/**
 * Content hashing for installed extension packages.
 *
 * @experimental This API is unstable and may change without notice.
 */
import * as Effect from "effect/Effect";
import * as FileSystem from "effect/FileSystem";
import * as Path from "effect/Path";
import { type AppError } from "../app-error/index.js";
import type { SourceHash } from "./rendered-files.js";
/**
 * Compute an advisory SHA-256 change marker over package content recursively.
 *
 * File order is normalized by sorting on relative path, and each entry
 * contributes its path and bytes separated by NUL so that a rename cannot
 * collide with a content change.
 *
 * The result is a change-detection marker for created/updated/unchanged
 * reporting, never a tamper seal — installed content is workspace-owned and
 * may be rewritten by content-preserving tools after install.
 *
 * @experimental This API is unstable and may change without notice.
 */
export declare const computePackageContentHash: (packageDir: string) => Effect.Effect<SourceHash, AppError, FileSystem.FileSystem | Path.Path>;
//# sourceMappingURL=package-hash.d.ts.map