Amazon Web Services (AWS) has integrated formal methods, particularly TLA+ and the P programming language, into their development practices to ensure system correctness and improve performance. By evolving their software testing strategies and adopting lightweight formal methods, AWS has successfully enhanced both developer efficiency and the reliability of their services. The introduction of tools like PObserve and the Fault Injection Service (FIS) further bridges the gap between design-time validation and production implementation.

AWS has introduced Kiro, an "agentic IDE" designed to improve code quality by generating specifications in the form of user stories rather than directly producing code. Built on the open-source Code OSS editor, Kiro leverages generative AI to assist developers by creating production-ready specs and automating code reviews, while also addressing the issues associated with vibe coding. The tool is currently in preview and will be offered at a subscription price of $19.99 per month.