import type { SessionPlan } from "../../store/plan.js";
export interface TaskUpdateRequest {
    readonly state: string;
    readonly taskId: string;
}
export type TaskUpdateGateResult = {
    readonly ok: true;
} | {
    readonly ok: false;
    readonly reason: string;
};
export declare const parseTaskUpdateRequest: (args: Record<string, unknown>) => TaskUpdateRequest;
export declare const decideTaskUpdateDoneGate: (plan: SessionPlan | undefined, taskId: string, completionGate: (plan: SessionPlan, taskId: string) => TaskUpdateGateResult) => TaskUpdateGateResult;