Whetstone
Compare your current and candidate AI system on the same checks. Keep every gain and regression visible.
THE TOOLKIT / CHOOSE YOUR STARTING POINT
Evaluate a change. Check a contract. Authorize an action. Resolve a disagreement. Each tool has a specific job and a visible boundary.
6 tools
Compare your current and candidate AI system on the same checks. Keep every gain and regression visible.
Turn supported, typed obligations into Lean-checked proof receipts with explicit assumptions.
Bind formal, empirical, and runtime receipts to the same candidate. Fail closed when an authority is missing or vetoes the change.
Sign the permitted scope of an agent run. Check each consequential action and consume its authorization once.
Package and execute signed, scoped runtime capabilities, retaining the decision and execution record.
Compare records across independent systems, preserve source evidence, resolve exceptions, and resume a handoff exactly where it stopped.
HOW TO CHOOSE
You do not need to install the full chain to compare a baseline and candidate. Add formal proof, admission, authorization, or runtime controls when the release requires those guarantees.
Start with evaluation →