During February 2026, Muz worked on the rubocop/rubocop repository, focusing on improving the correctness and robustness of constant scope detection in the Lint/UselessConstantScoping cop. He addressed false positives by implementing logic to evaluate the closest access modifier to each constant definition, including nuanced handling for files containing multiple access modifiers. This approach ensured that offenses were only raised when appropriate, preserving compatibility with existing private_constant directives. Collaborating with Koichi Ito for cross-review, Muz applied his expertise in Ruby, linting, and static code analysis to deliver a targeted bug fix that enhanced user trust in RuboCop’s linting results.