import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
export interface ResolvedImageResult {
    base64: string;
    filename: string;
}
export interface ImageResolveError {
    error: string;
}
export type ImageResolveOutcome = ResolvedImageResult | ImageResolveError;
/**
 * Resolves an image for detection tools.
 *
 * Resolution order:
 *   1. `image`      — direct base64 (programmatic callers, LLM retry with encoded data)
 *   2. `image_url`  — fetch from URL (signed GCS URL, public link, etc.)
 *   3. `image_path` — read local file (stdio mode). If file not found → Option B:
 *                      instruct the LLM to read & encode the file itself and retry.
 *   4. Elicitation  — ask the user via MCP form elicitation (Option C).
 *   5. Fallback     — return LLM-friendly instructions for retry.
 */
export declare function resolveImageInput(server: McpServer, opts: {
    image?: string | undefined;
    image_url?: string | undefined;
    image_path?: string | undefined;
    defaultFilename?: string | undefined;
    elicitMessage?: string | undefined;
}): Promise<ImageResolveOutcome>;