/**
 * [WHO]: GoalStore class - atomic JSON-file persistence layer for per-thread goals; CRUD primitives (get/replace/insert/update/delete) and account_usage; no concurrency control beyond filesystem atomic rename
 * [FROM]: Depends on node:fs, node:path, node:crypto, ./goal-types
 * [TO]: Consumed by ./goal-controller and any code that needs to mutate or observe persisted goal state
 * [HERE]: extensions/builtin/goal/goal-store.ts - durable per-thread storage under <agentDir>/goals/<threadId>.json
 */
import { type GoalAccountingMode, type GoalAccountingOutcome, type ThreadGoal, type ThreadGoalStatus } from "./goal-types.js";
export declare class GoalStore {
    private readonly agentDir;
    private readonly threadId;
    readonly filePath: string;
    constructor(agentDir: string, threadId: string);
    get_goal(): ThreadGoal | null;
    replace_goal(objective: string, status: ThreadGoalStatus, tokenBudget: number | null): ThreadGoal;
    insert_goal(objective: string, status: ThreadGoalStatus, tokenBudget: number | null): ThreadGoal | null;
    update_goal(update: {
        objective?: string;
        status?: ThreadGoalStatus;
        tokenBudget?: number | null | undefined;
        expectedGoalId?: string | null;
    }): ThreadGoal | null;
    delete_goal(): boolean;
    account_usage(timeDeltaSeconds: number, tokenDelta: number, mode: GoalAccountingMode, expectedGoalId?: string): GoalAccountingOutcome;
    set_status(status: ThreadGoalStatus, expectedGoalId?: string): ThreadGoal | null;
    usage_limit_active(): ThreadGoal | null;
    stop_active_as_blocked(): ThreadGoal | null;
}
export declare function createGoalStore(agentDir: string, threadId: string): GoalStore;