Korean Spell Check

This wraps the Nara Korean spell checker (formerly PNU) so Claude can proofread Korean text using rule-based grammar and spacing checks instead of just AI intuition. It chunks long documents, hits the public web form conservatively with rate limiting, and returns corrections with reasons. Use it for final proofing on READMEs, emails, or Markdown docs where you want National Institute of Korean Language rules applied. The skill is explicit about usage limits: it's built for low-frequency personal checks, not batch processing or commercial backends, since the free tier is meant for students and individuals. Ships with a Python helper that handles chunking and parsing the HTML responses.