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perf: construct the default Ajv engine lazily on first validation (#2458)

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Felix Weinberger 2026-07-13 17:09:06 +01:00 • committed by GitHub
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'@modelcontextprotocol/client': patch
'@modelcontextprotocol/server': patch
---
Construct the default Ajv validation engine lazily on first validation. Creating a `Client` or `Server` no longer pays the ajv + ajv-formats instantiation cost at startup when no JSON Schema validation ever runs.