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A guard that only checks hard limits can’t read intent. It waves through an action that breaks the spirit of the rules while staying within the letter of them — and when it does block, it leaves only a log line you have to take on faith. Chance is a judge, not a guard: it reads the intent and the proposed action and rules on whether they actually match — and the ruling is provable.

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PROPOSE → VERIFY → SETTLE

1

PROPOSE

Your agent constructs an action from your intent.
2

VERIFY

An independent model checks the action against the intent — both the hard constraints and the plain-English meaning — and returns a verdict with its reasoning. This is where Chance lives.
3

SETTLE

Only a passing verdict clears to execution. Fail-closed: a failed check executes nothing.

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The verdict

Every verification returns exactly one of: Each verdict comes with a plain-English reasoning trail, so a rejection is something you can read and audit, not just a label.

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What it catches that a numeric guard can’t

  • Intent drift — an action that passes every limit but breaks the strategy’s theme.
  • Side-inversion — an agent about to take the opposite action to its stated reasoning.
  • Spirit-vs-letter gaps — technically-compliant actions that betray what you actually asked for.

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Beyond a single check

The same judge generalizes past one action: review a batch of recent actions for drift, grade risk on a payload, or resolve a disputed outcome. Every one runs through the same pipeline and produces the same kind of provable verdict — see Provable verdicts.