delete_calculated_column

THE RISK

Critical Risk

Why delete_calculated_column needs a policy

The tool performs an irreversible deletion operation on calculated columns within a dataset. This is categorized as Destructive rather than Write because the action cannot be undone and results in permanent loss of column definitions and associated metadata.

From the tool's definition Tool name contains 'delete' and description states 'Delete one or more calculated columns from a dataset' — this is an irreversible removal of data structures.

Documented attack patterns abuse exactly the kind of access delete_calculated_column gives an agent:

POLICY

How to control delete_calculated_column

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 delete_calculated_column:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_calculated_column"
  ]
}

delete_calculated_column disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Superset — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Superset tools

Destructive delete_dataset Deletes a dataset from Superset. This is a permanent operation and cannot be undone. Be ca Destructive delete_dataset_metric Delete one or more metrics from a dataset Destructive remove_chart_from_dashboard Remove a chart from a dashboard and clean up its layout nodes. Execute execute_sql Execute SQL query using /api/v1/sqllab/execute/ endpoint Execute refresh_dataset_schema Refreshes a dataset Write set_chart_filters Set data filters for a chart. This permanently updates the chart Write find_and_replace_in_sql Performs a simple text find-and-replace on a virtual dataset Write add_chart_to_dashboard Add an existing chart to a dashboard and place it in the layout (position_json).

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Go deeper

Critical-risk tools in Superset → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about delete_calculated_column

What does the delete_calculated_column tool do? +

Delete one or more calculated columns from a dataset. It is categorised as a Destructive tool in the Superset MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_calculated_column? +

Register the Superset MCP server in PolicyLayer and add a rule for delete_calculated_column: 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.

What risk level is delete_calculated_column? +

delete_calculated_column is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_calculated_column? +

Yes. Add a rate_limit block to the delete_calculated_column 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.

How do I block delete_calculated_column completely? +

Set action: deny in the PolicyLayer policy for delete_calculated_column. 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.

What MCP server provides delete_calculated_column? +

delete_calculated_column 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.

Enforce policy on every Superset tool call.

Start from Superset, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →