import type { JevRequest, JevResponse } from "../jev/types.js";
import { type ResolvedFabricAction } from "./action-registry.js";
export declare const DEFAULT_SEMANTIC_CANDIDATE_LIMIT = 127;
export declare const DEFAULT_SEMANTIC_MIN_PROBABILITY = 0.2;
export type SemanticSearchErrorCode = "disabled" | "empty_query" | "invalid_search_mode" | "credential_missing" | "authentication_failed" | "invalid_response" | "timeout" | "aborted" | "rate_limited" | "service_unavailable";
export type SemanticSearchBackend = {
    requested: "semantic";
    used: "semantic";
    degraded: false;
    model: string;
    usage: {
        inputTokens: number;
        outputTokens: number;
    };
    abstained: boolean;
} | {
    requested: "semantic";
    used: "lexical";
    degraded: true;
    reason: "timeout" | "rate_limited" | "service_unavailable";
};
export type SemanticSearchResult = {
    ok: true;
    actions: ResolvedFabricAction[];
    backend: SemanticSearchBackend;
} | {
    ok: false;
    error: {
        code: SemanticSearchErrorCode;
        message: string;
    };
};
export interface SemanticSearchEvaluator {
    (request: JevRequest, signal: AbortSignal): Promise<JevResponse>;
}
interface Candidate {
    id: string;
    action: ResolvedFabricAction;
    description: string;
    server: string;
}
export declare const mcpServerOf: (action: ResolvedFabricAction) => string | undefined;
export declare const isMcpServerBlocked: (server: string | undefined, blockedServers: readonly string[]) => boolean;
export declare const selectSemanticCandidates: (query: string, actions: ResolvedFabricAction[], blockedServers: readonly string[], limit: number) => Candidate[];
export declare const classifyJevSearchFailure: (error: unknown) => SemanticSearchResult;
export declare const semanticSearchActions: (options: {
    query: string;
    actions: ResolvedFabricAction[];
    blockedServers?: readonly string[];
    candidateLimit?: number;
    minProbability?: number;
    signal: AbortSignal;
    evaluate: SemanticSearchEvaluator;
}) => Promise<SemanticSearchResult>;
export {};
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