/**
 * PostgreSQL Audit Backup Tools
 *
 * 3 tools for managing pre-mutation backup snapshots:
 * - pg_audit_list_backups: List available snapshots (read)
 * - pg_audit_restore_backup: Restore a snapshot (admin)
 * - pg_audit_diff_backup: Compare snapshot vs live schema (read)
 */
import type { PostgresAdapter } from "../../postgres-adapter.js";
import type { ToolDefinition } from "../../../../types/index.js";
import type { BackupManager } from "../../../../audit/backup-manager.js";
/**
 * Create pg_audit_list_backups tool — lists available pre-mutation snapshots.
 */
export declare function createAuditListBackupsTool(_adapter: PostgresAdapter, backupManager: BackupManager | null): ToolDefinition;
/**
 * Create pg_audit_restore_backup tool — restores DDL from a snapshot.
 */
export declare function createAuditRestoreBackupTool(adapter: PostgresAdapter, backupManager: BackupManager | null): ToolDefinition;
/**
 * Create pg_audit_diff_backup tool — compares snapshot DDL against live schema.
 */
export declare function createAuditDiffBackupTool(adapter: PostgresAdapter, backupManager: BackupManager | null): ToolDefinition;
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