/**
 * @fileoverview Markdown boundaries for upstream text that `format()` interpolates
 * into `content[]`. A single-line field (title, highlight title, poll-option text)
 * is escaped just enough that it cannot end the server's own markup around it. A
 * body is quoted line by line and otherwise left verbatim, so code stays intact.
 * Usernames, URLs, IDs, and server tokens are interpolated as they are.
 * @module mcp-server/tools/markdown-escape
 */
/**
 * Escape a single-line upstream field so it cannot close or open the server's
 * markup around it — a `**…**` wrapper, a code span, a link, an HTML tag, or a
 * new line (each line break becomes a space) — and so it reads as typed in raw
 * text. This is not a full Markdown escape: `_under_` can still render as
 * emphasis, and a typed `&copy;` as ©. `a < b`, `[pdf]`, and `snake_case` are
 * left unchanged.
 */
export declare function escapeInline(text: string): string;
/** {@link escapeInline} for a field quoted in `"…"`, where a `"` would end the quote. */
export declare function escapeQuoted(text: string): string;
/**
 * Escape an Algolia title highlight for the search footer, leaving its `<em>`
 * and `</em>` markers as markup. `|` is escaped too, since the footer separates
 * its segments with ` | ` and a title reading `x | terms: y` would otherwise
 * imitate one. A literal `<em>` typed into the title is indistinguishable from
 * a marker and passes through the same way.
 */
export declare function escapeHighlight(text: string): string;
/**
 * Quote an upstream body: every line gets `> ` after `indent`, and an empty line
 * a bare `>`, so no line of the body can start a server-authored line. The only
 * escape inside the body is the `[` of a link reference definition, which would
 * otherwise reach past the quote; everything else, code included, stays
 * verbatim. A quote absorbs the next non-blank line through lazy continuation,
 * so the caller follows the body with a blank line whenever server text comes
 * after it.
 */
export declare function quoteBody(text: string, indent?: string): string;
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