AI SDK @ai-sdk/workflow 2.0.95: experimental_transform removed from WorkflowAgent.stream() (November 5, 2026)

What changed

@ai-sdk/workflow 2.0.95, released November 5, 2026 as a patch, removes the experimental_transform option from WorkflowAgent.stream(). The StreamTextTransform type export is removed too. The release notes say stream transforms cannot run reliably across workflow step boundaries.

If your code passes experimental_transform to a durable WorkflowAgent, or imports StreamTextTransform from this package, it breaks on update even though the version number only went up by a patch.

Prerequisites

• A project using WorkflowAgent from @ai-sdk/workflow

Steps

1. Search your code for experimental_transform on WorkflowAgent.stream() calls and for imports of StreamTextTransform from @ai-sdk/workflow.
2. Remove the option. If you need to change the text, do it where you consume the stream, after it leaves the workflow.
3. If you are not ready, pin @ai-sdk/workflow below 2.0.95 in package.json.
4. Update: npm install @ai-sdk/workflow@latest.

Test it

Run your TypeScript build. It should compile with no errors about experimental_transform or StreamTextTransform. Then run one workflow end to end and check the streamed output still reaches your UI.

Not confirmed

The release notes do not name a replacement API for transforms inside a workflow.