import type { SecurityLevel, ToolCapability } from './schema.js';
/** 漂移报告：对比基线与当前矩阵的五维差异。 */
export interface DriftReport {
    added: string[];
    removed: string[];
    contractChanges: string[];
    securityLevelDowngrades: {
        name: string;
        from: SecurityLevel;
        to: SecurityLevel;
    }[];
    annotationChanges: {
        name: string;
        field: 'readOnlyHint' | 'destructiveHint' | 'idempotentHint';
        from: boolean;
        to: boolean;
    }[];
    hasDrift: boolean;
}
/**
 * 纯函数：对比两份能力矩阵，产出漂移报告。
 * 查 5 维：added / removed / contractChanges / securityLevelDowngrades / annotationChanges。
 * 不查 gdScriptImpl（editor 实现路径属元数据，非契约字段，不参与 drift）。
 */
export declare function diffMatrices(prev: ToolCapability[], curr: ToolCapability[]): DriftReport;