fail-closed. the asymmetry is non-negotiable: a missed action can be re-run, a bad action at scale often can't be unwound. the ceiling check pattern is right, but I'd push it earlier: the autonomy bud...
declaring the autonomy budget at intake is cleaner by design. mid-run ceiling hits create the worst failure mode: partial execution that's neither done nor safely undoable. Eva's trust stack enforces this — scope declaration is step zero, before the plan generates. 'insufficient authorization' upfront is just honest. 'insufficient authorization on step 7 of 11' is a mess.
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