Want to know ansible keyword

Sir if someone change the content of a copied file on a remote machine then if i copy it again it will change the content . What this feature of ansible is called?

Drift detection ?

Ansible does not have this feature, but specific modules do, for
example, the copy and template modules will show 'changed' if the file
had to be updated (not just content but permissions also), they will
also return 'diff' information (if requested, i.e --diff ).