The sequence matters more than the tool. Ask the agent to describe what is already there. Check its answer against the plugin itself. If the description is wrong, stop. Nothing written after that will be right.
Once the description matches, make one small change. Not a batch. One. Then open the plugin and look at the result with your own eyes.
A tool result that says success means the call returned. It does not mean the page is correct. Caches, templates, notifications and front-end styles are all outside what the call can see. WPML stores language in its own table, so content created without it in mind has no language until one is assigned. The module writes only through WPML's published hooks, does not generate translations, and cannot write string translations because WPML publishes no hook for one. Language and group writes require confirmation.
Do the first few sessions on staging. Use a WordPress user created for this connection. Keep the safety profile tight until you have watched a full session in the change ledger. None of that takes long, and it is the difference between a workflow you trust and one you hope about.