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1 recipe tagged ts2740.

Fix 'keyValidator._parse is not a function' and empty inputSchema in TypeScript MCP servers (zod 4 vs MCP SDK versions)

Tested on @modelcontextprotocol/sdk 1.22.0/1.23.0/1.32.2 x zod 4.6.7/3.25.76/3.23.8: SDK <=1.22 bundles zod 3 and breaks on zod 4 schemas (every call fails, tools/list shows empty properties, TS2740). Upgrade the SDK to >=1.23, or pin zod 3 / import zod/v3. Version matrix, npm ls check and verificat

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