Plugins

OpenAI's official plugin: Codex reviews of your changes and task delegation to Codex from inside a Claude Code session

A plugin from Every: a brainstorm, plan, build, review and capture loop so each next task gets easier

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

A Claude Code plugin for the Phoenix LLM observability platform: remote MCP plus skills for traces, evals and instrumentation

A Claude Code and Codex plugin with skills for code research, tests, refactoring and independent review of finished changes

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

A plugin marketplace and installer for the full dev loop: task selection, review, cleanup, PRs and releases

QA agents, skills and an MCP server: test generation, coverage gaps, flaky tests, security scans and chaos testing