/**
 * Leaper Agent – Vision Tool
 * Image analysis, OCR, and image-to-text via LLM multimodal APIs.
 */
import type { ToolDefinition } from './registry.js';
export interface VisionAnalyzeOptions {
    image: string;
    prompt?: string;
    model?: string;
    max_tokens?: number;
}
export interface VisionResult {
    success: boolean;
    text?: string;
    error?: string;
    model?: string;
    tokens_used?: number;
}
export interface ImageData {
    base64: string;
    mediaType: string;
}
export declare function isSafeImageUrl(url: string): boolean;
export declare function detectMediaType(source: string): string;
export declare function loadLocalImage(filePath: string): ImageData;
export declare function fetchRemoteImage(url: string): Promise<ImageData>;
export declare function loadImage(source: string): Promise<ImageData>;
export declare function analyzeImage(opts: VisionAnalyzeOptions): Promise<VisionResult>;
export declare const visionTool: ToolDefinition;
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