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AI Agent Observability: Why Did It Do That?

By Ashish Dubey

Published: September 22, 2026

AI Agent Observability — TrueFoundry

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Frequently asked questions

What is AI agent observability?

Recording an agent’s full execution trajectory — sessions, turns, model calls and tool calls, with arguments, results, tokens, cost and latency — so you can answer why it behaved as it did. It differs from application monitoring in the unit of observation: a request has a start and an end, while a trajectory is a nested sequence in which any level can loop.

How is agent observability different from LLM observability?

LLM observability is a subset covering the model call: prompt, completion, tokens, latency, cost. Agent observability adds everything around it — which tools ran, in what order, with what arguments and results, and how many times a turn went around before stopping. Most real failures live in that structure, not in a single completion.

Do I need to instrument my agent code for agent tracing?

Not if model and tool traffic already routes through a gateway, since it records each hop as a side effect of serving it. Framework-level SDK instrumentation adds internal reasoning steps the gateway never sees, so the two are complementary, not alternatives.

Can I deploy TrueFoundry in my own VPC or on-prem?

Yes — VPC, on-prem, air-gapped, hybrid, or across multiple clouds, with no data leaving your domain.

Does TrueFoundry support MCP and AI agents generally?

Yes. It includes an MCP Gateway, an Agent Gateway, and an MCP & Agents Registry with tool-level access control. Agents on LangGraph, CrewAI, AutoGen, or a custom framework can all be governed centrally.

Ele se integra com a minha stack de observabilidade existente?

Sim. O gateway é compatível com OpenTelemetry e se integra com Grafana, Datadog, Prometheus ou a sua stack preferida. Ele rastreia cada requisição, do prompt à execução da ferramenta e do modelo, para que você obtenha logs unificados sem precisar remover o que você já usa.

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