Function sampleResultIsError

actions/setup/js/apply_samples.cjs:501–512

* Return true when an MCP tool-call result carries an application-level error * payload, regardless of whether the transport-level `isError` flag was set. * * Safe-output handlers encode errors as `{"result":"error", ...}` inside the * first content text item. This helper provides a defense-in-

(result)

 * @returns {boolean}
 */
function sampleResultIsError(result) {
  if (!result) return false;
  if (result.isError) return true;
  const text = result.content && result.content[0] && result.content[0].text;
  if (!text) return false;
  try {
    const parsed = JSON.parse(text);
    return !!(parsed && parsed.result === "error");
  } catch {
    return false;
  }
}

/**
 * Append a synthetic terminal_reason: completed marker to the engine stdio log