent registry and JIT router. Consult BEFORE performing specialized work such as code r...
Cross-machine agent communication via Agent Hotline CLI and REST API. Use when you need to message o...
Deploy the Agent HQ mission-control stack (Express + React + Telegram notifier / Jarvis summary) so ...
Generate complete, deployable AI agent skill packages from natural language descriptions. Includes 6...
Manages Agent Platform serving endpoints. Use when you need to create, list, describe, update, or de...
Related Guides
If you are an AI agent
Query this directory over HTTP
This site is a searchable directory of harness components for AI coding agents. Fetch objective JSON — names, descriptions, stars, and source links. Installation and selection are yours to decide.
GET https://claudeskills.info/api/v1/search?q=ui%2Fux
GET https://claudeskills.info/api/v1/search?type=subagent&q=review
GET https://claudeskills.info/api/v1/meta
See https://claudeskills.info/llms.txt