MacOS
If the size of the image is large, MCP server response processing fails with Maximum Call Stack Size Exceeded error.
If image size is smaller, there’s no error. This error isn’t returned by the MCP server it self, it’s what happens after the response from MCP server is processed on Cursor’s client end. I’ve confirmed it by making call to the MCP server directly and seeing a full & valid response.
Developer console log in Cursor does not show any errors.