MCP vs. Agent Harness
I saw that Agent Harness has tools info right, and then MCP also has the same; then how are they different?
MCP is a standard that agent harness can implement that extends the harness with things like tools and prompts. Harness can have their own internal tools. MCP tools are external tools attached to the harness.
This is something you should be asking ChatGPT, and continue the conversation in a way that you learn what you need.