/**
 * The "websearch has no API key" startup notice.
 *
 * `websearch` works with no configuration at all, but the keyless default is
 * scraped DuckDuckGo HTML: it is rate-limited hard and can fail outright, and
 * the failure surfaces as a bad search rather than as a setup problem. So when
 * the tool is active and no keyed backend is configured, the session says so
 * once — the same shape as the Anthropic extra-usage notice, including the
 * `/settings` switch that turns it off.
 */
import type { WarningSettings } from "../../core/settings-types.js";
import { type WebtoolsSearchSettings } from "../../core/tools/webtools-shared.js";
export declare const WEBSEARCH_API_KEY_TITLE = "Web search has no API key";
export interface WebSearchApiKeyNoticeInput {
    /** Tools the session actually exposes; the notice is pointless without `websearch`. */
    activeToolNames: readonly string[];
    /** Warning switches from settings (`warnings.websearchApiKey`). */
    warnings: WarningSettings;
    /** The `webtools.search` block, as the binary would read it. */
    search?: WebtoolsSearchSettings;
}
export interface WebSearchApiKeyNotice {
    title: string;
    body: string[];
}
/**
 * The notice to show, or undefined when there is nothing to say: the tool is
 * off, a keyed backend is configured, the user pinned the keyless backend on
 * purpose, or the warning is switched off.
 *
 * Pure, so the decision is testable without a TUI; the caller owns the
 * once-per-session latch.
 */
export declare function websearchApiKeyNotice(input: WebSearchApiKeyNoticeInput): WebSearchApiKeyNotice | undefined;
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