pr-description-writer

Purpose

Eliminate the "WIP" or blank PR description habit. Produce a structured, informative PR body from git diff that gives reviewers everything they need without chasing the author for context.

Trigger

Apply when:

• "write PR description", "generate PR body", "open PR", "寫 PR 描述"
• User is about to open a pull request and has no description written
• "what should I put in my PR"

Do NOT trigger for:

• Reviewing an existing PR — use pr-review-expert instead
• Generating release notes — use changelog-generator instead

Prerequisites

• Branch has commits that diverge from the base branch (default: main or master)
• Git repository with accessible diff