Luigi Ray-Montañez updated the multi-factor authentication device type documentation for the 18F/identity-idp repository, replacing references to 'otp' with 'phone' to better reflect the current API implementation. He focused on improving documentation clarity, ensuring that onboarding developers and users would encounter less confusion regarding expected MFA input types. Working in Ruby and YAML, Luigi collaborated with API and product teams to verify technical accuracy and maintain alignment between documentation and backend behavior. His approach emphasized precise technical writing and version-controlled documentation, resulting in a targeted update that reduced support inquiries without impacting release cycles or requiring additional changelog entries.