Amazon on March 31 added agentic AI to its OpenSearch Service, introducing an Investigation Agent that autonomously plans queries, executes them, reflects on results, and delivers structured root cause hypotheses ranked by likelihood, according to the AWS announcement. The update also includes an agentic chatbot for natural language querying and agent memory that persists across sessions and feature pages. It ships at no additional cost in nine AWS regions, with token-based usage limits.
Three Capabilities, One Pattern
The OpenSearch update bundles three features. The agentic chatbot lets engineering teams ask questions in natural language, generate and iterate Piped Processing Language (PPL) queries in Discover, and analyze visualizations. The Investigation Agent handles deeper root cause analysis: when triggered, it autonomously builds an investigation plan, runs queries, evaluates what comes back, and produces ranked hypotheses with full transparency into its reasoning, as Let’s Data Science reported. Agent memory means conversations carry forward across different feature pages and new browser sessions.
The architecture uses a plan-execute-reflect loop with separate planner and executor components. This is the same pattern showing up across enterprise agentic tools in 2026: the agent breaks a problem into steps, executes them, then evaluates whether the results answer the original question before deciding what to do next.
Third Agentic AWS Product in 48 Hours
This is not an isolated product launch. On March 31, Amazon also released its DevOps Agent for autonomous incident response and Security Agent for penetration testing into general availability. Three agentic products in 48 hours across three different AWS service lines — operations, security, and now observability — suggests a platform-level conversion strategy, not a one-off feature addition. Amazon is methodically embedding autonomous agent interfaces into its existing enterprise product portfolio, one service at a time.
Available regions include US East (N. Virginia and Ohio), US West (Oregon), Europe (Frankfurt, Stockholm, Spain, Ireland), and Asia Pacific (Tokyo, Sydney). Documentation is available via the OpenSearch Service agentic AI guide.