/** Configurable web search provider for DeepSeek Harness. */
import type { Context, Volatile } from '@deepseek-ai/cordis';
import z from '@deepseek-ai/schemastery';
import type { BraveConfig, CredentialReader, GeminiConfig, ProviderKind, SearchBackend, SearxngConfig, TavilyConfig, WikipediaConfig } from './types.ts';
export { BraveBackend } from './brave.ts';
export { GeminiBackend } from './gemini.ts';
export { SearxngBackend, discoverSearxngEngines, endpointFor } from './searxng.ts';
export { TavilyBackend } from './tavily.ts';
export type { BraveConfig, CredentialReader, GeminiConfig, ProviderKind, SearchBackend, SearxngConfig, TavilyConfig, WikipediaConfig } from './types.ts';
export { WikipediaBackend } from './wikipedia.ts';
/** Stable provider id selected by the host `web` service. */
export declare const PROVIDER_ID = "lemoncat7-search";
/** Default key environment variable for Brave Search. */
export declare const BRAVE_API_KEY_ENV = "BRAVE_SEARCH_API_KEY";
/** Default key environment variable for Tavily. */
export declare const TAVILY_API_KEY_ENV = "TAVILY_API_KEY";
/** Default key environment variable for the Gemini Developer API. */
export declare const GEMINI_API_KEY_ENV = "GEMINI_API_KEY";
/** Cost-conscious Gemini model used for Google Search grounding. */
export declare const DEFAULT_GEMINI_MODEL = "gemini-3.5-flash-lite";
/** Default SearXNG instance configured by the shipped bundle. */
export declare const SEARXNG_BASE_URL_ENV = "SEARXNG_BASE_URL";
/** Settings namespace consumed by the browser card and Host provider. */
export declare const WEB_SEARCH_MULTI_SETTINGS_NAMESPACE = "lemoncat7-web-search";
/** Cordis plugin name used in loader diagnostics. */
export declare const name = "lemoncat7-web-search";
/** Host service required by this provider. */
export declare const inject: string[];
/** Plugin configuration. Exactly one backend is active for each plugin row. */
export interface Config {
    readonly provider?: ProviderKind;
    readonly requestTimeoutMs?: number;
    readonly searxng?: SearxngConfig;
    readonly brave?: BraveConfig;
    readonly tavily?: TavilyConfig;
    readonly gemini?: GeminiConfig;
    readonly wikipedia?: WikipediaConfig;
}
export declare const Config: z<NoInfer<Schemastery.ObjectS<NoInfer<{
    provider: z<"searxng" | "brave" | "tavily" | "gemini" | "wikipedia", "searxng" | "brave" | "tavily" | "gemini" | "wikipedia", "defined">;
    requestTimeoutMs: z<number, number, "defined">;
    searxng: z<SearxngConfig>;
    brave: z<BraveConfig>;
    tavily: z<TavilyConfig>;
    gemini: z<GeminiConfig>;
    wikipedia: z<WikipediaConfig>;
}>>>, NoInfer<Schemastery.ObjectT<NoInfer<{
    provider: z<"searxng" | "brave" | "tavily" | "gemini" | "wikipedia", "searxng" | "brave" | "tavily" | "gemini" | "wikipedia", "defined">;
    requestTimeoutMs: z<number, number, "defined">;
    searxng: z<SearxngConfig>;
    brave: z<BraveConfig>;
    tavily: z<TavilyConfig>;
    gemini: z<GeminiConfig>;
    wikipedia: z<WikipediaConfig>;
}>>>, "volatile">;
/** Environment lookup used to keep credentials out of Cordis config. */
export type EnvironmentReader = (name: string) => string | undefined;
/** Resolve and validate the selected external backend. */
export declare function createBackend(config: Config, environment: EnvironmentReader, credentials: CredentialReader): SearchBackend;
/** Register the selected backend under the stable provider id. */
export declare function apply(context: Context, config: Volatile<Config>): void;