Checked against primary sources · Updated Oct 2026

The verified map of the agent stack

Official MCP servers, skills published by the vendors themselves, and which coding agents actually support MCP, Agent Skills, AGENTS.md and A2A. No scraped lists, no look-alikes.

official MCP servers
75
official MCP servers
vendor-published skills
120
vendor-published skills
harnesses compared
22
harnesses compared
standards explained
7
standards explained

Which agent supports what

The standards your stack depends on, by harness. Every tick links to a source.

All 22 harnesses
HarnessMCPAgent SkillsAGENTS.mdACP
Claude CodeAnthropicMCP: supportedAgent Skills: supported?AGENTS.md: not yet verifiedACP: supported
CodexOpenAIMCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
Gemini CLIGoogleMCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
CursorAnysphereMCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
GitHub CopilotGitHub / MicrosoftMCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
OpenCodeAnomaly (SST)MCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
gooseBlock, now at the Agentic AI FoundationMCP: supportedAgent Skills: supportedAGENTS.md: supportedACP: supported
Hermes AgentNous Research?MCP: not yet verifiedAgent Skills: supported?AGENTS.md: not yet verifiedACP: supported

Official MCP servers

Published under the vendor's own namespace in the official MCP registry, with install commands.

All 75 servers

Skills from the source

Agent Skills published in the vendors' own repositories. Know who wrote the instructions your agent follows.

All 120 skills

Setup guides

Short, sourced answers to the configuration questions people search for most.

All 27 guides

Standards, explained briefly

Current versions, governance and when to use each one.

All standards

Get the weekly agent stack update

New official MCP servers, spec changes and harness releases, checked against the source. One email a week, no fluff.

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