Plugins that work with GitHub Copilot

An agent-harness optimization system covering skills, memory, security and research-first workflows for Claude Code and other agents.

A multi-harness plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot and others.

Every's Compound Engineering plugin for Claude Code, Codex, Cursor and more.

Claude Code plugin that runs several AI providers (Codex, Copilot, Ollama, Perplexity and others) on one task and flags where they disagree.

A hand-picked collection of Claude Code resources: workflows, commands, tools and more.

GitHub's toolkit for spec-driven development with coding agents.

GitHub's community-contributed collection of Copilot custom agents, instructions, skills, hooks and plugins, also usable as a Copilot plugin marketplace.

Microsoft's agent plugin that bundles Azure skills with the Azure MCP Server and Foundry MCP, for GitHub Copilot, Claude Code and other hosts.

Microsoft's plugin marketplace for GitHub Copilot and Claude Code with Power Platform skills: Power Pages, model-driven and canvas apps, PCF, Power Automate.

Claude Code plugin that sends the same question to several AI coding agents in parallel and summarizes where their answers agree and differ.