· Vector AI Lab
You can’t fix what you can’t see
How end-to-end traces turn agent debugging from guesswork into engineering.
When an agent gives a wrong answer, the cause is usually upstream: a retrieval that missed, a tool that returned an error, a context window that silently dropped instructions.
Traces make those causes visible. Every model call, retrieval and tool call is a span with its inputs, outputs, timing and cost, and every trace is tied to the version that produced it.