/**
 * MCP data-governance tools (v3.x)
 *
 * 5 tools (v3.0 design):
 *  - compare_profile_schemas: SchemaDiff between two profiles
 *  - export_backup: BackupWriter.dump (SQL dump + schema-only)
 *  - audit_log: AuditLog.query (actor / severity / profile)
 *  - get_pii_config: read pii.config.json
 *  - set_pii_config: runtime PII rule update
 *
 * v3.2: handlers wired into ToolRegistry under 'data-governance' lazy group.
 */
import type { QueryAnalyzer } from '../../core/query-analyzer.js';
import type { ProfileManager } from '../../core/profile-manager.js';
export declare function buildCompareProfileSchemasHandler(pm: ProfileManager): (args: {
    nameA: string;
    nameB: string;
    maxTablesPerProfile?: number;
}) => Promise<import("../../core/schema-diff.js").SchemaDiffResult>;
export declare function buildExportBackupHandler(pm: ProfileManager): (args: {
    profileName: string;
    schemaOnly?: boolean;
    tables?: string[];
    outputPath?: string;
}) => Promise<import("../../core/backup-writer.js").BackupResult | {
    writtenTo: string;
    content: undefined;
    bytes: number;
    tables: string[];
    kind: "full" | "schema-only" | "unsupported";
    warnings?: string[];
}>;
export declare function buildAuditLogHandler(qa: QueryAnalyzer): (args: {
    actor?: string;
    severity?: "read" | "write" | "ddl";
    profileName?: string | null;
    since?: string;
    until?: string;
    limit?: number;
}) => Promise<import("../../core/query-analyzer-types.js").QueryHistoryEntry[]>;
export declare function buildGetPiiConfigHandler(): () => Promise<import("../../core/pii-masker.js").PiiConfig>;
export declare function buildSetPiiConfigHandler(): (args: {
    profileName: string;
    rules: {
        table: string;
        column: string;
        strategy: "mask" | "mask_last4" | "hash" | "redact" | "passthrough";
    }[];
}) => Promise<{
    success: boolean;
    profileName: string;
    ruleCount: number;
}>;
export declare const DATA_GOVERNANCE_TOOL_DESCRIPTIONS: {
    compare_profile_schemas: string;
    export_backup: string;
    audit_log: string;
    get_pii_config: string;
    set_pii_config: string;
};
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