Anthropic models not calling tools in squads
# support
d
I’m experiencing a critical issue where Anthropic models within a Squad configuration are failing to call linked tools, including the default knowledge base query tool. The assistants are not retrieving info or executing functions despite correct configurations.
v
Thank you for sharing the issue. To help diagnose why Anthropic models in your Squad aren't calling tools, could you please confirm if your assistant's system prompt explicitly instructs the model to use each tool by its exact name (e.g.,
"use the 'knowledge-search' tool"
)? This is a common requirement for tool triggering, especially with Anthropic models. If possible, please check your system prompt and let me know if the tool names are referenced exactly as configured. This will help narrow down whether the issue is with prompt configuration or elsewhere. Sources: - [Tool and workflow debugging](https://docs.vapi.ai/debugging) - [Custom tools troubleshooting](https://docs.vapi.ai/tools/custom-tools-troubleshooting) - [Using the Query Tool for Knowledge Bases](https://docs.vapi.ai/knowledge-base/using-query-tool)
c
Hey drainwolf, Hope the above solution helped you in clarifying your issue.