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Skills · plugins · MCP · rules114 official

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Claude Code84 extensions OpenAI Codex14 extensions

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GitHub Copilot1 extensions Any MCP client46 extensions

Skill · 19Reusable instructions and scripts the agent loads for a taskAlgorithmic Art, brand-guidelines, Canvas Design… Plugin · 42Bundles of skills, commands, hooks and agentsAgent SDK Development Plugin, C# LSP, clangd LSP… MCP server · 49Connect the agent to tools, data and servicesApify MCP Server, Atlassian Rovo MCP Server, AWS API MCP Server… Rules & instructions · 6Project instructions the agent reads every sessionAGENTS.md, CLAUDE.md, Cursor Rules…

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Plugin Apache-2.0

Gemini CLI Extensions

by Google

Gemini CLI extensions package prompts, MCP servers, commands, themes, hooks, sub-agents and skills; installed from GitHub.

Does: 5 things
Install: 4 steps
Works with: Gemini CLI