/**
 * Reference in-memory SkillSource for tests and small deployments.
 *
 * @module @nhtio/adk/batteries/skills/in_memory
 */
import type { SkillDescriptor } from "../types";
import type { DiscoveredSkill, SkillRef, SkillSource } from "../contracts";
/** A mutable, deterministic SkillSource backed by SKILL.md strings. */
export declare class InMemorySkillSource implements SkillSource {
    #private;
    /** Source provenance stamped onto every discovered reference. */
    readonly id: string;
    constructor(id: string, entries: ReadonlyArray<{
        readonly id: string;
        readonly version: string;
        readonly manifest: string;
        readonly descriptor: SkillDescriptor;
        readonly files?: Readonly<Record<string, string | Uint8Array>>;
    }>);
    /** Yields the precomputed routing metadata without loading descriptors. */
    discover(): AsyncIterable<DiscoveredSkill>;
    /** Returns the live descriptor for a discovered id. */
    descriptor(ref: SkillRef): Promise<SkillDescriptor>;
    read(ref: SkillRef, path?: string): Promise<ReadableStream<Uint8Array>>;
    /** Reports byte size and current entry version for the body or a bundled file. */
    stat(ref: SkillRef, path?: string): Promise<{
        size: number;
        version: string;
    }>;
    list(ref: SkillRef): Promise<readonly string[]>;
}