Manages furusato nozei (Japan's hometown tax donation system) by reading receipt images, tracking donations across municipalities, and calculating deduction limits. It delegates the actual OCR work to a separate reading-receipt skill with dual verification, cross-checks the results, then stores everything in a SQLite database. The skill walks you through registering multiple donations, warns you if you've exceeded your deduction cap, and crucially reminds you that One-Stop Special provisions get invalidated if you're filing a full tax return for side income. Built as part of a larger tax filing workflow where it hands off deduction data to downstream income tax calculations. Most useful if you're juggling several donation receipts and want to avoid manual spreadsheet work.
npx skills add https://github.com/kazukinagata/shinkoku --skill furusato