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Conductor is Retell’s AI copilot in the dashboard. It can write simulation test cases for you, so you build a regression suite from real calls and plain-language prompts instead of authoring every case from a blank slate. Open the Conductor panel on the agent you want to test, then ask. It drafts the cases into that agent’s Test Cases tab, where you can review, edit, and run them like any other test case. Conductor can also work the suite, not just write it. Ask it to run a batch and it starts one, waits for the results, and reports the pass rate and each failure back in the panel. It can read a run’s full transcript, update a case, and delete cases you no longer want.
Conductor authors test cases for single-prompt, multi-prompt, and Conversation Flow agents.

Generating simulation test cases with Conductor.

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Generate test cases from real calls

Point Conductor at calls that already happened and have it turn them into test cases. This is the fastest way to build a regression suite: every real failure becomes a case that guards against the same problem returning. To point Conductor at a specific call, give it the call’s call ID from your Call History or AI QA, or describe the calls you mean:
Conductor reads the transcript and tool history from those calls and drafts matching test cases with a persona and success criteria. It can also set the dynamic variables and function mocks, so you don’t have to add them by hand.

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Start a suite from scratch

On a brand-new agent with no call history, ask Conductor for a starter suite so you have coverage before the first real call:
Conductor drafts the cases scoped to the current agent. Review them, then add any dynamic variables or mocks the scenarios need.

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Target tool calls and functions

To test how your agent handles a specific tool result, ask Conductor to write a case that mocks the function and checks the agent’s response:
Conductor writes the case with the function mock and a success criterion, so you can confirm the behavior without calling the real function.
A tool call that matches no mock falls through to the real tool. Conductor can read your agent’s tool definitions, but it won’t necessarily mock every one it should, so review each generated case and add a mock for any function that reaches a live endpoint before you run it.

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Next steps