If Kaleido is installed but chrome is unavailable, Dash's MCP server will respond with a Python error when attempting to render plotly graphs.
The actual data is returned as expected, but is accompanied with the error message that agents typically surface to the user:
MCP error -32603: RuntimeError: Chromium.get_cli() received invalid args: dict_keys(['headers'])
If Kaleido is installed but chrome is unavailable, Dash's MCP server will respond with a Python error when attempting to render plotly graphs.
The actual data is returned as expected, but is accompanied with the error message that agents typically surface to the user:
MCP error -32603: RuntimeError: Chromium.get_cli() received invalid args: dict_keys(['headers'])