import type { SessionEntry } from "@earendil-works/pi-coding-agent";
import type { FabricExtractiveConfig } from "../config.js";
export interface ExtractiveSource {
    entryId: string;
    role: "user" | "assistant";
    /** Complete text parts, never thinking, tool calls, tool results or summaries. */
    quotes: string[];
}
export interface ExtractiveCandidate {
    id: string;
    order: number;
    sources: ExtractiveSource[];
    hash: string;
}
export interface ExtractiveNode {
    id: string;
    first: string;
    last: string;
    /** Underlying candidates, not the children's display selections. */
    candidateRange: {
        first: number;
        last: number;
    };
    children: ExtractiveNode[];
}
export declare const digest: (value: unknown) => string;
export declare function extractSources(entries: readonly SessionEntry[]): ExtractiveSource[];
export declare function buildExtractiveIndex(sources: ExtractiveSource[]): {
    candidates: ExtractiveCandidate[];
    root: ExtractiveNode | undefined;
};
/** TF-IDF relevance + recency + role coverage, with MMR redundancy penalty. */
export declare function rankExtractiveCandidates(pool: ExtractiveCandidate[], query: string, salience?: ReadonlyMap<string, number>): ExtractiveCandidate[];
/** Bound whole bundles before NLP or inference; spread across chronology, newest first. */
export declare function boundExtractivePool(candidates: ExtractiveCandidate[], config: FabricExtractiveConfig): ExtractiveCandidate[];
export declare function selectExtractiveNode(node: ExtractiveNode, candidates: ExtractiveCandidate[], query: string, config: FabricExtractiveConfig, salience?: ReadonlyMap<string, number>): ExtractiveCandidate[];
/** JSON quoted strings preserve exact text while keeping source delimiters data. */
export declare function renderExtractiveView(input: {
    session: string;
    candidates: ExtractiveCandidate[];
    ranked: ExtractiveCandidate[];
    root?: ExtractiveNode | undefined;
    config: FabricExtractiveConfig;
    diagnostic: string;
}): string;
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