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Chat answers questions about a pull request’s code and changes while you review.

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Start a chat

Open Show agents in the review header, then choose New → New chat in the Agents panel. Pick a model and ask a question:
Walk me through the new error-handling path. What happens if the request times out?
Follow-up questions in the same conversation build on earlier answers:
Which tests cover that case? Is there a path where the error could be swallowed?

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Attach code

Select lines in the diff and choose Add to chat, or press ⌘J, to attach them to your question:
This caller still uses the old default. How does that interact with the new API?
Attachments link back to the code in the diff.

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Visibility

Chats are Private by default and visible only to their creator. The creator can switch a chat to Team, allowing anyone with access to the PR in Assert to read it and ask follow-up questions.

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From chat to feedback

Chat doesn’t edit the PR branch. To act on an answer, write a review comment or suggestion, or send feedback to Cursor or Devin to have an agent make the fix.