import { z } from "zod";
import type { AgentTool } from "@kenkaiiii/gg-agent";
declare const GenerateYouTubeMetadataParams: z.ZodObject<{
    transcript: z.ZodString;
    channelStyle: z.ZodOptional<z.ZodString>;
    videoTopic: z.ZodOptional<z.ZodString>;
    model: z.ZodOptional<z.ZodString>;
}, z.core.$strip>;
export declare function createGenerateYouTubeMetadataTool(cwd: string): AgentTool<typeof GenerateYouTubeMetadataParams>;
/**
 * Build a channel-style hint from the brand kit when the caller didn't
 * pass `channelStyle` explicitly. Returns undefined when the kit is
 * missing the bare minimum (no channelName) so the LLM falls back to
 * inferring tone purely from the transcript.
 *
 * Pure — exported for testing.
 */
export declare function buildChannelStyleFromBrand(brand: {
    channelName?: string;
    subscribeUrl?: string;
} | null): string | undefined;
export {};
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