import type { IEmbedder, ISkillPluginHost, ISkillSource, ISkillsRagBackendProvider, ISkillsStoreProvider } from '@mcp-abap-adt/llm-agent';
/** RECALL-ONLY construction: serves an already-materialised catalog through a READ-ONLY
 *  backend provider (least privilege — no source, no store, no write/reconcile API). The
 *  served collections are materialised out-of-band by a SEPARATE ingest job. */
export interface RecallHostDeps {
    backendProvider: ISkillsRagBackendProvider;
    /** Serving embedder — text query embed + lazy dimension probe. */
    embedder: IEmbedder;
    embeddingSpaceId: string;
    retrievalSchemaVersion: number;
    dimension?: number;
    /** The collections this host serves; each MUST exist in the backend's catalog.
     *  OMIT to serve ALL (non-tombstoned) collections present in the catalog. */
    serveCollections?: readonly string[];
    /** Threaded into makeCompatibleSkillsRag in rag() (Qdrant time-grace). */
    recallTimeoutMs?: number;
}
export type SkillPluginHostDeps = IngestHostDeps | RecallHostDeps;
export interface IngestHostDeps {
    sources: ReadonlyArray<{
        id: string;
        source: ISkillSource;
    }>;
    storeProvider: ISkillsStoreProvider;
    /** Serving embedder (also used to vectorise upserts via the provider). */
    embedder: IEmbedder;
    embeddingSpaceId: string;
    retrievalSchemaVersion: number;
    dimension?: number;
    strict?: boolean;
    /** Default 3. */
    catalogCasMaxAttempts?: number;
    /** Default true; false = an ingest-only job (skips the reload set-guard). */
    servingMode?: boolean;
    /** Threaded into makeCompatibleSkillsRag in rag() (Qdrant time-grace). */
    recallTimeoutMs?: number;
    /** Injected clock for deterministic tests (default Date.now). */
    now?: () => number;
}
export declare function makeSkillPluginHost(deps: SkillPluginHostDeps): ISkillPluginHost;
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