Function numberSourceLines

src/mcp/tools.ts:363–370

* Prefix each line of a source slice with its 1-based line number, matching * the Read tool's `cat -n` convention (number + tab) so the agent treats it * the same way it treats Read output. * * @param slice contiguous source text (already extracted from the file) * @param firstLineNumber the

(slice: string, firstLineNumber: number)

 * @param firstLineNumber  the 1-based line number of the slice's first line
 */
function numberSourceLines(slice: string, firstLineNumber: number): string {
  const out: string[] = [];
  const split = slice.split('\n');
  for (let i = 0; i < split.length; i++) {
    out.push(`${firstLineNumber + i}\t${split[i]}`);
  }
  return out.join('\n');
}

/**
 * Unique line-prefix for a per-file source section in codegraph_explore output.