Lesson 1960 of 2116
Logging Agent Runs So You Can Debug Them Later
Capture decisions, tool inputs, and outputs in a replayable log.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1The premise
- 2logging
- 3trace
- 4replay
Concept cluster
Terms to connect while reading
Section 1
The premise
You cannot debug an agent you cannot replay. Structured logs of every step are the difference between fixing a bug and shrugging.
What AI does well here
- Emit a structured event per tool call (input, output, latency).
- Reconstruct a session from the event log alone.
What AI cannot do
- Tell you which step was 'wrong' without your judgment.
- Log information that was never captured at runtime.
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