LLMs Are the Key to Mutation Testing and Better Compliance

This post details the development and application of Meta's Automated Compliance Hardening (ACH) tool, which uses Large Language Models (LLMs) to revolutionize software testing and compliance. It explains how LLMs overcome the traditional barriers to mutation testing, enabling scalable, realistic mutant generation and the detection of equivalent mutants. The post highlights ACH's success in generating privacy-relevant tests and its deployment across various Meta platforms, emphasizing the acceleration of developer velocity and the creation of a safer online ecosystem.