SKILL.md

name	update-pr-summary
description	This skill should be used when user asks to "update PR summary", "update PR description", "rewrite PR body", "refresh PR title and body", or explicitly invokes "update-pr-summary".

Update PR Summary

Update a PR title and description based on the complete changeset.

When explicitly invoked with extra text, treat that text as the PR number or URL.

Process

1. Fetch PR info

   • Use gh pr view <pr> --json title,body,baseRefName,headRefName.

2. Analyze the complete changeset

   • Use git diff <base-branch>...HEAD to review all committed changes in the branch.
   • Ignore unstaged changes.
   • Make the summary describe the full branch diff, not just the latest commit.

3. Generate the updated summary

   • Follow the create-pr skill format for title and body.
   • Title: a short human headline, capital first letter, no fix: or feat: prefix. Lead with the outcome, punchy over exhaustive.
   • Body: open on why, then short scannable bullets (one point each). Lead with the most visual proof. A webpage, UI, or design change MUST carry before/after images in a two-column table, never text describing the change. See the create-pr skill for uploading them to a release.
   • Numbers win: put benchmarks, counts, speedups and comparisons in a markdown table.
   • One read, one section, no headers. Plain words, no buzzwords.
   • No test plans, file lists, or line links.

4. Apply the update

   • Use gh pr edit <pr> --title "..." --body "...".