Plugins

Anthropic's plugin marketplace for Claude Code: in-house plugins plus vetted third-party ones, installed via /plugin

Trail of Bits plugin marketplace for security work: smart contracts, C/C++ and Rust review, Semgrep, CodeQL and fuzzing

Official skills and agents from the .NET team: performance, MSBuild, NuGet, upgrades, testing, ASP.NET Core, Blazor and MAUI

Cloudflare's official agent skills: Workers, Durable Objects, wrangler, Pages, storage and an MCP server

94 plugins, 202 agents, 183 skills and 105 commands for Claude Code, generated for Codex, Cursor, OpenCode and Copilot

An Anthropic GitHub Action that checks pull request changes for vulnerabilities with Claude and leaves comments

A Claude Code plugin marketplace with ready sets of agents, slash commands, hooks and skills, plus a search site

A large Claude Code plugin and skill marketplace with the ccpi CLI and a category-based catalog site

Skills the Sentry team uses for development: code review, bug hunting, security audits, commits, PRs and skill scanning

A Google extension for Gemini CLI that finds vulnerabilities in branch changes and checks dependencies with OSV-Scanner

A large Claude Code and Cursor plugin: development skills, specialist agents and hooks with quality gates and git protection

A CLI and marketplace of hundreds of Claude Code plugins: lint and test hooks, language and framework skills, discipline agents

A Claude Code hook that rates Bash command risk with rules and Haiku, asking for approval only on risky commands