Neo4j Memory Server

/** * MCP Error Codes - Standard error codes for MCP protocol * Based on JSON-RPC 2.0 error code ranges * * THE IMPLEMENTOR'S RULE: Zero-fallback architecture - fail fast with proper codes */ export const MCPErrorCodes = { // Standard JSON-RPC 2.0 errors PARSE_ERROR: -32700, INVALID_REQUEST: -32600, METHOD_NOT_FOUND: -32601, INVALID_PARAMS: -32602, INTERNAL_ERROR: -32603, // Custom validation errors (-29xxx range) VALIDATION_FAILED: -29001, INVALID_MEMORY_COUNT: -29002, INVALID_RELATION_COUNT: -29003, INVALID_LOCAL_ID: -29004, EMPTY_ARRAY: -29005, INVALID_ID_FORMAT: -29006, DUPLICATE_ID: -29007, INVALID_NAME: -29008, INVALID_TYPE: -29009, INVALID_STRENGTH: -29010, INVALID_DATE_FORMAT: -29011, INVALID_QUERY: -29012, INVALID_CONTEXT_LEVEL: -29013, INVALID_TRAVERSAL_OPTIONS: -29014, INVALID_DATABASE_NAME: -29015, INVALID_REQUEST_PARAMS: -29016, INVALID_SEARCH_QUERY: -29017, INVALID_OBSERVATION_CONTENT: -29018, INVALID_PARAMETER: -29019, INVALID_ENVIRONMENT_CONFIG: -29020, INVALID_EMBEDDING_INPUT: -29021, INVALID_MEMORY_ID_LENGTH: -29022, INVALID_SELF_REFERENCE: -29023, EMPTY_QUERY: -29024, INVALID_LIMIT: -29025, INVALID_THRESHOLD: -29026, // Resource errors (-30xxx range) MEMORY_NOT_FOUND: -30001, DATABASE_UNAVAILABLE: -30002, DATABASE_NOT_FOUND: -30003, OBSERVATION_NOT_FOUND: -30004, RELATION_NOT_FOUND: -30005, DATABASE_OPERATION_FAILED: -30006, CONSTRAINT_VIOLATION: -30007, INDEX_NOT_FOUND: -30008, RESOURCE_NOT_FOUND: -30009, DUPLICATE_RELATION: -30010, // Service errors (-31xxx range) SERVICE_UNAVAILABLE: -31001, SERVICE_MISCONFIGURED: -31002, REQUIRED_SERVICE_MISSING: -31003, EMBEDDING_SERVICE_ERROR: -31004, VECTOR_SEARCH_ERROR: -31005, GDS_PLUGIN_MISSING: -31006, SERVICE_ERROR: -31007, // Auth errors (-32xxx range) UNAUTHORIZED: -32001, INVALID_SESSION: -32002, SESSION_EXPIRED: -32003, // Operation errors (-33xxx range) OPERATION_TIMEOUT: -33001, OPERATION_CANCELLED: -33002, TRANSACTIONAL_FAILURE: -33003, ROLLBACK_FAILURE: -33004, } as const; export type MCPErrorCode = typeof MCPErrorCodes[keyof typeof MCPErrorCodes];