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MCP, A2A, Skills, Plugins and Harnesses: How the Pieces of an AI Agent Fit Together

If you’ve spent any time around AI lately, you’ve heard the terms: agents, MCP, A2A, skills, plugins, harnesses, multi-agent systems. People use them interchangeably, or drop them into conversation without explanation. I recently worked through the Problem-First AI course by Aishwarya Reganti and K…

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  1. 2026-11-07 18:08 · DEV Community — AI
    MCP, A2A, Skills, Plugins and Harnesses: How the Pieces of an AI Agent Fit Together

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