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MCP Router: protocols.stateless.maxToolsListCacheEntries

maxToolsListCacheEntries caps cached stateless tools/list results in one gateway process.

  • Type: Positive integer
  • Default: 4096

The cache is process-local, TTL-bound, and evicts the least recently touched key when capacity is exceeded. Entries vary by principal, protocol, relevant headers, configuration revision, and policy revision, so this limit may need to be larger than the discovery cache in multi-tenant deployments.