<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=480231) </details> <!--IssueSummary end--> <!--This issue template can be used as a great starting point for feature requests. Learn more about the process: https://handbook.gitlab.com/handbook/product/how-to-engage/#customer-feature-requests. The section "Release notes" can be used as a summary of the feature and is also required if you want to have your release post blog MR auto generated using the release post item generator: https://about.gitlab.com/handbook/marketing/blog/release-posts/#release-post-item-generator. The remaining sections are the backbone for every feature in GitLab. The goal of this template is brevity for quick/smaller iterations. For a more thorough list of considerations for larger features or feature sets, you can leverage the detailed [feature proposal](https://gitlab.com/gitlab-org/gitlab/-/blob/master/.gitlab/issue_templates/Feature%20proposal%20-%20detailed.md).--> ### Release notes <!--What is the problem and solution you're proposing? This content sets the overall vision for the feature and serves as the release notes that will populate in various places, including the [release post blog](https://about.gitlab.com/releases/categories/releases/) and [Gitlab project releases](https://gitlab.com/gitlab-org/gitlab/-/releases). "--> A prospect who is currently evaluating GitLab Duo asked if it's possible to utilize Duo functionality to summarize diffs between branches in a code repository. Given LLMs ability to summarize a large volume of information, this would seem like a very good use case and could help users quickly assess diffs between branches when merging code. ### Problem to solve <!--What is the user problem you are trying to solve with this issue?--> Summarize potentially large changes between branches in a repository upon merge, or even prior to merge to quickly identify and asses differences between code branches ### Proposal <!--Use this section to explain the feature and how it will work. It can be helpful to add technical details, design proposals, and links to related epics or issues.--> Functionally, I would think would be similar to how Troubleshooting works: you could have a lot of information in the diff between branches and a LLM could summarize those diffs. But as I'm not an engineer, I can't speak to the actual implementation. From a UI standpoint, this could be a standalone button and/or a command to Duo Chat (depending on implementation). ### Intended users <!--Who will use this feature? If known, include any of the following: types of users (e.g. Developer), personas, or specific company roles (e.g. Release Manager). It's okay to write "Unknown" and fill this field in later. Personas are described at https://handbook.gitlab.com/handbook/product/personas/ * [Parker (Product Manager)](https://handbook.gitlab.com/handbook/product/personas/#parker-product-manager) * [Delaney (Development Team Lead)](https://handbook.gitlab.com/handbook/product/personas/#delaney-development-team-lead) * [Presley (Product Designer)](https://handbook.gitlab.com/handbook/product/personas/#presley-product-designer) * [Sasha (Software Developer)](https://handbook.gitlab.com/handbook/product/personas/#sasha-software-developer) * [Priyanka (Platform Engineer)](https://handbook.gitlab.com/handbook/product/personas/#priyanka-platform-engineer) * [Sidney (Systems Administrator)](https://handbook.gitlab.com/handbook/product/personas/#sidney-systems-administrator) * [Rachel (Release Manager)](https://handbook.gitlab.com/handbook/product/personas/#rachel-release-manager) * [Simone (Software Engineer in Test)](https://handbook.gitlab.com/handbook/product/personas/#simone-software-engineer-in-test) * [Allison (Application Ops)](https://handbook.gitlab.com/handbook/product/personas/#allison-application-ops) * [Ingrid (Infrastructure Operator)](https://handbook.gitlab.com/handbook/product/personas/#ingrid-infrastructure-operator) * [Dakota (Application Development Director)](https://handbook.gitlab.com/handbook/product/personas/#dakota-application-development-director) * [Dana (Data Analyst)](https://handbook.gitlab.com/handbook/product/personas/#dana-data-analyst) * [Eddie (Content Editor)](https://handbook.gitlab.com/handbook/product/personas/#eddie-content-editor) * [Amy (Application Security Engineer)](https://handbook.gitlab.com/handbook/product/personas/#amy-application-security-engineer) * [Isaac (Infrastructure Engineer)](https://handbook.gitlab.com/handbook/product/personas/#isaac-infrastructure-security-engineer) * [Alex (Security Operations Engineer)](https://handbook.gitlab.com/handbook/product/personas/#alex-security-operations-engineer) * [Cameron (Compliance Manager)](https://handbook.gitlab.com/handbook/product/personas/#cameron-compliance-manager)--> This feature would be applicable (at a minimum) to Sasha, Delaney, Priyanka, Rachel, and Dakota. ### Feature Usage Metrics <!--How are you going to track usage of this feature? Think about user behavior and their interaction with the product. What indicates someone is getting value from it? Explore (../../doc/development/internal_analytics/internal_event_instrumentation/quick_start.md) for a guide.--> If implemented, usage could be added to the AI Impact Dashboard. ### Does this feature require an audit event? <!--- Checkout these docs to know more https://docs.gitlab.com/ee/development/audit_event_guide/#what-are-audit-events https://docs.gitlab.com/ee/administration/audit_events.html ---> Uncertain <!--Label reminders Make sure to add the appropriate labels for the product stage and/or group (e.g ~"devops::plan") if known and add a comment tagging the appropriate Product Manager. Use the following resources to find the appropriate labels: - Use only one tier label choosing the lowest tier this is intended for - https://gitlab.com/gitlab-org/gitlab/-/labels - https://about.gitlab.com/handbook/product/categories/features/ Examples: /label ~group:: ~section:: ~Category: /label ~"GitLab Free" ~"GitLab Premium" ~"GitLab Ultimate"-->