ConstReadonlyAPI_AUTHENTICATION_ERROR: "API_AUTHENTICATION_ERROR"Authentication error
ReadonlyAPI_CLIENT_NOT_CONFIGURED: "API_CLIENT_NOT_CONFIGURED"Client not configured
ReadonlyAPI_ERROR: "API_ERROR"API communication error
ReadonlyCONFIGURATION_ERROR: "CONFIGURATION_ERROR"Configuration is invalid or missing
ReadonlyCONNECTION_ERROR: "CONNECTION_ERROR"Network connection failed
ReadonlyFORBIDDEN: "FORBIDDEN"Access denied
ReadonlyINTERNAL_ERROR: "INTERNAL_ERROR"Internal server error
ReadonlyINVALID_REQUEST: "INVALID_REQUEST"Invalid request format
ReadonlyNOT_FOUND: "NOT_FOUND"Requested resource not found
ReadonlyOPERATION_CANCELLED: "OPERATION_CANCELLED"Operation was cancelled
ReadonlyOPERATION_ERROR: "OPERATION_ERROR"Operation failed
ReadonlyREGISTRY_ERROR: "REGISTRY_ERROR"Registry error (tool/resource/prompt)
ReadonlySERVICE_UNAVAILABLE: "SERVICE_UNAVAILABLE"Service unavailable
ReadonlyTIMEOUT_ERROR: "TIMEOUT_ERROR"Request timeout
ReadonlyUNAUTHORIZED: "UNAUTHORIZED"Authentication failed
ReadonlyVALIDATION_ERROR: "VALIDATION_ERROR"Input validation failed
Application-specific error codes.
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