> ## Documentation Index
> Fetch the complete documentation index at: https://braintrust.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Score traces and datasets

> Open logs, experiments, and dataset rows in review mode, set scores, add comments, and move through rows efficiently to record human judgments.

Once you've [configured review scores](/annotate/human-review#configure-review-scores), reviewers record judgments row by row in review mode. This page covers starting a review, setting scores, and moving through rows efficiently.

## Start reviewing

1. Go to [**<Icon icon="list-checks" /> Review**](https://www.braintrust.dev/app/~/review) and select the type of data to review:
   * **Log spans**: production traces and debugging sessions.
   * **Experiment spans**: evaluation results and test runs.
   * **Dataset rows**: test cases and examples.
2. Select a row and set scores. You can also [add comments and tags](/annotate/labels) while reviewing.
3. Click **Mark complete** to record your review.

By default, marking a review complete keeps you on the current row. To move to the next row automatically, enable the **Auto-advance** toggle. The button then reads **Mark complete and continue**. You can also navigate with the **Next row** and **Previous row** buttons.

<Tip>
  You can also enter review mode directly from the [**<Icon icon="activity" /> Logs**](https://www.braintrust.dev/app/~/logs) table or an individual experiment table in [**<Icon icon="beaker" /> Experiments**](https://www.braintrust.dev/app/~/experiments) using the **Review** button or the `r` shortcut. The review will be scoped to the set of traces in the current filter. See [Review specific rows in Logs and Experiments](/kb/review-button-ignores-selected-rows-in-logs).
</Tip>

<Note>
  Not all score types appear on dataset rows. Only [categorical scores](/annotate/human-review#configure-review-scores) configured to "write to expected" and free-form scores are available for dataset reviews, since datasets store test data (input/expected pairs) rather than subjective quality assessments.
</Note>

When the same span is scored by more than one person, see [Review with multiple reviewers](/annotate/human-review/multiple-reviewers) for how Braintrust combines their scores.

## Change the trace layout

While reviewing log and experiment traces, you see detailed information about the flagged span by default. To switch between hierarchy, timeline, thread, and other layouts, see [Examine traces](/observe/examine-traces).

When the raw trace is hard to read, build a [custom view](/annotate/custom-views) that renders each span as a purpose-built annotation interface. This is especially useful for large-scale review and for subject-matter experts who shouldn't have to parse JSON to score accurately.

## Next steps

* [Manage review work](/annotate/human-review/manage-review-work) to assign and track review across your team
* [Review with multiple reviewers](/annotate/human-review/multiple-reviewers) on the same span
* [Add labels and corrections](/annotate/labels) to categorize and tag traces