Hey there!

Looks like PRs are not allowed, so I'm going to share this the old-school way: ramensoft@f580475

We need access to prepareStep to be able to control a little bit the loop (change model, trim messages, and whatnot). I think that fits pretty easily on the lifecycle.

Let me know what you think!

Docs:

• https://ai-sdk.dev/docs/agents/loop-control#prepare-step
• https://ai-sdk.dev/docs/ai-sdk-core/tools-and-tool-calling#preparestep-callback