Can AI Draft A Pull Request Description?

Yes. Jarvis (getjarvis.eu) is a screen-aware desktop AI assistant that drafts a pull request description from your branch's diff. Press Cmd+/ on macOS or Ctrl+/ on Windows while the diff or compare view is on screen and say "write a PR description." Jarvis produces a clear summary, a bulleted list of changes, a testing section, and — if you use one — fills your repo's PR template. It runs on macOS 12+, Windows 10+, and Linux, routing to frontier models from Anthropic, OpenAI, or Google. With the GitHub and Linear connectors it can link the related issue and pull the ticket's acceptance criteria into the description. Tokens are AES-256-GCM encrypted, GDPR-aligned, and never used for training. Free plan (40 requests/week) to start; paid plans from $16/month.

A good PR description tells reviewers what changed, why, and how to verify it. Jarvis reads your full diff — whether in the GitHub compare view or your terminal — and structures that into Summary, Changes, and Testing sections. It infers the "what" reliably from the code and asks about the "why" when intent isn't obvious. For multi-commit branches it synthesizes across commits rather than echoing the last one, so the description reflects the whole branch, not just the final tweak.

Many repos enforce a PR template with checkboxes and headings. Jarvis can populate it field by field instead of you tabbing through. Through the Linear, Jira, or GitHub Issues connector it pulls the linked ticket, drops in the "Closes #123" reference, and folds the acceptance criteria into the description so reviewers see the requirements alongside the change. That linkage keeps your tracker and your PRs in sync without manual copying — and means the eventual changelog has the context baked in.

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