/** Rehydrate a node's on-read dedup set from disk. Returns an empty set when the
 *  file is absent, unreadable, or malformed (a fresh transcript, or a node that
 *  has not yet surfaced any on-read doc). */
export declare function loadInjectedDocs(nodeId: string): Set<string>;
/** Persist a node's on-read dedup set. Called after each read that surfaced a
 *  new doc, so the grown set survives a later dormancy. */
export declare function saveInjectedDocs(nodeId: string, seen: Set<string>): void;
/** Drop a node's persisted dedup set. Called by the launch paths that start a
 *  FRESH transcript, so the new conversation surfaces docs from scratch. */
export declare function clearInjectedDocs(nodeId: string): void;