I have Claude work on web app testing scripts written in java using JUnit and selenium. The scripts test a vibe maintained flight booking app for an airline I can't mention without doing myself. The app is maintained using copilot by another vender. Claude was given to our team by our employer. We aren't even employees of the airline just contractors under a vendor. Before Claude was adopted everyone secretly used whatever chatbot they preferred. I used opencode with Deepseek v4.