Function isEncryptedKeyError

src/node/runtime/SSH2ConnectionPool.ts:214–225

* Detect if error is due to encrypted key without passphrase. * ssh2 throws parse errors like "Cannot parse privateKey: Encrypted private OpenSSH key detected, * but no passphrase given" when encountering encrypted keys without a passphrase. * We treat these as auth failures so the retry loop can

(error: unknown)

 * We treat these as auth failures so the retry loop can skip the key and try agent-only.
 */
function isEncryptedKeyError(error: unknown): boolean {
  if (!error) {
    return false;
  }
  const message = errorMessageText(error);
  return (
    message.includes("Encrypted private key detected") ||
    message.includes("Encrypted private OpenSSH key detected") ||
    message.includes("Encrypted PPK private key detected") ||
    (message.includes("Cannot parse privateKey") && message.includes("ncrypted"))
  );
}

function isAuthFailure(error: unknown): boolean {
  if (!error) {