Add an existing chart to a dashboard and place it in the layout (position_json).
AI agents use add_chart_to_dashboard to create or update resources in Superset — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Superset environment.
This tool performs a reversible modification operation—adding a chart to a dashboard and setting its layout position. It does not execute code, delete data, or move money. While it modifies dashboard state, the operation can be undone (chart can be removed, layout adjusted), classifying it as Write rather than Destructive.
From the tool's definition Tool description states 'Add an existing chart to a dashboard and place it in the layout', which creates or modifies dashboard configuration by adding a chart and positioning it.
Documented attack patterns abuse exactly the kind of access add_chart_to_dashboard gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Superset, and nothing reaches the server without passing your rules. This is the rule we recommend for add_chart_to_dashboard:
{
"version": "1",
"default": "deny",
"tools": {
"add_chart_to_dashboard": {
"limits": [
{
"counter": "add_chart_to_dashboard_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_chart_to_dashboard stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Add an existing chart to a dashboard and place it in the layout (position_json). It is categorised as a Write tool in the Superset MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Superset MCP server in PolicyLayer and add a rule for add_chart_to_dashboard: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Superset. Nothing to install.
add_chart_to_dashboard is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the add_chart_to_dashboard rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for add_chart_to_dashboard. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
add_chart_to_dashboard is provided by the Superset MCP server (winding2020/superset-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Superset, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
31 Superset tools catalogued and risk-classified — across an index of 43,000+ MCP servers.