/**
 * Capture Agent — Alt Text Generation
 *
 * Generates accessible alt text for captured screenshots.
 * Adapts to the variant's locale for localized descriptions.
 * Cost: ~0.001 EUR per generation.
 */
import { type LLMProviderConfig, type LLMCallResult } from './llm-provider.js';
export interface AltTextResult {
    altText: string;
    llmResult?: LLMCallResult;
}
export interface AltTextContext {
    /** What the screenshot captures */
    description: string;
    /** Target URL */
    url: string;
    /** Locale for the alt text language */
    locale?: string;
    /** Page/preset name */
    presetName?: string;
}
/**
 * Generates alt text for a screenshot, localized to the variant's language.
 */
export declare function generateAltText(screenshot: Buffer, context: AltTextContext, llmConfig: LLMProviderConfig): Promise<AltTextResult>;