import type { ToolDefinition } from "@/types";
/**
 * Builds the memory_node_write tool that creates or updates a graph node.
 * When nodeId is omitted a cuid2 is generated. When provided the existing node is updated.
 * Root node (__root__) cannot be written — it is virtual and read-only.
 * Title, description, and parents are required and normalized before writing.
 * Expects: toolContext.memory is available and ctx.userId identifies the user.
 */
export declare function memoryNodeWriteToolBuild(): ToolDefinition;
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