Worked on the Planning-Inspectorate/back-office repository to enhance the accuracy and governance of architecture diagrams by addressing a critical Structurizr syntax issue in the workspace.dsl file. Focused on Architecture as Code and DevOps practices, the work involved correcting the tagging of the GOV Notify external system within C4 diagrams, ensuring external systems were represented accurately for stakeholders and auditors. Using DSL and infrastructure skills, the update improved clarity in architectural documentation, reduced interpretation risk during reviews, and aligned diagram tooling with governance standards. No new features were shipped, but the bug fix laid a foundation for future improvements in diagram tooling.