create_widget · Redash MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_widget does on Redash MCP Server

AI agents use create_widget to create or update resources in Redash MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Redash MCP Server environment.

WHY IT NEEDS A POLICY

Why create_widget needs a policy

Creating a widget modifies dashboard configuration by adding a new UI element. This is a Write operation because it creates new data structures (widgets) that can be subsequently modified or deleted. Severity is medium because misuse could clutter dashboards or add misleading visualizations, but the action is reversible via delete_widget and does not cause data loss or financial impact.

From the tool's definition Tool name is 'create_widget' and description states 'Create a new widget in a dashboard', which is a reversible creation/modification action on dashboard state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_widget Rate-limited

create_widget 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_widget": {
      "limits": [
        {
          "counter": "create_widget_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Redash MCP Server, so you can run agents against it safely.

FAQ

Questions about create_widget

What does the create_widget tool do? +

Create a new widget in a dashboard (text or visualization widget). It is categorised as a Write tool in the Redash MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_widget? +

Register the Redash MCP Server MCP server in PolicyLayer and add a rule for create_widget: 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 Redash MCP Server. Nothing to install.

What risk level is create_widget? +

create_widget is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_widget? +

Yes. Add a rate_limit block to the create_widget 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 create_widget completely? +

Set action: deny in the PolicyLayer policy for create_widget. 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 create_widget? +

create_widget is provided by the Redash MCP Server MCP server (jagadeesh52423/redash-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.