Harness Components

Claude Code Plugins

100 curated plugins — installable bundles that package skills, subagents, commands, and hooks into a single extension for Claude Code and compatible harnesses.

100 of 100

Superpowers

plugin

Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques

245,325claude-code

Ecc

plugin

Harness-native ECC workflows for Codex: shared skills, production-ready MCP configs, and selective-install-aligned conventions for TDD, security scanning, code review, and autonomous development.

225,587codex

Ui Ux Pro Max

plugin

UI/UX design intelligence. 50 styles, 21 palettes, 50 font pairings, 20 charts, 9 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient. Integrations: shadcn/ui MCP for component search and examples.

100,332claude-code

Claude Mem

plugin

Persistent memory system for Claude Code - seamlessly preserve context across sessions

85,660claude-code

Open Design

plugin

Local-first design app · 139 skills + 150 DESIGN.md systems · exposes projects/files/preview tools to your coding agent over stdio MCP. Requires the `od` daemon on PATH.

74,630claude-code

Ponytail

plugin

Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.

72,716claude-code

Connect Apps

plugin

Manage auth and connect to 500+ apps using Composio. Perform real actions from Claude Code - send emails, create issues, post messages, and more.

66,720claude-code

Career Ops

plugin

AI job search command center — evaluate offers, generate CVs, scan portals, track applications

58,337claude-code

Antigravity Awesome Skills

plugin

Universal agentic skill library for Claude Code with 1,254+ reusable skills across coding, security, design, product, and operations workflows.

42,285claude-code

Obsidian

plugin

Create and edit Obsidian vault files including Markdown, Bases, and Canvas. Use when working with .md, .base, or .canvas files in an Obsidian vault.

39,571claude-code

Oh My Claudecode

plugin

Multi-agent orchestration system for Claude Code

37,367claude-code

Academic Research Skills

plugin

Production-grade academic research pipeline for Claude Code: research → write → review → revise → finalize. 4 skills, 27 modes, 39-agent ensemble, v3.7.3 + v3.8 L3 claim-faithfulness gate, v3.9.0 cross-index triangulation, v3.10 triangulation policy layer, v3.11 deterministic citation verification gate (#182).

36,094claude-code

Asana

plugin

Asana project management integration. Create and manage tasks, search projects, update assignments, track progress, and integrate your development workflow with Asana's work management platform.

31,495claude-code

Claude Code Setup

plugin

Analyze codebases and recommend tailored Claude Code automations such as hooks, skills, MCP servers, and subagents.

31,495claude-code

Claude Md Management

plugin

Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.

31,495claude-code

Code Modernization

plugin

Modernize legacy codebases (COBOL, legacy Java/C++/.NET, monolith web apps) with a structured preflight / assess / map / extract-rules / brief / (reimagine | transform | uplift) / harden / status workflow. Cross-stack rewrites, greenfield reimagining, and same-stack version uplifts (e.g. .NET Framework → .NET 8); an interactive topology viewer; specialist agents; and optional dynamic-workflow orchestration with adversarial verification.

31,495claude-code

Code Review

plugin

Automated code review for pull requests using multiple specialized agents with confidence-based scoring

31,495claude-code

Code Simplifier

plugin

Agent that simplifies and refines code for clarity, consistency, and maintainability while preserving functionality

31,495claude-code

Commit Commands

plugin

Streamline your git workflow with simple commands for committing, pushing, and creating pull requests

31,495claude-code

Context7

plugin

Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.

31,495claude-code

Cwc Makers

plugin

Seamless onboarding for the Code-with-Claude Makers Cardputer: one /maker-setup command clones the build-with-claude repo, flashes UIFlow firmware, and installs the Claude Buddy app bundle onto a freshly-plugged-in M5Stack Cardputer-Adv.

31,495claude-code

Discord

plugin

Discord channel for Claude Code — messaging bridge with built-in access control. Manage pairing, allowlists, and policy via /discord:access.

31,495claude-code

Example Plugin

plugin

A comprehensive example plugin demonstrating all Claude Code extension options including commands, agents, skills, hooks, and MCP servers

31,495claude-code

Explanatory Output Style

plugin

Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)

31,495claude-code

Fakechat

plugin

Localhost iMessage-style web chat for Claude Code — test surface with file upload and edits. No tokens, no access control.

31,495claude-code

Feature Dev

plugin

Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review

31,495claude-code

Firebase

plugin

Google Firebase MCP integration. Manage Firestore databases, authentication, cloud functions, hosting, and storage. Build and manage your Firebase backend directly from your development workflow.

31,495claude-code

Beads

plugin

AI-supervised issue tracker for coding workflows. Manage tasks, discover work, and maintain context with simple CLI commands.

25,063claude-code

Planning With Files

plugin

Manus-style persistent markdown files for planning, progress tracking, and knowledge storage. Works with Claude Code, Kiro, Clawd CLI, Gemini CLI, Cursor, Continue, and 11+ AI coding assistants.

24,432claude-code

Cybersecurity Skills

plugin

607+ cybersecurity skills covering web security, pentesting, DFIR, threat intelligence, cloud security, malware analysis, and more.

24,114claude-code

Pm Ai Shipping

plugin

AI Shipping Kit — for PMs and founders accountable for AI-built code. Document a vibe-coded app, audit it for intended-vs-implemented security gaps and performance issues, and produce a reviewer-ready shipping packet.

22,325claude-code

Pm Data Analytics

plugin

Data analytics skills for PMs: SQL query generation and cohort analysis. Analyze user data, generate queries, and identify retention patterns.

22,325claude-code

Pm Execution

plugin

Execution and product management skills: PRDs, OKRs, roadmaps, sprints, pre-mortems, stakeholder maps, user stories, prioritization frameworks, and more.

22,325claude-code

Pm Go To Market

plugin

Go-to-market skills for PMs: GTM strategy, growth loops, GTM motions, beachhead segments, and ideal customer profiles.

22,325claude-code

Pm Market Research

plugin

Market research skills for PMs: user personas, market segmentation, sentiment analysis, and competitive analysis.

22,325claude-code

Pm Marketing Growth

plugin

Product marketing and growth skills: marketing ideas, value proposition statements, North Star metrics, product naming, and positioning.

22,325claude-code

Pm Product Discovery

plugin

Product discovery skills for PMs: ideation, experiments, assumption testing, feature prioritization, and customer interview synthesis.

22,325claude-code

Pm Product Strategy

plugin

Product strategy skills for PMs: vision, strategy canvas, value propositions, lean canvas, business model canvas, SWOT, PESTLE, Ansoff Matrix, Porter's Five Forces, and monetization.

22,325claude-code

Pm Toolkit

plugin

PM utility skills: resume review, NDA drafting, privacy policy generation, and grammar/flow checking. Essential tools for product managers beyond core product work.

22,325claude-code

Context Mode

plugin

MCP server that saves 98% of your context window with session continuity. Sandboxed code execution in 11 languages, FTS5 knowledge base with BM25 ranking, and automatic state restore across compactions.

18,527claude-code

Huggingface Skills

plugin

Agent Skills for AI/ML tasks including dataset creation, model training, evaluation, and research paper publishing on Hugging Face Hub

10,761claude-code

Fullstack Dev Skills

plugin

Comprehensive skill pack with 66 specialized skills for full-stack developers: 12 language experts (Python, TypeScript, Go, Rust, C++, Swift, Kotlin, C#, PHP, Java, SQL, JavaScript), 10 backend frameworks, 6 frontend/mobile, plus infrastructure, DevOps, security, and testing. Features progressive disclosure architecture for 50% faster loading.

10,391claude-code

Visual Explainer Marketplace

plugin

Plugin distribution for visual-explainer

9,154claude-code

Agentic Actions Auditor

plugin

Audits GitHub Actions workflows for security vulnerabilities in AI agent integrations (Claude Code Action, Gemini CLI, OpenAI Codex, GitHub AI Inference)

5,976claude-code

Ask Questions If Underspecified

plugin

Clarify ambiguous requirements by asking questions before implementing. Only when invoked explicitly.

5,976claude-code

Audit Context Building

plugin

Build deep architectural context through ultra-granular code analysis before vulnerability hunting

5,976claude-code

Building Secure Contracts

plugin

Comprehensive smart contract security toolkit based on Trail of Bits' Building Secure Contracts framework. Includes vulnerability scanners for 6 blockchains and 5 development guideline assistants.

5,976claude-code

Burpsuite Project Parser

plugin

Search and extract data from Burp Suite project files (.burp) for security analysis

5,976claude-code

C Review

plugin

Comprehensive C/C++ security code review with specialized bug-finding agents covering memory safety, type safety, concurrency, and Linux/Windows userspace-specific issues

5,976claude-code

Claude In Chrome Troubleshooting

plugin

Diagnose and fix Claude in Chrome MCP extension connectivity issues

5,976claude-code

Constant Time Analysis

plugin

Detect compiler-induced timing side-channels in cryptographic code

5,976claude-code

Culture Index

plugin

Interprets Culture Index survey results for individuals and teams

5,976claude-code

Devcontainer Setup

plugin

Create pre-configured devcontainers with Claude Code and language-specific tooling

5,976claude-code

Differential Review

plugin

Security-focused differential review of code changes with git history analysis and blast radius estimation

5,976claude-code

Dimensional Analysis

plugin

Annotates codebases with dimensional analysis comments documenting units, dimensions, and decimal scaling. Use when someone asks to annotate units in a codebase, perform a dimensional analysis, or find vulnerabilities in a DeFi protocol. Prevents dimensional mismatches and catches formula bugs early.

5,976claude-code

Dwarf Expert

plugin

Interact with and understand the DWARF debugging format

5,976claude-code

Entry Point Analyzer

plugin

Analyzes smart contract codebases to identify state-changing entry points for security auditing. Detects externally callable functions that modify state, categorizes them by access level, and generates structured audit reports.

5,976claude-code

Firebase Apk Scanner

plugin

Scan Android APKs for Firebase security misconfigurations including open databases, storage buckets, authentication issues, and exposed cloud functions. For authorized security research only.

5,976claude-code

Claude Code Setting

plugin

Manage Claude Code settings and MCP server configurations with best practices

4,801claude-code

Skill Creator

plugin

Create new skills, improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, or benchmark skill performance with variance analysis.

4,801claude-code

Vscode Extensions Toolkit

plugin

Comprehensive toolkit for configuring VSCode extensions including httpYac for API testing, Port Monitor for development server monitoring, and SFTP for static website deployment. Use when users need to configure VSCode extensions, set up API testing workflows, monitor development ports, or deploy static sites.

4,801claude-code

Claude Octopus

plugin

Multi-LLM orchestration with Double Diamond workflows, provider routing, safety gates, and automation. Dispatches to Codex, Gemini, Copilot, Qwen, Perplexity, OpenRouter, Ollama, and OpenCode from a single plugin.

3,735codex

Octo

plugin

Multi-tentacled orchestrator using Double Diamond methodology. v9.44.1. 32 expert personas, 49 commands, 54 skills. Commands '/octo:*'. Run /octo:setup for guided setup. Compatible with Claude Code and Factory AI Droid.

3,735claude-code

Dotnet Ai

plugin

AI and ML skills for .NET: technology selection, LLM integration, agentic workflows, RAG pipelines, MCP, and classic ML with ML.NET.

3,632claude-code

Dotnet Data

plugin

Skills for .NET data access and Entity Framework related tasks.

3,632claude-code

Dotnet

plugin

Common everyday C#/.NET coding skills. Expected to be useful to all .NET developers.

3,632claude-code

Arscontexta

plugin

Conversational derivation engine — generate agent-native memory architecture from natural conversation. 15 kernel primitives, 26 commands, 17 feature blocks, 3 presets.

3,428claude-code

Swiftui Expert

plugin

Expert SwiftUI guidance for state management, view composition, performance, and iOS 26+ Liquid Glass adoption.

3,167claude-code

Playwright Skill

plugin

Claude Code Skill for general-purpose browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp, and autonomously handles any browser automation task.

2,860claude-code

Azure Sdk Dotnet

plugin

Azure SDK patterns and best practices for .NET developers covering AI, resource management, identity, messaging, and Key Vault libraries.

2,665claude-code

Azure Sdk Java

plugin

Azure SDK patterns and best practices for Java developers covering AI, communication, storage, identity, monitoring, and management libraries.

2,665claude-code

Azure Sdk Python

plugin

Azure SDK patterns and best practices for Python developers covering AI, storage, identity, monitoring, messaging, and management libraries.

2,665claude-code

Azure Sdk Rust

plugin

Azure SDK patterns and best practices for Rust developers covering identity, Key Vault, storage, Cosmos DB, and Event Hubs.

2,665claude-code

Azure Sdk Typescript

plugin

Azure SDK patterns and best practices for TypeScript/Node.js developers covering AI, storage, identity, monitoring, and messaging libraries.

2,665claude-code

Azure

plugin

Microsoft Azure MCP and Skills integration for cloud resource management, deployments, and Azure services. Manage your Azure infrastructure, monitor applications, and deploy resources directly from Claude Code.

2,665claude-code

Deep Wiki

plugin

AI-powered wiki generator for code repositories. Generates comprehensive, Mermaid-rich documentation with dark-mode VitePress sites, onboarding guides, deep research, and source citations. Inspired by OpenDeepWiki and deepwiki-open.

2,665claude-code

Microsoft 365 Agents Toolkit

plugin

Toolkit for building and evaluating Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, capability configuration, and eval workflows.

2,665claude-code

Microsoft Foundry

plugin

Foundry-platform fluency for any language. One orchestrator + 10 sub-skills covering hosted agents, intent-based toolboxes, multi-agent workflows, Foundry IQ knowledge bases, managed skills, long-term memory, observability and evaluations, and governance via the Foundry Control Plane. Bundles Azure MCP, Foundry MCP (mcp.ai.azure.com), and Microsoft Docs MCP for live operations and always-current docs.

2,665claude-code

Expo

plugin

Official Expo skills for building, deploying, upgrading, and debugging Expo apps

2,157claude-code

Terraform Skill

plugin

Terraform and OpenTofu best-practices skill for writing, reviewing, debugging, testing, CI, scans, and state operations.

2,140codex

Cloudflare

plugin

Skills for the Cloudflare developer platform: Workers, Durable Objects, Agents SDK, MCP servers, Wrangler CLI, and web performance

2,040claude-code

Pg Aiguide

plugin

PostgreSQL documentation and best practices through semantic search and curated skills, including TimescaleDB and Tiger Cloud ecosystem tools.

1,779universal

Design Ops

plugin

Streamline design operations with critique frameworks, handoff specs, sprint planning, review processes, and team workflows.

1,721claude-code

Design Research

plugin

User research skills for designers: personas, empathy maps, journey maps, interview scripts, usability testing, and card sorting.

1,721claude-code

Design Systems

plugin

Build, document, and maintain scalable design systems — from tokens and components to accessibility and theming.

1,721claude-code

Stripe

plugin

Stripe plugin for Cursor to help with Stripe integrations including best practices, API/SDK upgrade guidance, and the Stripe MCP server.

1,644universal

Ai Devkit

plugin

Make AI coding agents follow a repeatable engineering workflow with memory, verification, skills, and multi-agent setup

1,541claude-code

Token Optimizer

plugin

Audit, fix, and monitor Claude Code context window usage. Find the ghost tokens.

1,523claude-code

Safety Net

plugin

Block destructive git and filesystem commands before execution

1,425claude-code

Claudeclaw

plugin

Cron-like daemon that runs Claude prompts on a schedule

1,236claude-code

Customaize Agent

plugin

Commands and skills for writing and refining commands, hooks, skills for Claude Code, includes Anthropic Best Practices and Agent Persuasion Principles that can be useful for sub-agent workflows.

1,197claude-code

Ddd

plugin

Introduces command to update CLAUDE.md with best practices for domain-driven development, focused on quality of code, includes Clean Architecture, SOLID principles, and other design patterns.

1,197claude-code

Fpf

plugin

First Principles Framework (FPF) for structured reasoning using workflow command pattern. Implements ADI (Abduction-Deduction-Induction) cycle via propose-hypotheses workflow with fpf-agent for hypothesis generation, logical verification, empirical validation, and auditable decision-making. Includes utility commands for status, query, decay, actualize, and reset.

1,197claude-code

Pm Accounting

plugin

Accounting & bookkeeping skills for finance ops and small businesses: Invoice Generator, Expense Policy, Collections Email, Financial Statement Explainer, Bookkeeping Categorization, and Cash Flow Forecast. Practical money admin — drafting aids, not tax/accounting advice.

1,128claude-code

Pm Advanced

plugin

Advanced PM skills: AI Product Canvas, Multi-Source Signal Synthesiser, Experiment Designer, Design Handoff Brief. For senior PMs working on complex or AI-powered products.

1,128claude-code

Pm Agentops

plugin

Operate AI agents and LLM features in production: prompt regression suites, model migration plans, context-engineering reviews, agent incident postmortems, and observability specs — plus the pm-ai evaluation and cost skills they build on.

1,128claude-code

Ck

plugin

Cavekit — compressed spec-driven dev. Full loop (grill → spec → research → review → build) over one SPEC.md file: three core commands + four reach-for. Caveman encoding. Bug-to-spec backprop.

1,072claude-code

Ai Engineer

plugin

Use this agent when implementing AI/ML features, integrating language models, building recommendation systems, or adding intelligent automation to applications. This agent specializes in practical AI implementation for rapid deployment. Examples:\n\n<example>\nContext: Adding AI features to an app\nuser: "We need AI-powered content recommendations"\nassistant: "I'll implement a smart recommendation engine. Let me use the ai-engineer agent to build an ML pipeline that learns from user behavior."\n<commentary>\nRecommendation systems require careful ML implementation and continuous learning capabilities.\n</commentary>\n</example>\n\n<example>\nContext: Integrating language models\nuser: "Add an AI chatbot to help users navigate our app"\nassistant: "I'll integrate a conversational AI assistant. Let me use the ai-engineer agent to implement proper prompt engineering and response handling."\n<commentary>\nLLM integration requires expertise in prompt design, token management, and response streaming.\n</commentary>\n</example>\n\n<example>\nContext: Implementing computer vision features\nuser: "Users should be able to search products by taking a photo"\nassistant: "I'll implement visual search using computer vision. Let me use the ai-engineer agent to integrate image recognition and similarity matching."\n<commentary>\nComputer vision features require efficient processing and accurate model selection.\n</commentary>\n</example>

866claude-code

Ai Ethics Governance Specialist

plugin

Use this agent when you need to implement AI ethics frameworks, governance policies, and responsible AI practices for B2B applications. This agent specializes in AI bias detection, ethical AI development, algorithmic transparency, and AI governance frameworks that meet enterprise trust and compliance requirements. Examples:

866claude-code

Analytics Reporter

plugin

Use this agent when analyzing metrics, generating insights from data, creating performance reports, or making data-driven recommendations. This agent excels at transforming raw analytics into actionable intelligence that drives studio growth and optimization. Examples:\n\n<example>\nContext: Monthly performance review needed

866claude-code