/**
 * Chunked upload — split large markdown into upload-safe chunks.
 *
 * Splits on heading boundaries (H1/H2) when possible.
 * Falls back to forced split when size limits are exceeded.
 */
export interface ChunkConfig {
    /** Max lines per chunk (default: 300) */
    maxLines: number;
    /** Max bytes per chunk (default: 50KB) */
    maxBytes: number;
    /** Split on heading boundaries only (default: true) */
    splitOnHeadings: boolean;
}
export interface Chunk {
    index: number;
    markdown: string;
    lineCount: number;
    byteSize: number;
}
/**
 * Split markdown into chunks for upload.
 * Respects heading boundaries when possible.
 */
export declare function splitMarkdown(mdText: string, config?: Partial<ChunkConfig>): Chunk[];
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