As developers move to professional, reliable workflows using agents, unexpected errors that are hard to notice, known as "silent failures," can occur. When a language model interacts with multiple Model Context Protocol (MCP) servers, regular program logs do not show the detailed steps by which the model, the main program, and the tools exchange information.

This beginner-friendly session offers practical skills: learn hands-on ways to watch and fix Model Context Protocol (MCP) interactions using the OpenTelemetry (OTel) toolkit, and follow a request from the first large language model (LLM) prompt through to the last tool in the process. You'll also see each step with OTel, making it easier to find and solve hidden problems and making your workflow more reliable and clear.

1. The "Trace" Mindset: Mapping the request journey across the Open-Source MCP Host, the client, and the server.

2. Standardizing Logs: Implementing structured logging within your OSS MCP servers so they integrate seamlessly with the broader cloud-native ecosystem.

3. Debugging Failures: Identifying latency bottlenecks and prompt injection attempts in tool-calling using OSS telemetry tools.