export type ActionIntent = 'MUTATE' | 'NOOP' | 'UNKNOWN';
export interface TextPatch {
    oldText: string;
    newText: string;
    occurrence?: number;
}
export interface FileAction {
    path: string;
    operation: 'CREATE' | 'MODIFY' | 'DELETE' | 'READ' | 'PATCH';
    intent: ActionIntent;
    content?: string;
    patches?: TextPatch[];
    contentHash?: string;
    description?: string;
}
export type VerificationStatus = 'verified' | 'noop' | 'failed' | 'drift';
export interface ActionResult {
    action: FileAction;
    status: VerificationStatus;
    detail: string;
    before?: FileSnapshotSummary;
    after?: FileSnapshotSummary;
}
export interface SWDRunResult {
    success: boolean;
    results: ActionResult[];
    rolledBack: boolean;
    rollbackErrors: string[];
    errors: string[];
}
export interface SWDOptions {
    dryRun?: boolean;
    strict?: boolean;
    enableRollback?: boolean;
    maxWritableActionContentBytes?: number;
    maxPatchBytes?: number;
    onAction?: (action: FileAction) => void;
    onVerify?: (result: ActionResult) => void;
    onRollback?: (path: string, success: boolean, error?: string) => void;
}
export interface FileSnapshot {
    path: string;
    exists: boolean;
    size: number;
    mtime: number;
    hash: string;
    content: Buffer | null;
}
export interface FileSnapshotSummary {
    path: string;
    exists: boolean;
    size: number;
    mtime: number;
    hash: string;
}
export declare const MAX_WRITABLE_ACTION_CONTENT_BYTES = 200000;
export declare const MAX_PATCH_BYTES = 80000;
/**
 * Authoritative filesystem execution kernel.
 * Lifecycle: Plan → Snapshot_Before → Execute → Snapshot_After → Verify → Commit/Rollback
 */
export declare class SWDEngine {
    private options;
    constructor(options?: SWDOptions);
    run(actions: FileAction[]): Promise<SWDRunResult>;
    private executeAction;
    private verifyInternal;
    private performRollback;
}
export declare function resolveSafePath(unsafePath: string): string;
export declare function snapshotFile(safeAbsPath: string): FileSnapshot;
export declare function parseActions(output: string): FileAction[];
export declare function summarizeActions(output: string, userInput: string): string;
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