A hands-on walkthrough of using Postman Agent Mode connected to Dynatrace via MCP (Model Context Protocol) to perform root cause analysis on a PostgreSQL table lock incident. The author built a lab with a .NET 10 API, injected a deliberate blocking transaction, and used a single plain-English prompt to identify the root cause
Table of contents
The Investigation That Eats Your MorningWhat MCP Is and Why It MattersBuilding the Lab: The Real Secret Is TelemetryActiveGate and PostgreSQL ExtensionPostgreSQL Logging ConfigurationOneAgent and Deep MonitoringThe Baseline:The Incident: Injecting the LockGet Gessiel Lima Jr ’s stories in your inboxThe Investigation: One Prompt in Plain EnglishWhat Agent Mode FoundWhat Worked, and the Honest LimitationsWhat worked wellThe honest limitationsDynatrace vs Datadog: A Brief NoteSort: