import type { WebSearchRequest, WebSearchResult } from '@deepseek-ai/dsh-web';
/** An already selected, operation-owned search entry; availability remains its owner's responsibility. */
export interface SearchToolProvider {
    readonly id: string;
    search(request: WebSearchRequest, signal?: AbortSignal): Promise<WebSearchResult>;
}
/** Captured policy for one primary attempt and at most one distinct final fallback. */
export interface SearchToolRoutingDependencies {
    readonly primary?: SearchToolProvider | undefined;
    readonly fallback?: SearchToolProvider | undefined;
    /** False, or a thrown error, revokes this operation without permitting fallback. */
    readonly canContinue: () => boolean;
    /** Legacy failure-spending control; does not prevent fallback when no primary was resolved. */
    readonly allowFailureFallback?: boolean;
}
/**
 * Execute a captured primary and optional final fallback without registry or credential access.
 * The caller resolves Auto, handles disabled policy, proves registrations and supplies lifetime guards.
 * Generic providers must honor the signal; this helper cannot inspect their internal auth/HTTP boundary.
 */
export declare function routeSearchTools(request: WebSearchRequest, signal: AbortSignal | undefined, deps: SearchToolRoutingDependencies): Promise<WebSearchResult>;
//# sourceMappingURL=search-tool-routing.d.ts.map