export interface SchemaSection {
    name: string;
    loadDepth: number;
    defaultChildren?: string[];
    /** Short convention describing what belongs in this section. Consumed by the
     *  checkpoint agent and shown as placeholder body in empty sections. ~100 chars. */
    description?: string;
    /** What the checkpoint agent may write here: readonly | pointer | append (default). */
    checkpointPolicy?: 'readonly' | 'pointer' | 'append';
}
export interface EntrySchema {
    sections: SchemaSection[];
    createLinkedO?: boolean;
}
export interface HmemConfig {
    /** Per-prefix entry schemas. Keys are prefix letters ("P", "E", …). Generic. */
    schemas?: Record<string, EntrySchema>;
    prefixes?: Record<string, string>;
    maxTitleChars?: number;
    maxNodeChars?: number;
}
export declare const DEFAULT_PREFIXES: Record<string, string>;
export declare const DEFAULT_CONFIG: HmemConfig;
/**
 * Load config from `<dir>/hmem.config.json`, deep-merging `schemas` over DEFAULT_CONFIG.
 * Missing file → defaults. User-supplied schema keys win; default keys fill the rest.
 * Malformed prefix keys (not 1–2 uppercase letters) are dropped.
 */
export declare function loadConfig(dir: string): HmemConfig;