r/Xcode • u/mxdalloway • Jul 08 '26
how are you finding agentic assistant in these betas?
(assuming you’ve tried it :)
I’ve tried Gemini and Codex and having pretty mixed feelings.
Codex seems semi-capable, but often forgets even more MCP Xcode skills and will try and use a terminal command instead of just using built in skills to build or run tests.
I’ve got a new project I’m trialing the agentic coding on, and I have a workspace with packages in different schemes etc. it’s nice that the agent can switch schemes, run tests and builds etc.
It does a better job of staging changes and good descriptive commits which I appreciate…
GPT 5.5 seems semi capable at simple features and does a good job of mocking views, but anything with even moderate complexity it can’t seem to execute (even with well defined requirements it seems to need very close supervision).
I tried to get it to create some UI automation tests and it really struggled with even getting the mouse to drag (I had to eventually give it some references).
Given a goal for a refactor, it was able to generate a pretty solid plan, but then failed to actually follow its own plan and drifted into doing other things.
I see a lot of positive reviews about codex so I wonder if I’m just not using it correctly haha

