/**
 * Workspace Registry
 * Maintains a persistent log of workspaces targeted by the MCP server.
 * Uses proper-lockfile to prevent read-modify-write data races
 * between parallel agents on the same host.
 *
 * Provides:
 * - addWorkspace: Appends a workspace directory to the tracking log.
 * - getWorkspaces: Reads and deduplicates the registry, returning a chronologically ordered array.
 * - rewriteRegistry: Completely rewrites the JSON registry, removing defunct entries.
 * - WorkspaceRecord: Interface for a single workspace registry record.
 */
/**
 * Represents a single logged workspace in the registry.
 */
export interface WorkspaceRecord {
    dir: string;
    timestamp: number;
}
/**
 * Appends a workspace directory to the tracking log.
 * De-duplicates adjacent identical calls during rapid sequential operations.
 */
export declare function addWorkspace(dir: string): Promise<void>;
/**
 * Reads and deduplicates the registry, returning a chronologically ordered array
 * of unique absolute workspace paths (oldest to most recent).
 */
export declare function getWorkspaces(): Promise<string[]>;
/**
 * Completely rewrites the JSON registry, removing defunct entries.
 * Given an array of ordered directory paths, it drops the current
 * transaction log and sequences them back in order.
 */
export declare function rewriteRegistry(directories: string[]): Promise<void>;
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