/**
 * The app's memory: the caps that keep it small, and the block every editor
 * reads before the document itself.
 *
 * The type is core's ({@link AppMemory}); the POLICY is here, because a cap is a
 * write-site decision and a stored document must still parse when the cap
 * changes. One module so the runtime's write door and the two briefs that read
 * it cannot disagree about what "the memory" is.
 */
import type { AppMemory } from "../../contract/index.js";
/**
 * How many asks a row keeps. Twenty is the point past which an ask is history
 * rather than context — the oldest is dropped, so the memory stays a working
 * set instead of growing without bound on a long-lived app.
 */
export declare const APP_MEMORY_MAX_ASKS = 20;
/**
 * The decisions budget. ~5 lines fits well inside this; the cap exists so a
 * model that ignores "keep it short" cannot put a transcript in every future
 * prompt.
 */
export declare const APP_MEMORY_DECISIONS_MAX_BYTES = 1024;
/**
 * The memory after one run: the ask APPENDED, the decisions REPLACED.
 *
 * The asymmetry is the whole design. An ask is what the person actually said and
 * is true forever; a decisions block describes the app as it stands, so keeping
 * the previous one beside it would present a superseded constraint as a current
 * one. An empty or whitespace-only `decisions` is "nothing to say", not "forget
 * what you knew".
 */
export declare const rememberedMemory: (memory: AppMemory | undefined, input: {
    ask?: string;
    decisions?: string;
}) => AppMemory;
/**
 * The memory as a brief opens with it, or `undefined` when there is nothing to
 * say.
 *
 * It leads the prompt rather than trailing the document, because it is what the
 * document CANNOT say: the reader is about to see a filtered list and needs to
 * know the filter was the ask before deciding it is a bug.
 */
export declare const appMemoryBrief: (memory: AppMemory | undefined) => string | undefined;
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