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I set up a 34-table demo store with one circular dependency in it, on purpose. Schemity's Context Map found ten. No table has a prefix, so nothing in the names says which module it belongs to. I asked Claude Code to group the tables by domain through the MCP server of Schemity, the desktop database design software I build. One request gave seven legends, and Sync from legends turned each into a context view. The Context Map then listed the cycles between those domains. All ten run through shipping. The one I planted was users and addresses. The other nine came from foreign keys I had written without thinking about modules, like stock_levels pointing at warehouses. https://schemity.com/blog/reverse-engineer-legacy-database-group-by-domain/…