import type { ChatMessage } from "../../types.js";
import type { SessionPlan } from "../../store/plan.js";
export interface CompactionCandidateInput {
    readonly messages: readonly ChatMessage[];
    readonly agentInstructionsBlock: string | undefined;
    readonly activeSkillsBlock: string | undefined;
    readonly livePlan: SessionPlan | undefined;
    readonly planApproved: boolean;
}
export declare const prepareCompactionCandidateMessages: (input: CompactionCandidateInput) => ChatMessage[];