Function hasMarkdownSyntax

src/components/Markdown.tsx:32–36

(s: string)

// One pass instead of 10× includes scans.
const MD_SYNTAX_RE = /[#*`|[>\-_~]|\n\n|^\d+\. |\n\d+\. /;
function hasMarkdownSyntax(s: string): boolean {
  // Sample first 500 chars — if markdown exists it's usually early (headers,
  // code fence, list). Long tool outputs are mostly plain text tails.
  return MD_SYNTAX_RE.test(s.length > 500 ? s.slice(0, 500) : s);
}
function cachedLexer(content: string): Token[] {
  // Fast path: plain text with no markdown syntax → single paragraph token.
  // Skips marked.lexer's full GFM parse (~3ms on long content). Not cached —