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Development

Tools for software development, testing, and integration

2,401
Skills
Home/Categories/Development

Algorithmic Art

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration

157.7kAnthropic
Creative
Developer Tools

Artifacts Builder

Build complex claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui components

157.7kAnthropic
Developer Tools

MCP Builder

Guide for creating high-quality MCP servers to integrate external APIs and services

157.7kAnthropic
Developer Tools

Web App Testing

Test local web applications using Playwright for UI verification and debugging

157.7kAnthropic
Developer Tools

Superpowers

A comprehensive workflow system for Claude with 20 proven development techniques

244.4kJesse Vincent
workflow
tdd
debugging
git

Changelog Generator

Automatically creates user-facing changelogs from git commits by analyzing history and categorizing changes

66.6kComposioHQ
Developer Tools

FFUF Web Fuzzing

Fast web fuzzer for discovering hidden content, directories, files, and vulnerabilities during penetration testing

195jthack
Security
Developer Tools

iOS Simulator Skill

21 production-ready scripts for iOS app testing, building, and automation with semantic UI navigation

1.1kConor Luddy
Developer Tools
Testing

Playwright Browser Automation

General-purpose browser automation with Playwright for testing pages, forms, responsive design, and UX validation

2.9klackeyjb
Developer Tools
Testing

Web Asset Generator

Generate favicons, app icons (PWA), and social media Open Graph images from logos or text

435alonw0
Design
Developer Tools

AWS Skills

AWS development with CDK best practices, cost optimization MCP servers, and serverless/event-driven architecture patterns

326zxkane
Developer Tools

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

127bluzername
Developer Tools

D3.js Visualization

Teaches Claude to produce D3 charts and interactive data visualizations

205chrisvoncsefalvay
Developer Tools
Data-analysis

jules

Delegate coding tasks to Google Jules AI agent for async bug fixes, documentation, tests, and feature implementation on GitHub repos

330sanjay3290
Developer Tools

Move Code Quality Checker

Analyzes Move language packages against the official Move Book Code Quality Checklist for Move 2024 Edition compliance and best practices

211NickPappas
Developer Tools

prompt-engineering

Teaches well-known prompt engineering techniques and patterns, including Anthropic best practices and agent persuasion principles

1.2kNeoLabHQ
Developer Tools
AI & ML

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

84omkamal
Developer Tools

Reddit Content Fetcher

Fetches Reddit content via Gemini CLI when WebFetch is blocked or returns 403 errors

9.0kykdojo
Developer Tools

Skill Seekers (Doc Converter)

Automatically converts any documentation website into a Claude AI skill in minutes

14.3kyusufkaraaslan
Developer Tools
Meta

software-architecture

Implements design patterns including Clean Architecture, SOLID principles, and comprehensive software design best practices

1.2kNeoLabHQ
Developer Tools

subagent-driven-development

Dispatches independent subagents for individual tasks with code review checkpoints between iterations for rapid, controlled development

1.2kNeoLabHQ
Developer Tools

postgres

Execute safe read-only SQL queries against PostgreSQL databases with multi-connection support and defense-in-depth security

330sanjay3290
Developer Tools
Data-analysis

n8n Workflow Skills

Enables AI assistants to directly understand and operate n8n workflows

367haunchen
Developer Tools
Productivity

git-pushing

Automate git operations and repository interactions

636mhattingpete
Developer Tools
Productivity

google-workspace-skills

Suite of Google Workspace integrations: Gmail, Calendar, Chat, Docs, Sheets, Slides, and Drive with cross-platform OAuth

330sanjay3290
Developer Tools
Productivity

outline

Search, read, create, and manage documents in Outline wiki instances (cloud or self-hosted)

330sanjay3290
Developer Tools
Productivity

review-implementing

Evaluate code implementation plans and align with specs

636mhattingpete
Developer Tools
Productivity

test-fixing

Detect failing tests and propose patches or fixes

636mhattingpete
Developer Tools
Productivity

Swift Concurrency Migration

Swift Concurrency Migration guide

54kylehughes
Developer Tools

Obsidian Plugin Development

Obsidian.md plugin development

160gapmiss
Developer Tools
Productivity

Stream Coding

Stream Coding methodology

95frmoretto
Developer Tools

SwiftUI Development Skills

Apple-authored SwiftUI and platform guidance extracted from Xcode

95ameyalambat128
Developer Tools

Dev Browser

Web browser capability for agents

6.4kSawyerHood
Developer Tools

Vectorize MCP Worker

Edge-native MCP server patterns for production RAG

23dannwaneri
Developer Tools
AI & ML

Agent Manager

Manage local CLI AI agents via tmux (start/stop/monitor/assign + cron scheduling)

24fractalmind-ai
Developer Tools
Productivity

Google Sheets CLI

Google Sheets CLI automation

65gmickel
Developer Tools
Productivity

Context Engineering

Context engineering techniques

16.8kmuratcankoylan
Developer Tools
AI & ML

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

157.7kanthropics
Design
Developer Tools

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

1.2kNeoLabHQ
AI & ML
Developer Tools

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

1.2kNeoLabHQ
AI & ML
Developer Tools

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

1.2kNeoLabHQ
Developer Tools
Testing

Review Pull Request

Multi-agent PR review system with specialized reviewers, inline comments, and automatic PR description generation using GitHub CLI

1.2kNeoLabHQ
Developer Tools
Testing

Architecture Diagram Creator

Creates comprehensive HTML architecture diagrams with SVG visualizations showing business context, data flows, processing pipelines, and system architecture

636mhattingpete
Developer Tools
Design

Agent Evaluation Framework

Comprehensive Claude Code agent evaluation framework with multi-dimensional scoring, LLM-as-Judge mode, and research-backed performance variance analysis

1.2kNeoLabHQ
AI & ML
Developer Tools

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

1.2kNeoLabHQ
AI & ML
Developer Tools

Self-Reflection Framework

Iterative self-improvement system with task complexity grading, strict quality gatekeeper role, confidence thresholds, and verification checklists

1.2kNeoLabHQ
AI & ML
Developer Tools

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

1.2kNeoLabHQ
AI & ML
Developer Tools

MySQL Integration

Execute safe read-only SQL queries against MySQL databases with multi-connection support, SSL encryption, and defense-in-depth security

330sanjay3290
Data-analysis
Developer Tools

Microsoft SQL Server Integration

Execute safe read-only queries against MS SQL Server databases with multi-connection support, TLS encryption, and comprehensive security features

330sanjay3290
Data-analysis
Developer Tools

Codebase Documenter

Generates comprehensive codebase documentation covering architecture (with Mermaid diagrams), directory structure, key components, integrations, data models, and development setup

636mhattingpete
Developer Tools
Productivity

Conventional Commit Helper

Conventional commit format guide with auto-staging, diff analysis, multi-change split suggestions, and 30+ emoji mappings for commit types

1.2kNeoLabHQ
Developer Tools
Productivity

Create PR Workflow

GitHub CLI-based PR creation workflow with pre-checks for uncommitted code, conventional commit formatting, and emoji title conventions

1.2kNeoLabHQ
Developer Tools
Productivity

Auto Write Tests

Automated test writing orchestration system that discovers test infrastructure, analyzes code changes, and dispatches parallel agents to write comprehensive test coverage

1.2kNeoLabHQ
Testing
Developer Tools

Auto Fix Tests

Systematic failing test repair orchestration with auto-discovery, parallel agent fixes, and full verification, emphasizing fixing tests without modifying business logic

1.2kNeoLabHQ
Testing
Developer Tools

Codebase Auditor

Comprehensive codebase audit across 6 dimensions: architecture, code quality, security (OWASP Top 10), performance, testing coverage, and maintainability with prioritized action plan

636mhattingpete
Developer Tools
Security

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

1.2kNeoLabHQ
AI & ML
Developer Tools

Create Skill (TDD Method)

TDD methodology for skill creation — test with subagents first, write skill to address failures, iterate until bulletproof against rationalization

1.2kNeoLabHQ
AI & ML
Developer Tools

Tree of Thoughts Reasoning

Systematic ToT reasoning framework with 6 phases: explore, prune, expand, evaluate, adaptive strategy selection, and synthesis with parallel agent dispatch

1.2kNeoLabHQ
AI & ML
Developer Tools

Flowchart Creator

Creates HTML flowcharts and process diagrams with SVG-based nodes, decision diamonds, connecting arrows, and optional swimlanes with color-coded types

636mhattingpete
Developer Tools
Design

Parallel Agent Dispatch

Launch multiple sub-agents in parallel with intelligent model selection, Zero-shot CoT reasoning, independence verification, and batch operation scheduling

1.2kNeoLabHQ
AI & ML
Developer Tools

Execute and Judge Loop

Single-task execution with LLM-as-Judge verification in an iterative loop, supporting auto-retry and strict orchestrator role separation

1.2kNeoLabHQ
AI & ML
Developer Tools

A3 Problem Analysis

Toyota A3 problem analysis template covering 7 stages: background, current state, goals, root cause analysis, countermeasures, implementation plan, and follow-up

1.2kNeoLabHQ
Productivity
Developer Tools

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

330sanjay3290
Developer Tools
Productivity

Ensemble Problem Solving

Generates 3 diverse solutions using different strategies (simplicity/performance/extensibility), evaluates with weighted rubric, and selects best approach with rationale

636mhattingpete
Developer Tools
Productivity

Spec-Driven Brainstorm

Collaborative brainstorming that refines ideas into designs through progressive questioning, generating 6 solutions (3 high-probability + 3 exploratory) with validation

1.2kNeoLabHQ
Developer Tools
Productivity

Spec-Driven Planning

Task specification refinement pipeline with 6 stages (parallel analysis, architecture synthesis, decomposition, parallelization, verification, promotion) and quality gates

1.2kNeoLabHQ
Developer Tools
Productivity

Create Git Hook

Claude Code git hook creation workflow with project analysis, intelligent suggestions for TypeScript/Prettier/ESLint/security, auto-configuration, and testing

1.2kNeoLabHQ
Developer Tools
Productivity

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

1.2kNeoLabHQ
Developer Tools
Productivity

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

1.2kNeoLabHQ
Developer Tools
Productivity

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

1.2kNeoLabHQ
AI & ML
Developer Tools

First Principles Hypothesis Framework

First Principles reasoning framework with hypothesis generation, logical and evidence validation, layered trust audit (L0/L1/L2), and reliability scoring

1.2kNeoLabHQ
AI & ML
Developer Tools

Technical Doc Creator

Creates HTML technical documentation with syntax-highlighted code blocks, API endpoint references, architecture diagrams, and color-coded HTTP method indicators

636mhattingpete
Developer Tools
Creative

Root Cause Tracing

Backward debugging methodology tracing from error symptoms through call chains to find the original trigger point, with 5-step systematic process

1.2kNeoLabHQ
Developer Tools
Testing

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

66.6kComposioHQ
Learning
Developer Tools

Analyze GitHub Issue

Analyzes GitHub issues and creates technical spec documents with problem statement, technical approach, implementation plan, and testing strategy

1.2kNeoLabHQ
Developer Tools
Productivity

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

1.2kNeoLabHQ
Developer Tools
Productivity

Git Worktrees Reference

Complete reference for git worktree concepts and commands: create, manage, list, move, lock, and remove operations with practical examples

1.2kNeoLabHQ
Developer Tools

Build MCP Server

MCP server development guide with agent-centric design principles, workflow-first approach, and dual Python (FastMCP) / TypeScript implementation support

1.2kNeoLabHQ
AI & ML
Developer Tools

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

66.6kComposioHQ
Developer Tools
AI & ML

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

636mhattingpete
Developer Tools
Productivity

Code Transfer Between Files

Transfers code between files with line-based precision — extracting functions/classes and inserting at specific positions, reorganizing code into modules

636mhattingpete
Developer Tools
Productivity

Feature Planning

Breaks down feature requests into detailed implementation plans with file paths, line numbers, architecture decisions, dependency analysis, and sequential task ordering

636mhattingpete
Developer Tools
Productivity

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

636mhattingpete
Developer Tools
Productivity

GitHub Copilot Skills

324 official GitHub Copilot plugin skills across Azure, .NET, Docker, and more

36.1kGitHub
copilot
github
azure
dotnet

Everything Claude Code

The ultimate Claude Code optimization system with 86+ skills, rules, hooks, and agent configurations

225.2kaffaan-m
claude-code
skills
rules
hooks

Anthropic Official Skills

16 official skills from Anthropic, the creators of Claude — frontend design, PDF, DOCX, XLSX, MCP builder, and more

157.7kAnthropic
anthropic
claude
official
frontend-design

OpenAI Official Skills

37 official skills from OpenAI for Codex CLI and multi-agent development

23.2kOpenAI
openai
codex
official
agents

Microsoft Skills

333 skills across Azure, .NET, AI Foundry — the largest enterprise skills collection

2.7kMicrosoft
microsoft
azure
dotnet
csharp

Google AI Skills

11 official skills from Google Labs and Gemini for AI-powered development

6.3kGoogle
google
gemini
stitch
ai

Vercel Skills

8 official Vercel skills for Next.js, React, and edge deployment

28.6kVercel
vercel
nextjs
react
edge

Cloudflare Skills

9 official Cloudflare skills for Workers, Pages, R2, and edge computing

2.0kCloudflare
cloudflare
workers
pages
r2

Hugging Face Skills

13 official Hugging Face skills for transformers, model hub, and ML pipelines

10.8kHugging Face
huggingface
transformers
ml
models

WordPress Skills

26 official WordPress and Automattic skills for blocks, themes, and plugin development

1.8kWordPress
wordpress
automattic
gutenberg
blocks

All Development skills

showing 60 of 2,401
031-architecture-adr-functional-requirements

Facilitates conversational discovery to create Architectural Decision Records (ADRs) for functional ...

032-architecture-adr-non-functional-requirements

Facilitates conversational discovery to create Architectural Decision Records (ADRs) for non-functio...

0protocol

Agents can sign plugins, rotate credentials without losing identity, and publicly attest to behavior...

110-java-maven-best-practices

Use when you need to review, improve, or troubleshoot a Maven pom.xml file — including dependency ma...

111-java-maven-dependencies

Use when you need to add or evaluate Maven dependencies that improve code quality — including nullne...

114-java-maven-search

Covers Maven Central search using structured Search API fields and URL construction, plus project-lo...

12-factor-app

The Twelve-Factor App methodology for building scalable, maintainable cloud-native applications. Use...

123-java-design-patterns

Use when you need to select, review, or implement Java design and integration patterns — including c...

126-java-exception-handling

Use when you need to apply Java exception handling best practices — including using specific excepti...

128-java-generics

Use when you need to review, improve, or refactor Java code for generics quality — including avoidin...

142-java-functional-programming

Use when you need to apply functional programming principles in Java — including writing immutable o...

143-java-functional-exception-handling

Use when you need to apply functional exception handling best practices in Java — including replacin...

145-java-refactoring-high-performance

Use when you need to refactor Java code for high performance — including memory/allocation reduction...

161-java-profiling-detect

Use when you need to set up Java application profiling to detect and measure performance issues — in...

163-java-profiling-refactor

Use when you need to refactor Java code based on profiling analysis findings — including reviewing d...

17track

Track parcels and shipments via the 17TRACK API. Manage a local SQLite database of tracked packages ...

3-Layer Token Compressor — Cut AI API Costs 40-60%

Pre-process prompts through 3 compression layers before sending to paid APIs. Uses a local Ollama mo...

300-frameworks-spring-boot-create-project

Use when you need to create a new Maven-based Spring Boot 4.0.x project using SDKMAN-managed Java an...

301-frameworks-spring-boot-core

Use when you need to review, improve, or build Spring Boot 4.0.x applications — including proper usa...

302-frameworks-spring-boot-rest

Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods,...

303-frameworks-spring-boot-validation

Use when you need to design, review, or improve validation in Spring Boot applications — including B...

304-frameworks-spring-boot-security

Use when you need to design, review, or improve security in Spring Boot applications — including Sec...

305-frameworks-spring-boot-modulith

Use when you need to design, review, or improve modular monoliths with Spring Modulith in Spring Boo...

311-frameworks-spring-jdbc

Use when you need to write or review programmatic JDBC with Spring — including JdbcClient (Spring Fr...

314-frameworks-spring-kafka

Use when you need to design or implement Kafka messaging in Spring Boot — including topic design, pr...

323-frameworks-spring-boot-testing-acceptance-tests

Use when you need to implement acceptance tests from a Gherkin .feature file for Spring Boot applica...

37signals-rails

37signals Rails coding principles and conventions from DHH, Jorge Manrubia, and the Fizzy/Basecamp/H...

400-frameworks-quarkus-create-project

Use when you need to create a new Maven-based Quarkus 3.x project using SDKMAN-managed Java and Quar...

401-frameworks-quarkus-core

Use when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config ...

402-frameworks-quarkus-rest

Use when you need to design, review, or improve REST APIs with Quarkus REST (Jakarta REST) — includi...

403-frameworks-quarkus-validation

Use when you need to design, review, or improve validation in Quarkus applications — including Bean ...

414-frameworks-quarkus-kafka

Use when you need Kafka messaging in Quarkus with SmallRye Reactive Messaging — including channel/to...

500-frameworks-micronaut-create-project

Use when you need to create a new Maven-based Micronaut 4.x project using SDKMAN-managed Java and Mi...

501-frameworks-micronaut-core

Use when building or reviewing Micronaut applications — Micronaut.run bootstrap, @Singleton/@Prototy...

502-frameworks-micronaut-rest

Use when you need to design, review, or improve REST APIs with Micronaut — including @Controller rou...

503-frameworks-micronaut-validation

Use when you need to design, review, or improve validation in Micronaut applications — including Bea...

514-frameworks-micronaut-kafka

Use when you need Kafka messaging in Micronaut — including @KafkaClient and @KafkaListener design, @...

51mee-resume-match

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。

701-technologies-openapi

Use when you need framework-agnostic OpenAPI 3.x guidance — spec structure, metadata and versioning,...

702-technologies-wiremock

Use when you need framework-agnostic WireMock guidance — stub design, JSON or programmatic mappings,...

a-share-daily-report

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...

aade-api-monitor

Real-time monitoring of Greek AADE tax authority systems — tracks deadlines, rate changes, and compl...

accessing-github-repos

GitHub repository access in containerized environments using REST API and credential detection. Use ...

add-backend-tool

Add a new tool to the backend OpenAI function calling system. Use when user mentions "new tool", "ad...

add-core-function

Add new core business logic functions to Catalyst-Relay. Use when creating pure functions, ADT opera...

add-endpoint

Add new HTTP endpoints to Catalyst-Relay server. Use when creating routes, API endpoints, or HTTP ha...

add-malli-schemas

Efficiently add Malli schemas to API endpoints in the Metabase codebase with proper patterns, valida...

adding-a-command

Creates a new CLI command following the Commander.js pattern in src/commands/. Handles command regis...

adguard

Control AdGuard Home DNS filtering via HTTP API. Use when managing blocklists/allowlists, checking d...

afrexai-api-architect

Design, build, test, document, and secure production-grade APIs. Covers the full lifecycle from sche...

afrexai-api-monetization

Turn your internal APIs into revenue streams. This skill helps you evaluate, price, package, and lau...

afrexai-django-production

Complete methodology for building, scaling, and operating production Django applications. From proje...

afrexai-fastapi-production

Complete methodology for building, deploying, and scaling production FastAPI applications. Not a tut...

afrexai-go-production

You are a Go production engineering expert. Follow this system for every Go project — from architect...

Ag-earth

**Agent Earth Tool Discovery & Execution Engine**. This is the **PRIMARY** interface for discovering...

agent-dispatch

Lightweight agent registry and JIT router. Consult BEFORE performing specialized work such as code r...

agent-hotline

Cross-machine agent communication via Agent Hotline CLI and REST API. Use when you need to message o...

agent-hq

Deploy the Agent HQ mission-control stack (Express + React + Telegram notifier / Jarvis summary) so ...

agent-launchpad

Generate complete, deployable AI agent skill packages from natural language descriptions. Includes 6...

agent-platform-endpoint-management

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