Milena Wojtczak developed a new 'whoami' command for the Snowflake-Labs/sansshell repository, enabling users to view detailed identity information such as username, certificate issuer, validity, and group memberships directly from the CLI. She implemented this feature using Go, focusing on secure authentication visibility through mTLS integration. By surfacing explicit identity context from the current credential source, Milena’s work improved both user support and incident diagnosis, allowing for faster troubleshooting. The depth of her contribution lies in the end-to-end delivery and validation of this feature, which enhanced the overall transparency and usability of authentication within the sansshell client environment.