/**
 * compaction-todo-preserver hook
 *
 * Snapshots todos before compaction, restores them if wiped by compaction.
 * Defense-in-depth against OpenCode's context compaction clearing the todo list.
 */
import type { PluginContext } from "../plugin/types";
export type TodoSnapshot = {
    content: string;
    status: string;
    priority: string;
};
export declare function createCompactionTodoPreserver(client: PluginContext["client"]): {
    capture: (sessionID: string) => Promise<void>;
    restore: (sessionID: string) => Promise<void>;
    clearSession: (sessionID: string) => void;
    getSnapshot: (sessionID: string) => TodoSnapshot[] | undefined;
};