Assess

This is a Japanese tax filing assessment system that walks users through determining their filing obligations for income tax, consumption tax, and resident tax. It's built around a conversational interview process that checks eligibility for different filing types, handles edge cases like stock trading in multiple account types, cryptocurrency gains, and housing loan deductions, then outputs structured markdown files so other skills can pick up where it left off. The prompts are extremely detailed, with specific instructions about multi-select questions when items aren't mutually exclusive and explicit checklists to prevent skipping items. It's designed for the Japanese tax system specifically, referencing actual tax codes and handling things like the 200,000 yen副業 threshold and invoice registration requirements. If you need to build a stateful multi-step interview system with handoffs, the progress file architecture here is worth studying.