import type { KnowledgeEntry, KnowledgeTier } from './types.js';
export interface KnowledgeRegistry {
    get(id: string): KnowledgeEntry | undefined;
    list(): KnowledgeEntry[];
    byTier(tier: KnowledgeTier): KnowledgeEntry[];
}
export declare class MemoryKnowledgeRegistry implements KnowledgeRegistry {
    #private;
    constructor(entries: readonly KnowledgeEntry[]);
    get(id: string): KnowledgeEntry | undefined;
    list(): KnowledgeEntry[];
    byTier(tier: KnowledgeTier): KnowledgeEntry[];
}