Agent tools can look similar at first. The real differences show up in control, state, logs, and day-to-day developer experience.
What to compare
Compare how each tool handles state, human review, tool connections, and tracing.
Also check whether it fits the kind of work you are actually building: research, operations, or production apps.
How to choose
If the workflow is simple, a lightweight tool may be enough. If it has approvals, retries, or long-running steps, you will need more control.
Try to map the first two workflows you plan to support before making the decision.
Pick the smallest tool that can still handle your real workflow.