Yannik Sembritzki enhanced operational traceability in the smallstep/certificates repository by developing a feature that adds a provisionerName field to webhook requests for both x509 and SSH certificate operations. This backend improvement, implemented in Go, enables precise attribution of certificate actions to the responsible provisioner, supporting better auditability and compliance. Yannik focused on API development and webhook integration to ensure seamless workflows while increasing observability across provisioning processes. The work addressed the need for end-to-end traceability, reducing debugging time and improving governance. The feature was delivered as a single, auditable commit, reflecting a focused and well-scoped engineering effort.