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Ship an Open-Source Patch With a Reviewer Question Bank, Not Just a Diff

A focused open-source PR explains its purpose, expected behavior, validation, and unresolved decisions. Use these reviewer questions without overriding the repository’s own process.
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A strong open-source pull request (PR) gives reviewers the context to judge the change without having to infer its purpose from the code. Alongside a focused patch, explain the problem, intended behavior, project-specific validation, and any genuine decisions that need maintainer input. Use the question bank below as an adaptable aid—not a mandatory universal template—and follow the target repository’s current contribution instructions first.

Start with the repository’s contribution rules

Open-source projects set their own expectations for code style, development setup, tests, and the pull-request process. Before changing code, read the target repository’s current guidance rather than assuming that a familiar workflow applies. GitHub’s guide to contributing to a project recommends checking project-specific instructions before submitting.

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  • Find the README, contribution guide, pull-request template, and any code of conduct relevant to participation.
  • Check the license and security-reporting guidance where they affect the proposed change or how you should report a vulnerability.
  • Confirm that the project accepts this kind of contribution, then follow its setup and testing instructions.
  • Look for an existing issue or discussion and check whether someone is already working on the same problem.

GitHub also explains how repositories can use templates to collect information from contributors. Check the project’s own pull-request template and keep its required fields intact. A question bank should complement the project’s process, not replace it.

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Make the patch understandable before reviewers read the diff

In the PR description, explain what problem the patch addresses, why it belongs in this repository, and what behavior should change. Link the issue or discussion that led to the work when one exists. State the scope plainly: what the patch changes, and what it deliberately leaves alone.

Describe the expected behavior in observable terms. If compatibility matters, say what existing behavior should remain unchanged. This lets reviewers first assess the purpose and fit of the contribution, then examine implementation details. Apache Hop’s pull-request review guide uses a similar order, asking reviewers to consider whether a contribution is well described and has consensus before moving on to detailed code review.

Report validation honestly

Tell reviewers which project-specific tests and checks you ran, and give enough detail to identify them. Mention relevant manual validation, such as a changed interface or behavior that automated tests do not cover. If a check could not be run, say which one and why; do not imply that unrun checks passed. Follow the repository’s testing guidance, which may specify setup or checks beyond the ones you usually use.

Open Source Guides’ guide to contributing to open source emphasizes making contributions reviewable and explains that a PR can be opened early as a draft or marked work in progress. Early status is useful when you want feedback before the patch is finished; it is not a substitute for describing what is ready to review.

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Adapt this reviewer question bank

Use the prompts that clarify a real issue for this change. Answer straightforward questions in the description rather than making reviewers ask them. Reserve direct questions for choices where maintainer guidance could change the implementation or prevent rework.

  • Purpose and project fit: What user, maintainer, or project problem does this patch address? Is it already discussed in an issue, and is anyone else working on it?
  • Scope and behavior: What is the smallest change that solves the problem? What observable behavior should change, and what should remain compatible?
  • Edge cases: Which relevant edge cases or failure paths did you consider? Is any behavior still uncertain?
  • Validation: Which project-specific tests or checks did you run? What could not be tested, and why?
  • Documentation and release impact: Does the change need documentation, examples, release notes, or migration notes?
  • Maintainer decisions: Is there a design, compatibility, or scope choice where guidance would prevent rework?
  • Limits and follow-up: What known limitation or out-of-scope issue should reviewers know about?
  • Review focus: Where should reviewers start, and which files or behaviors deserve particular attention?

This bank is an editorial aid, not a checklist published verbatim by one project. Keep it short enough to answer efficiently. If no response is needed, turn a prompt into a concise note—for example, identify a known limitation without asking the reviewer to decide something already settled.

Put reviewer questions where they will be seen

Place the selected questions in the PR description, or in the repository’s designated reviewer-notes field if it has one. Preserve mandated template sections and avoid putting essential rationale in a separate comment that reviewers may miss. When you want early feedback, label the PR as a draft or work in progress and clearly label the reviewer notes; Open Source Guides describes both options in its contribution guidance.

Make review state and follow-up easy to track in the existing contribution thread. Open Source Guides advises against force-pushing after review begins because it can make changes harder to follow. GitHub’s contribution guide also covers the fork-and-pull-request workflow and cautions against force pushes after review starts.

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Choose questions that match the project and stage of review

There is no single review template across open-source projects. Before adding prompts, compare them with the repository’s own process and ask whether they help at this stage:

  • Project fit: Does the PR follow the contribution guide and template?
  • Review order: Can a maintainer judge the purpose and acceptance of the change before spending time on detailed code feedback?
  • Evidence: Are tests, checks, relevant screenshots, or honest testing limits included where appropriate?
  • Communication: Are related discussions linked, review status clear, and the appropriate reviewer identified if the project expects that?
  • Scope: Are necessary changes distinguished from useful but out-of-scope suggestions?

The prompts should serve the project’s workflow rather than create a competing one. For example, Apache Hop’s guide prioritizes description and consensus before detailed review; Git’s reviewing guidelines discuss concise review-state descriptions, links to relevant threads, and separating out-of-scope suggestions. Creative Commons’ PR guidance sets out its own expectations and checklist, including requesting a review if one is not assigned automatically. These are examples of differing project practices, not rules that apply everywhere.

A practical sequence for submitting the patch

  1. Inspect the repository: Read its current contribution instructions, template, setup guidance, and relevant policies.
  2. Check existing work: Look for a related issue or discussion and verify that the change is not duplicated or already underway.
  3. Keep the patch focused: Make the smallest change that addresses the stated problem, and avoid bundling unrelated cleanup.
  4. Run the requested checks: Use the project’s setup and tests; record what passed and what you could not run.
  5. Write the PR description: Explain motivation, scope, expected behavior, and validation without requiring a code read to understand the goal.
  6. Add only useful reviewer prompts: Ask about real unresolved decisions; answer routine context questions yourself.
  7. Submit through the normal process: Use draft or work-in-progress status for early feedback where appropriate, then respond to feedback in the existing thread.

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