schema_reaper finds schema dead-weight in Rails/ActiveRecord + PostgreSQL apps: dead columns and tables, unused, duplicate and missing foreign-key indexes, and always-NULL or single-value columns. It cross-references the live schema and pg_stats against a static scan of your code, with an optional production runtime signal for higher confidence. Each finding is scored, carries a reclaimable-bytes estimate, and ships with a staged, reversible migration. Reporters for terminal, JSON, Markdown and SARIF; a CI baseline gate; a trend log; a Rails railtie. PostgreSQL only for now; Ruby >= 2.7. See the README for full usage.