Hey, thanks for the report. “Tool call error” messages can appear for a few different reasons, so let’s go through some steps to narrow it down.
First, try these quick checks:
- Create a new chat and see if the error still occurs there (this can help if the state of a specific chat is corrupted)
- Check if you have any MCP servers configured in Settings → Cursor Settings → Tools & MCP, and if so, try temporarily disabling them
- Run network diagnostics: Cursor Settings → Network → Run Diagnostics
If the issue persists, please share:
- Request ID: chat menu (top right) → Copy Request ID
- A screenshot of the exact error message
- Whether you have any MCP servers configured
- The results from the network diagnostics
- Which mode you’re using when this happens?
This will help us understand whether this is a new bug or a configuration issue. Let me know what you’re able to collect.