import type { VersionedTaskPlan } from "../../agent/task-plan.js";
import { PlanTask, SessionPlan } from "./sqlite-backend.js";
export declare function isBareTaskIdTitle(title: string): boolean;
export declare function stripBareTaskIdTasks(tasks: PlanTask[]): PlanTask[];
export declare function savePlan(plan: SessionPlan): Promise<void>;
export interface PlanMutationResult {
    ok: boolean;
    plan?: SessionPlan | undefined;
    reason?: "missing-plan" | "version-conflict" | "no-change" | "invalid" | "persist-failed" | "private-mode" | undefined;
    repairs?: string[] | undefined;
}
export declare function mutatePlan(sessionId: string, reducer: (draft: SessionPlan) => boolean | void, opts?: {
    expectedVersion?: number | undefined;
    retries?: number | undefined;
}): Promise<PlanMutationResult>;
export declare function loadPlan(sessionId: string): Promise<SessionPlan | undefined>;
export declare function toVersionedTaskPlan(plan: SessionPlan): VersionedTaskPlan;
export declare function validateSessionPlan(plan: SessionPlan): {
    ok: true;
} | {
    ok: false;
    reason: string;
};
export declare function activeForegroundTasks(plan: SessionPlan): PlanTask[];
export declare function enforcePlanInvariants(plan: SessionPlan): string[];