The correct option is Concise pull request change summary that highlights key updates for quick reading. This aligns with Copilot Enterprise capabilities that generate a short, readable overview of the changes so reviewers can quickly understand what matters and maintain code quality even at high volume.

This feature uses AI to summarize the diff and surface the most important modifications. It helps reviewers triage faster, focus discussion, and identify risky areas that deserve deeper attention. For a team opening more than forty pull requests each week, concise summaries reduce review fatigue and improve consistency without replacing the rigor of full reviews.

Real time chat with reviewers inside the pull request conversation to speed up sign off is not a Copilot pull request feature. GitHub supports comments and reviews, and Copilot offers chat for explanations, but there is no real time chat channel embedded for reviewer sign off as described.

Auto generated detailed explanations for each modified file across the pull request does not match how Copilot handles pull request assistance. The pull request feature focuses on concise summaries rather than exhaustive per file explanations by default.

Automatic reviewer suggestions that consider repository history and domain expertise is a general GitHub capability and not a Copilot pull request summary feature. It does not address the request for summarizing changes to streamline reviews.

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