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AI Agent Observability
What you need to know about observability when you live among agents
This book is 100% completeLast updated on 2026-11-15
Asking an AI assistant to build a TypeScript agent takes 5 minutes. Knowing why it called the same tool 5 times, invented a refund policy, or burned 10x your token budget in production takes observability.
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About
About the Book
Written in clear, accessible English for TypeScript developers, this hands-on guide shows you what really happens inside your AI agents and how to take full control of their quality, latency, privacy, and cost. Through working TypeScript examples using Firebase Genkit, LangChain + LangSmith, OpenTelemetry (gen_ai.*), and Progress Observability Platform, you will learn how to trace the ReAct reasoning loop, catch hallucinations before deployment, scrub sensitive user data, and set up real-time production alerts. Includes 20 chapters, 3 practical appendices, and full companion TypeScript code.
Author
About the Author
Dany Paredes
Software Engineer based in Barcelona, Google Developer Expert (GDE) in Angular, and Progress Champion. Author of over 230 technical articles with 1.4M+ reads on TypeScript, Angular, AI Agents, and Observability.
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