supabase-common-errors

Diagnose and fix Supabase errors across PostgREST, PostgreSQL, Auth, Storage, and Realtime. Use when encountering error codes like PGRST301, 42501, 23505, or auth failures. Use when debugging failed queries, RLS policy violations, or HTTP 4xx/5xx responses. Trigger with "supabase error", "fix supabase", "PGRST", "supabase 403", "RLS not working", "supabase auth error", "unique constraint", "foreign key violation".