tool · inferred from evidence
launchd
A service management system on macOS that sets environment variables like SSH_AUTH_SOCK.
- Teleport tsh Yubikey gpg-agent SSH_AUTH_SOCK issues login agent certificate
When gpg-agent is running (used by Yubikeys to hold keys), `tsh` adds SSH certificates to the agent, which gpg-agent does not understand (gpg-agent does not support SSH certificates). This breaks logins and agent forwarding for Yubikey user