Worked on the AstroNvim/astrocommunity repository to enhance the reliability of Ansible YAML filetype detection. Focused on improving the accuracy of filetype recognition by refining the regular expression logic, specifically anchoring patterns to the start of a line to ensure that 'hosts:' or 'tasks:' are only matched when they appear at the beginning. This adjustment reduced false positives from similar strings elsewhere in files, directly improving developer experience and workflow stability. The work was implemented using vimscript and regex, with Lua as the primary language, emphasizing maintainability and correctness over new feature development during the reported period.