Glossary

The words the product uses, one page each, with how each is measured or built.

• Mirror A mirror is a runnable twin of the backend an AI agent talks to, built from its production traces.
• Twin The twin is the running process that answers an agent's tool calls the way the recorded backend did.
• Trace conformance The headline fidelity number: the share of replayed conversations the twin answered as production did.
• Binding rung The rung is where a tool's answers come from: provided, custom, workspace, sink, world, synthesized, or simulated.
• Drift Drift is a tool whose answers moved away from what production recorded, named by kind and paired with the lever that fixes it.