MCP Router: schema.allowExternalRefs

schema.allowExternalRefs controls whether tool schemas may resolve $ref or $dynamicRef outside the schema document.

• Type: Boolean
• Default and required value: false

The current runtime has no approved external resolver policy, so setting this property to true rejects configuration. Local references beginning with # remain available. Any external reference found during schema preflight is rejected even when it is nested inside another schema keyword.