import type { MemoryId } from '../../types/ids/index.js';
import type { MemoryIndex, MemoryIndexEntry, MemorySearchParams, MemorySearchResult } from '../../types/memory/index.js';
/** Exact normalized word membership; no substring, stemming or alias inference. */
export declare function matchesMemoryIdentifier(text: string, identifiers: ReadonlySet<string>): boolean;
/** Shared lexical ranking; a caller-owned index can omit body content. */
export declare function searchMemoryEntries(entries: readonly MemoryIndexEntry[], params: MemorySearchParams, contentOf?: (id: MemoryId) => string): MemorySearchResult;
export declare class InMemoryMemoryIndex implements MemoryIndex {
    private entries;
    search(params: MemorySearchParams): MemorySearchResult;
    getEntry(id: MemoryId): MemoryIndexEntry | undefined;
    allEntries(): readonly MemoryIndexEntry[];
    count(): number;
    rebuild(entries: MemoryIndexEntry[]): void;
    set(entry: MemoryIndexEntry): void;
    remove(id: MemoryId): boolean;
}
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