The fastest way to lose customer trust is to give a confident answer that turns out to be wrong. An invented phone number. A fabricated policy. A price the agent guessed. A waiver the agent confirmed because the caller asked nicely. Coval tests whether your agent stays grounded, and what it does when it doesn't know.
Get StartedWe score each transcript against the grounding rules for your context.
We also run adversarial scenarios: callers who push back hard on correct answers, ask the same question multiple ways to see if the agent stays consistent, or apply social pressure to extract a fee waiver or policy exception. And if you give us a fact your agent must always get right, we'll test that it knows it, and that it doesn't invent something different when asked an adjacent question.
Tell Coval what your agent is supposed to know and what’s outside its scope. We probe both edges: questions inside its scope to check accuracy, and questions outside it to check whether it admits uncertainty.
You can run this with zero customer data on day one, then add knowledge base facts or FAQ pairs to deepen the test as you go.
Make sure your agent confirms who it’s talking to before it shares information or takes action.
Learn more →Test how your agent gathers the details it needs without missing a field or asking twice.
Learn more →Catch errors before they become refunds, wrong transfers, or actions taken on bad data.
Learn more →Test the moments your agent should smoothly hand off and when it shouldn’t.
Learn more →See how your agent holds up under pressure, interruptions, slow talkers, and angry callers.
Learn more →Test what happens when callers go off-script, probe its identity, or try to break character.
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