ENTITY MCP 2.x

MCP 2.x

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TOOL · CL_356258 · Nov 13 · 12:48

MCP 2.x structured output fails despite type annotations

The author encountered issues when migrating from MCP 1.x to MCP 2.x, specifically with the FastMCP tool, which was renamed to MCPServer. While the import path and basic tool registration were straightforward, the promi…