export interface VisionModelConfig {
    provider: string;
    model: string;
}
export declare const VISUAL_SYSTEM_PROMPT = "You are a visual analysis assistant for browser automation. You receive a screenshot of a web page and an instruction.\n\nCOORDINATES:\n- Pixel-based, relative to the visible viewport; (0, 0) is the top-left.\n- Estimate positions from the screenshot.\n\nRULES:\n- You only analyze; you never act.\n- Give exact (x, y) coordinates when the instruction asks for an element, so the caller can use coordinate click tools.\n- If the target is not visible, say so explicitly instead of guessing.\n- Be concise and actionable.";
interface ModelRegistry {
    find(provider: string, modelId: string): unknown;
    getApiKeyAndHeaders(model: unknown): Promise<{
        ok: true;
        apiKey?: string;
        headers?: Record<string, string | null>;
    } | {
        ok: false;
        error: string;
    }>;
}
export declare function createRegistryVisionCaller(visionConfig: VisionModelConfig, registry: ModelRegistry): (instruction: string, imageBase64: string, mimeType: string, signal?: AbortSignal) => Promise<string>;
interface BrowserClient {
    callTool(name: string, args: unknown, signal?: AbortSignal): Promise<unknown>;
}
export declare function handleAnalyzeScreenshot(client: BrowserClient, callVision: (instruction: string, imageBase64: string, mimeType: string, signal?: AbortSignal) => Promise<string>, args: {
    instruction?: string;
    pageId?: number;
}, signal?: AbortSignal): Promise<{
    content: Array<{
        type: string;
        text?: string;
    }>;
    isError?: boolean;
}>;
export {};
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