UntestedFix MCP 'Output validation error' and 'Structured content does not match the tool's output schema' (outputSchema / struc
Tested (TS SDK 1.32.1, zod 4): every outputSchema error a tool can hit, server side and client side. Missing structuredContent, wrong types, missing fields, extra keys that pass the server but make the client throw 'must NOT have additional properties', array output schemas that fail with '_zod', an
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