Which module anti-patterns should you avoid?

Embedding provider blocks inside the module which makes reuse across accounts harder.

Accepting overly generic map(any) inputs that hide required structure instead of typed objects.

Outputting secrets or credentials without sensitive = true or secret stores.

Creating "god" root modules that mix networking, compute, and application concerns instead of composing smaller modules.

Copying and pasting modules without versioning, documentation, or automated tests.