Observability examples enact what you’d add to a production deployment. Sources underDocumentation Index
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examples/observability/.
| Name | Scenario | Source |
|---|---|---|
obs_event_system | Add lightweight LLM-call timing logs without changing the chain code — attach a TimedLogger Observer. | src |
obs_evaluation | Regression eval — given 5 known (question, expected_answer) pairs, score the agent. Run in CI. | src |
obs_health_monitoring | Pre-flight provider check — verify the LLM is reachable at startup; fail fast with a clear error. | src |
How to run
See also
Callbacks & observers
The user guide.
Trace with Langfuse
Production observability.
Evaluation
Datasets, scorers, reports.