TEPA keeps agent memory at 95% through reversals

TEPA kept agent accuracy at 95% through controlled fact reversals, while append-only and last-write-wins memories fell to 21% and no memory reached 30.9% across 50 seeds. The new preprint’s revocable evidence store invalidates superseded facts without deleting their audit history, and repeated the 95% result in a file-backed execution test. For builders already rationing context as an operating cost rather than an infinite resource, the result says memory needs an explicit revoke operation—not merely better retrieval—before an agent can safely learn from changing environments.