declare const LANGUAGES: readonly ["typescript-javascript", "python", "java", "kotlin", "csharp", "php", "c", "cpp", "rust", "go", "ruby", "apex", "sfmeta", "unsupported", "mixed", "unknown"];
type Language = typeof LANGUAGES[number];
export declare const FALLBACK_REASONS: readonly ["no_match", "ambiguous", "unresolved_import", "unsupported_extension", "other"];
type Reason = typeof FALLBACK_REASONS[number];
export declare const codeRequestTelemetryFile: (wikiRoot: string) => string;
export declare function codeRequestLanguage(paths: readonly string[]): Language;
/** Successful public responses only, including empty results. No query text,
 * source path, symbol, body or stable content hash is persisted. */
export declare function recordCodeRequest(wikiRoot: string, paths: readonly string[], matched: boolean): Promise<string>;
export declare function recordCodeRequestFallback(wikiRoot: string, requestId: string | undefined, reason: string): Promise<{
    linked: boolean;
    duplicate: boolean;
}>;
export declare function codeRequestSummary(wikiRoot: string): Promise<{
    unlinkedFallbacks: number;
    rateDefinition: string;
    byLanguage: {
        [k: string]: {
            fallbackRate: number | null;
            served: number;
            matched: number;
            fallbacks: number;
            reasons: Record<Reason, number>;
        };
    };
    recovery?: {
        file: string;
        at: string;
    } | undefined;
    version: number;
    startedAt: string;
    scope: string;
    correlationWindow: number;
}>;
export {};
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