User feedback is an excellent source for assessing the quality of an LLM application. In Baserun, feedback is collected either as a 0-1 score or custom defined metadata. The feedback is then displayed in the input/output tab inside the trace detail or request detail panel. 
client.feedback(name: str, score: float, metadata: Optional[Dict] = None) -> Tag:

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Arguments

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name
string
An optional name that will show up in the Trace/Completion detail view > Feedback section.
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score
float
required
A score between 0 and 1
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metadata
object
Extra information about the feedback. For example, a user comment.

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Instructions

Within a LLM request or a trace, after create an client 
client.feedback (0.9, metadata={"comment": "Great response!"})

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Adding feedback to a completed trace or completion

Check out the Tags page for more information on how to add feedback to a trace or completion.