Worked on enhancing cache reliability in the platformatic/platformatic repository, focusing on backend development and testing using JavaScript. Addressed a specific bug in the Valkey cache path by ensuring that DEL commands are only issued when there are actual entries to delete, using Set.size checks to prevent keyless DEL operations. This change eliminated a class of runtime errors related to empty DEL commands during tag revalidation, improving production stability. The work emphasized defensive caching strategies and code maintainability, with clear documentation and commit practices. No new features were released, as efforts centered on robust operations and long-term code hygiene.