import type { SlotName } from "../slots/types.js";
export interface EpisodeSummary {
    id: string;
    slot: SlotName;
    task: string;
    result: string;
    tokens: number;
    duration: number;
    filesModified?: string[];
    status: "success" | "failure" | "partial";
}
export declare function createEpisodeSummary(partial: Omit<EpisodeSummary, "id">): EpisodeSummary;
/**
 * Compress an episode into a structured summary suitable for context injection.
 * Preserves: slot, status, task summary, files modified, and key outcome.
 * This replaces naive 200-char truncation with meaningful compression.
 */
export declare function compressEpisode(episode: EpisodeSummary): string;
/**
 * Format episodes as composable input context for thread-to-thread handoffs.
 * This is the mechanism the blog describes: "episodes can be direct inputs
 * to other threads", enabling thread composition where one thread's
 * conclusions become another thread's starting context.
 */
export declare function formatEpisodeInputs(episodes: EpisodeSummary[]): string;
/**
 * Extract keywords from episode content for RLM retrieval.
 */
export declare function extractEpisodeKeywords(episode: EpisodeSummary): Set<string>;
/**
 * Score relevance between a set of query keywords and an episode.
 * Uses keyword overlap (Jaccard-like scoring).
 */
export declare function episodeRelevance(queryKeywords: Set<string>, episode: EpisodeSummary): number;
/**
 * Extract keywords from text for RLM-style retrieval.
 * Filters stop words, keeps words >= 3 chars.
 */
export declare function extractKeywords(text: string): Set<string>;
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