Individual skill

pr-explainer

A pull request explained for reviewers: what changed and why, a before and after, risks and the test plan, and a guided tour of the files, drawn from the branch commits and diff.

packages/content/assets/open-design/skills/pr-explainer/SKILL.md

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Observed behavior
Instructions only
Last checked
Nov 4, 2026

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1,045
Repository last updated
Nov 7, 2026
License
MIT

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Files and excerpt

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# PR Explainer

**Intent.** Helps a reviewer understand a change in five minutes and review it in the right order. It is a guide to the diff, not a copy of it.

## Ground it

Write only what the sources say. Gather them yourself before writing a word:

- `git log --oneline <base>..HEAD` and `git diff --stat <base>...HEAD` (base: `main` unless the user says otherwise);
- `git diff <base>...HEAD -- <path>` for the files that matter, and the tests that changed;
- if `gh` is available and a PR exists, `gh pr view --json title,body,files,commits` and linked issues.

Keep the list of files, commits and refs you read: they go in a **Sources** section at the bottom of the page and in `sources` when you register (`register_open_design_artifact` with kind `html`). If something the document needs isn't in the sources, ask the user, or mark it plainly as an open question. Never invent numbers, dates, names or quotes.