Wiki · Reference entry
Action window
How many actions a system may take before its evidence has to be renewed.
Permission is not a balance that accumulates. Every autonomous action spends down the evidence that justified it, because conditions move and the world does not stay the shape it was tested in. An action window makes that explicit: this much autonomy, for this long, on this evidence, then check again.
Why it matters
It replaces a signature with something that expires.