We are returning a response for what the assistant should say, but then the assistant starts speaking, stops abruptyly, says the tool start message, and then runs the tool which is a horrible experience for the end user. Call IDs: - 019a2def-2e25-7ddc-8253-c8946f298e8f - 019a2dea-1839-744b-af37-35fe9624a1d8

Thank you for sharing the call IDs and describing the issue. To help diagnose why the assistant's voice is cutting out during tool calls, could you clarify whether you are using any custom hooks or message actions (such as idle messages or assistant hooks) that might interact with tool calls in your assistant's configuration? This will help pinpoint if a configuration conflict is causing the interruption. If possible, please specify if any recent changes were made to your assistant or tool setup. Sources: - [Vapi Assistant Hooks Documentation](https://docs.vapi.ai/assistants/assistant-hooks) - [Vapi Idle Messages Documentation](https://docs.vapi.ai/assistants/idle-messages)

Yes, we are using both assistnat hooks as well as tool start messages, the tool start message triggers, but interrupts the LLM output

Hi Noah Johnson, To address the issue of voice cut-off and incorrect responses, you can perform the following steps: 1. **Quick Diagnostics**: Use the [Vapi dashboard](https://dashboard.vapi.ai/) to test your voice agent and workflows immediately. This eliminates external variables and provides insights via real-time transcripts and tool execution results. 2. **Call Logs**: Check

Observe > Call Logs

in the dashboard to review call transcripts and identify where the call failed. This can help you understand if the issue occurred due to a specific tool or workflow logic. 3. **Model and Voice Configuration**: Ensure that: - You're using the appropriate language model (e.g.,

gpt-4o

) and the required tools are configured correctly. - Check the voice settings to ensure a smoother and more natural-sounding output. Switching to a different voice provider might help if the speech sounds robotic. 4. **Tool Execution**: Navigate to

Tools > [Select Tool] > Test

to send sample payloads and verify responses. Check for tool execution issues by reviewing API requests and responses under

Observe > API Logs

. 5. **Service Status**: Verify the status of AI service providers via their status pages to ensure there are no ongoing issues (e.g., [Vapi Status Page](https://status.vapi.ai/), [OpenAI Status](https://status.openai.com/)). 6. **Variable Extraction and Workflow Logic**: Be specific in variable descriptions and verify that workflow logic conditions are clear to prevent incorrect routing or missing data issues. For more detailed guidance, refer to [Debugging Voice Agents](https://docs.vapi.ai/debugging). If you experience specific errors, checking the error message against potential causes and solutions in the documentation might provide quick resolutions.