Function stripAnsi

src/security/sanitize.js:219–226

* Strip ALL ANSI escape sequences and C1 control bytes from a string. * Preserves printable text and ordinary whitespace (tab, newline).

(input)

 * Preserves printable text and ordinary whitespace (tab, newline).
 */
function stripAnsi(input) {
  if (typeof input !== 'string' || input.length === 0) return input;
  let out = input;
  for (const re of ANSI_RE) out = out.replace(re, '');
  // Also strip raw NUL and other non-tab/newline C0 controls
  out = out.replace(/[\x00-\x08\x0b\x0c\x0e-\x1f\x7f]/g, '');
  return out;
}

/**
 * Sanitize a tool result string before adding it to model context: