Elastic Blog | Elasticsearch, Kibana, and ELK Stack Follow Gauntlet: What happens when your agent's tools fight back The Elasticsearch Agent Builder Hackathon spotlighted Gauntlet, a top-three project that uses mocking agents to mutate tool calls, expose hidden failures, and improve AI agent reliability. https://www.elastic.co/blog/agent-builder-hackathon-gauntlet elastic.co
