/**
 * aiws change tasks legacy-import — G-026 M6 explicit legacy migration entry.
 *
 * Migrates an ACTIVE legacy change (tasks/tasks.jsonl and/or task-level
 * evidence/done.signal, no attempt layout) into the attempt layout via the
 * M1 read-only compatibility layer (legacy-import). Generates synthetic attempt
 * metadata with producer=legacy-import, trustLevel=compatibility,
 * needsVerification=true; explicit legacy status "completed" maps to passed,
 * everything else stays unknown. Never writes legacy files; never touches
 * archive changes (read-only).
 */
export interface LegacyImportCommandResult {
    changeId: string;
    kind: "new" | "legacy" | "mixed" | "absent";
    tasksImported: number;
    attempted: boolean;
    reason?: string;
    skippedLegacyAttempts: number;
}
export declare function runChangeTasksLegacyImportCommand(opts: {
    changeId: string;
    gitRoot: string;
}): Promise<LegacyImportCommandResult>;