import type { LlmContentBlock } from "@slowcook-ai/core";
/**
 * Extract image URLs from an issue or comment body. GitHub renders both
 * HTML `<img src="...">` (its user-attachments format) and markdown
 * `![alt](url)` into images; we support both.
 *
 * Returns URLs in the order they appear. Deduplicates within the same
 * body — a screenshot referenced twice only counts once.
 */
export declare function extractImageUrls(body: string): string[];
/**
 * Fetch one image URL and return it as an LLM image content block, or
 * `null` if the fetch or decode fails. Never throws — we would rather
 * drop a screenshot than halt the whole refine run.
 */
export declare function fetchImageAsBlock(url: string, fetchImpl?: typeof fetch): Promise<LlmContentBlock | null>;
/**
 * Turn a text body into a content array when it references image URLs
 * that resolve successfully. Returns the original string when there's
 * nothing to enrich — preserves the text-shorthand path for the common case.
 *
 * Images are appended AFTER the text block so the LLM reads the prose
 * first, then sees what it describes. The original `<img>` / markdown
 * references stay in the text so the agent can match text mentions to
 * the image it's looking at.
 */
export declare function enrichBodyWithImages(body: string, fetchImpl?: typeof fetch): Promise<string | LlmContentBlock[]>;
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