July 2025 monthly summary for microsoft/git: Focused on strengthening security test coverage for post-checkout hooks. Fixed Security Test: Correct Post-checkout Hook Path Verification by updating the test to verify the actual path a malicious repository could write to, rather than a generic path. Commit f3ef347bb2e0332872088bb00c8ba9801c578822 ('t7450: inspect the correct path a broken code would write to'). Result: more accurate security assertions, reduced risk of undetected path-writability, and improved reliability of the test suite. Key accomplishments include a precise fix in the security test, clear commit messaging, and reinforced test-driven approach. Technologies demonstrated: test frameworks and repository tooling.