/**
 * The decision ledger AT REST (DES-decision-capture §4.2.1, DC-S4a).
 *
 * One append-only JSONL file per project at `<state home>/decisions/<projectId|_unscoped>.jsonl`:
 * the directory 0700, each file 0600 — the posture of the chat transcripts (`chat-transcripts.ts`).
 * The words live HERE and nowhere else crew writes (never the bus, logs or `/diagnostics`).
 * Registered in `tests/fixtures/state-home-subtrees.json` as `decisions` (crew half) — the core half,
 * the worker Read fence, shipped with wicked-core-ts 0.7.35 — so a worker cannot read the operator's
 * words through the file system.
 *
 * Reads fold `record` + `outcome` lines into a {@link DecisionView}; the in-memory index is built
 * once at first use and kept current by `append`.
 */
import type { DecisionOutcome, DecisionRecord, DecisionView } from './types.js';
/** The state-home entry (`<state home>/decisions/`) — the name the fixture registers. */
export declare const DECISIONS_DIRNAME = "decisions";
export declare function defaultDecisionsDir(): string;
export interface DecisionFilter {
    project?: string;
    chat?: string;
    run?: string;
    state?: DecisionView['state'];
    since?: number;
}
export declare class DecisionLedger {
    private readonly dir;
    private loaded;
    private readonly byId;
    /** decision key → ids, in record order (recurrence + widen). */
    private readonly byKey;
    /** estate proposal id → decision id (B12: answering either one resolves both). */
    private readonly byProposal;
    constructor(dir?: string);
    private fileFor;
    private load;
    private index;
    private write;
    appendRecord(record: DecisionRecord): void;
    appendOutcome(outcome: DecisionOutcome): void;
    record(id: string): DecisionRecord | null;
    outcomes(id: string): DecisionOutcome[];
    /** The decision a review-queue proposal was filed for, or `null` (an ordinary proposal). */
    decisionForProposal(proposalId: string): string | null;
    /** Prior records with this key: how often, since when, and in which projects. */
    recurrence(key: string): {
        count: number;
        first_at: number;
        projects: string[];
    } | null;
    /** Remembered, not undone decisions with this key, newest outcome last. */
    rememberedWithKey(key: string): Array<{
        record: DecisionRecord;
        rule_id: string;
    }>;
    /** Records whose route asks for an action but carry no outcome yet (the restart re-drive). */
    pending(): DecisionRecord[];
    view(id: string): DecisionView | null;
    list(filter?: DecisionFilter): DecisionView[];
}
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