export type ContextMode = "page_only" | "site_only" | "hybrid";
/**
 * `page_only` reads the host page's DOM; `site_only` the crawled index;
 * `hybrid` both.
 *
 * 🚨 UNKNOWN IS NOT DISABLED. Both flags arrive on the operator's config, which
 * the loader fetches asynchronously, so before it lands, and on any mount that
 * never receives one, they are `undefined`. Treating that as `false` sent
 * `page_only`, which stops the assistant consulting the site index at all: it
 * then refuses questions its own corpus answers and, having no evidence, falls
 * back on the model's priors.
 *
 * MEASURED 2026-08-29, same question and corpus:
 *   page_only → grounding "refused", 0 citations, invented billing terms
 *   hybrid    → grounding "grounded", 10 citations, the real plan table
 *
 * Defaulting permissive is safe because the server is the authority: it
 * defaults both features to true and re-clamps the mode in
 * `resolveAssistantContextMode`. An operator who really disabled one still gets
 * it enforced there.
 */
export declare function resolveContextMode(features?: {
    domRagEnabled?: boolean;
    siteRagEnabled?: boolean;
}): ContextMode;