import { z } from "zod";
import type { AgentTool } from "@kenkaiiii/gg-agent";
import { escapeDrawtextValue, pickFont } from "../core/thumbnail-compose.js";
declare const ComposeThumbnailParams: z.ZodObject<{
    input: z.ZodString;
    output: z.ZodString;
    atSec: z.ZodNumber;
    text: z.ZodString;
    fontSize: z.ZodOptional<z.ZodNumber>;
    fontColor: z.ZodOptional<z.ZodString>;
    outlineColor: z.ZodOptional<z.ZodString>;
    position: z.ZodOptional<z.ZodEnum<{
        top: "top";
        center: "center";
        bottom: "bottom";
    }>>;
    fontFile: z.ZodOptional<z.ZodString>;
    width: z.ZodOptional<z.ZodNumber>;
}, z.core.$strip>;
export declare function createComposeThumbnailTool(cwd: string): AgentTool<typeof ComposeThumbnailParams>;
export { escapeDrawtextValue, pickFont };
/**
 * Resolve a brand-kit `fonts.heading` value to a readable absolute path.
 * Returns undefined when the kit doesn't define one or the file is missing.
 * Pure-ish (touches the filesystem) — exported for testing.
 */
export declare function pickBrandFont(cwd: string, heading: string | undefined): string | undefined;
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