/**
 * Resolve a workspace stuck at `preserved_dirty` (ADR 0042).
 *
 * When a run ends with uncommitted work, the provider preserves the worktree
 * rather than destroying the only copy of that work. That decision is correct,
 * and until this existed it was also permanent: cleanup re-attempted, found the
 * tree still dirty, preserved again, and incremented a counter. The only exit
 * was to leave Harnery and remove the directory by hand, after which Harnery's
 * records described a workspace that no longer existed.
 *
 * The shape of the fix is deliberate. Neither mode deletes anything directly.
 * Each one makes the working tree *clean* by an explicit, named act, and then
 * hands off to the ordinary cleanup path, which releases a clean workspace as it
 * always has. So reclaim adds no second removal path that could diverge from the
 * audited one, and a force-delete of live work exists nowhere in the codebase.
 */
export type ReclaimMode = "salvage" | "discard";
export type ReclaimPreparation = {
    action: "salvaged";
    branch: string;
    commit: string;
    detail: string;
} | {
    action: "discarded";
    detail: string;
} | {
    action: "already_clean";
    detail: string;
} | {
    action: "already_gone";
    detail: string;
};
export interface PrepareReclaimInput {
    worktreePath: string;
    mode: ReclaimMode;
    runId: string;
}
/**
 * Bring the worktree to a clean state so ordinary cleanup can release it.
 *
 * Returns `already_gone` rather than throwing when the directory has been
 * removed out from under us. A workspace whose worktree no longer exists has
 * effectively been reclaimed; treating that as an error is what produced an
 * attempt counter that only ever went up.
 */
export declare function prepareReclaim(input: PrepareReclaimInput): ReclaimPreparation;
/** Named for the run rather than the workspace, because the run id is what an
 * operator has in hand when they come looking for the work later. */
export declare function salvageBranch(runId: string): string;
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