[IzumiSy]

Motivation

PR creation conventions currently live in personal agent instructions. Package them as a focused, reusable create-pr skill so the workflow can be loaded when needed, while leaving the original instructions unchanged.

Summary

• Add a PR creation workflow that inspects the intended changes, avoids duplicate PRs, and defaults to Draft PRs through gh.
• Preserve the description structure: Motivation, optional Design Decision, and Summary, without unrequested boilerplate sections.
• Include publication authorization, branch safety, and client-identifying information safeguards.