/**
 * Add-to-pack operation — applies a precomputed manifest-add delta to a pack manifest.
 *
 * Validates manifest precondition (stale check) before writing.
 *
 * @experimental This API is unstable and may change without notice.
 */
import * as FileSystem from "effect/FileSystem";
import * as Path from "effect/Path";
import type { Handle } from "../../extensions/index.js";
import type { OperationHandler } from "../../plan/apply-plan.js";
import type { Operation } from "../../plan/plan.js";
import { WorkspaceMutations } from "../../workspace/service-interface.js";
/**
 * Args for the add-to-pack operation.
 */
export interface AddToPackOperationArgs {
    /** Pack name (without owner). */
    readonly packName: string;
    /** Pack owner (e.g., "@myorg"). */
    readonly packOwner: Handle;
    /** Precomputed manifest delta: FQN -> version range entries to add. */
    readonly additions: Readonly<Record<string, string>>;
    /** Manifest content hash at plan time for stale-check. */
    readonly manifestHash: string;
}
/**
 * Add extensions to a pack manifest.
 *
 * @experimental This API is unstable and may change without notice.
 */
export type AddToPackOperation = Operation<"add-to-pack", AddToPackOperationArgs>;
/**
 * Add-to-pack operation handler.
 *
 * 1. Short-circuit if additions map is empty (no-op)
 * 2. Read current manifest and compute hash
 * 3. Compare hash with args.manifestHash (stale check)
 * 4. Apply additions to manifest
 * 5. Write updated manifest
 */
export declare const addToPack: OperationHandler<AddToPackOperation, FileSystem.FileSystem | Path.Path | WorkspaceMutations>;
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