STLC needs a revisit now as traditional testing methods needs upgrade in form of new frontier opened by GenAI based ecosystem in form Prompt engineering , Agents , RAGs and new Functional Language Model . The Multi-Agent Systems (MAS) – a paradigm shift harnessing the power of collective artificial intelligence to foster efficiency, resilience, and adaptability in organisational processes. Let us deep dive how we can use it in our real life scenario for UI/API and other kind of testing where creation , maintenance and decision making part of test automation can be delegated to AI agents . How agents can collaborate with human and other agents to get maximum ROI for organisations . The usage in agents particularly in Test case creation , writing automation scripts , code reviews , analysing report , Test Data Management can bring efficiency.