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An autonomy tier is a declared posture. An autonomy envelope is what enforces it. The Bound capability is a set of rules that decide, for each intended action, whether the agent may act now, may act with review to follow, must wait for a human, or must not act at all.

The four outcomes

Every action an agent is about to take is routed by its envelope to one of four outcomes, based on signals like the stakes involved, the model’s confidence, and how novel the situation is:
  • auto proceeds immediately.
  • async_review proceeds now, with a human reviewing after the fact.
  • sync_review parks the action until a human approves it.
  • block refuses the action outright.
You ask for the decision before the agent acts. Enforcement fails closed: if Sakshi is unreachable it raises rather than letting an ungoverned action through.

Formally verified before it governs

An envelope is a policy, and policies have bugs: a rule shadowed by an earlier one that can never fire, or an escalation that routes higher stakes to less oversight. Before an envelope is published, Sakshi checks it with the Z3 theorem prover for dead rules and for escalation monotonicity. This is a proof, not a test pass. Your autonomy policy is formally verified before it governs production. Every published envelope is versioned and chain-attested, so a change to how the agent is bounded is itself a governed, recorded event.

Circuit breakers

Envelopes govern individual actions. Circuit breakers watch the aggregate and fire the kill path when a pattern goes wrong: a rising human override_rate (the humans keep disagreeing with the agent), an eval_volume spike, or a model_change that drifts the model identity in effect away from the one under which the envelope was approved.
Circuit breakers halt automatically but release human-only. A machine can stop an agent; restarting it is a human decision with an attestation.

Bound autonomy

Publish an envelope, arm breakers, and lint it before it ships.

enforce() reference

Signals, the decision object, and the exception model.