import type { LLMMessage } from '../llm/llm-provider.js';
import type { Message } from '../session/session-jsonl.js';
export type GoalStatus = 'active' | 'paused' | 'completed' | 'blocked';
export interface GoalState {
    sessionKey: string;
    objective: string;
    status: GoalStatus;
    statusReason?: string;
    createdAt: number;
    updatedAt: number;
    pausedAt?: number;
    completedAt?: number;
    blockedAt?: number;
}
export interface GoalCheckpointSplit<T extends Message | LLMMessage = Message | LLMMessage> {
    goal?: GoalState;
    messages: T[];
}
export declare function createGoalState(params: {
    sessionKey: string;
    objective: string;
    now?: number;
}): GoalState;
export declare function updateGoalState(goal: GoalState, params: {
    status: GoalStatus;
    statusReason?: string;
    now?: number;
}): GoalState;
export declare function createGoalCheckpointMessage(goal: GoalState): LLMMessage;
export declare function isGoalCheckpointMessage(message: Message | LLMMessage): boolean;
export declare function splitGoalCheckpointMessages<T extends Message | LLMMessage>(messages: T[]): GoalCheckpointSplit<T>;
export declare function stripGoalCheckpointsFromLlmMessages<T extends Message | LLMMessage>(messages: T[]): T[];
export declare function buildGoalModeContext(goal: GoalState): string;
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