export declare function autoCloseMarkdown(text: string): string;
/**
 * What markdown context is *still open* at the end of `text`? Used to
 * decide what opening marker(s) the NEXT chunk needs prepended when we
 * split a long buffer across multiple platform messages mid-formatting
 * — without this, a chunk boundary inside a ` ```python … ``` ` block
 * would have the second message start with raw code that the platform
 * renders as plain text.
 */
export interface OpenMarkdownContext {
    /** If inside an unclosed fence, the language tag (may be ""). null otherwise. */
    fenceLang: string | null;
    /** True if an unclosed single-backtick inline-code span is in flight. */
    inlineCode: boolean;
    /** Bold/italic/strike markers still open, in stack order (outermost first). */
    brackets: string[];
}
export declare function detectOpenContext(text: string): OpenMarkdownContext;
/**
 * Render the opener prefix for a continuation chunk so it can stand on
 * its own as a self-renderable markdown fragment. E.g. for an open
 * `` ```python `` fence, returns ` ```python\n `; for an open `**` bold,
 * returns `**`.
 */
export declare function renderContextOpener(ctx: OpenMarkdownContext): string;
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