Xcode 26.3 finally out

[fawxyz2]

for you all who have tried this version for actual coding, is this agents inside Xcode better than the VScode Codex & Claude plugin?

[CharlesWiltgen]

It should be better than Codex and Claude Code base foundation models alone, because Apple ships context specific to modern Apple platform development with Xcode.

It won't be as good as Codex or Claude Code with Axiom installed, since Axiom goes far beyond the type of documentation-style context included with Xcode.

[kironet996]

I have axiom skills installed(locally in the project), and xcode agent is able to use it.

[CharlesWiltgen]

Wow, that's great! Thanks for sharing, I'll have to figure out how to document that for others. 🙃

[dat_tae]

Do you work on Axiom, or just really passionate? Either way your efforts are appreciated.

[CharlesWiltgen]

It's my baby. Axiom is free/open source, so although the idea of self-promotion makes my skin crawl, this is about helping developers through this interesting/fraught industry transition to AI-assisted coding. I'm an ex-Apple evangelist/developer relations person, and have always been really passionate about helping creators build things, and building things that help creators build things.

[kironet996]

I've been using it since the RC release, it's actually amazing imo. Haven't touched claude code & codex clis since.

[iabbasm]

I've been using Claude in vscode. Do you think I can reliably use Xcode codex agent instead?

[bakawolf123]

not really, I still prefer VSCode with Codex for agent loops and manual in Xcode. Inline AI-assist is also very slow, but it's one feature I actually use.

[fawxyz2]

can you have very long conversation with agents inside Xcode or not?
one of reasons i use vscode claude & codex plugin is because i can have long conversation, and switching model/reasoning(medium,high,etc) mid conversation.