During February 2025, Tianze Cui enhanced the lint-files.py diagnostics in the casey/bitcoin repository by refining error message clarity for filename linting. By consolidating two commits, Tianze removed redundant words from diagnostic outputs, reducing noise and making it easier for developers to triage and debug linting issues. The work focused on code readability and maintainability, applying disciplined commit hygiene and clear documentation throughout the process. Using Python and static analysis tooling, Tianze improved the messaging logic within the script, ensuring that linting feedback is concise and actionable. No major bugs were addressed, but overall code quality and consistency were strengthened.