/**
 * [INPUT]: process.env, optional overrides
 * [OUTPUT]: NanomemConfig — memory dir, token budget, scoring weights, etc.
 * [POS]: Shared by engine and adapters; host products configure via this
 */
import type { MemoryScope } from "./types.js";
export interface NanomemConfig {
    memoryDir: string;
    tokenBudget: number;
    budget: {
        lessons: number;
        knowledge: number;
        episodes: number;
        preferences: number;
        work: number;
        facets: number;
    };
    halfLife: Record<string, number>;
    maxEntries: {
        knowledge: number;
        lessons: number;
        preferences: number;
        work: number;
        facets: number;
    };
    consolidationThreshold: number;
    /** Stanford-style retrieval scoring weights */
    scoreWeights: {
        recency: number;
        importance: number;
        relevance: number;
    };
    /** Utility-weighted eviction: access frequency vs base impact */
    evictionWeights: {
        accessFrequency: number;
        baseImpact: number;
    };
    /** Default scope for all operations */
    defaultScope?: MemoryScope;
    /** Locale for LLM prompts and injection templates */
    locale: "en" | "zh";
    /** Strength growth factor on each successful recall (spaced repetition) */
    strengthGrowthFactor: number;
}
export declare function getConfig(overrides?: Partial<NanomemConfig>): NanomemConfig;