Rohan Paul
@rohanpaul_ai
The paper shows that refreshing an agent's memory does not refresh its plan, so the plan should be checked again before execution.
One agent can update a requirement, and the executor may see that update while still holding a plan built from the older version.
That happened in all 30 live workflows with a freshness-only setup: the agent saw the new record but still issued the obsolete action.
PLANFENCE fixes this by tying each plan to the exact records it used and checking only the records that matter to the next tool call. If something changed, the agent replans once; if it still cannot verify the plan, it blocks the action.
That avoided every invalid primary action in the 30 workflows.
At low update rates, proactive sync was faster. As updates increased, PLANFENCE had lower stall, and it also avoided checking unrelated shared state.
So, do not treat fresh memory as proof that an agent's plan is still valid.
– arxiv. org/abs/2609.03340
Title: "Fresh Memory, Stale Plans: Dependency-Scoped Validation for Distributed LLM-Agent Memory"