If I use the Claude Code agent within Xcode 27 beta 2, it defaults to Opus 4.8, but that burns through tokens too quickly so I'd like to switch it to Opus 4.7 or Sonnet, but there's no way to change that anywhere in Xcode that I can see?
Also, if I use Chat, rather than the agent, then Xcode lets you select models, however for Claude it only offers Sonnet 4.5. Why? Why not 4.6 at least?
Where are these limitations coming from? It's not from Claude so it must be Xcode Why are these limitations present?
