update_widget · Redash MCP Server MCP: Risk & Policy

WHAT IT DOES

What update_widget does on Redash MCP Server

AI agents use update_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 update_widget needs a policy

The tool modifies dashboard widget configuration or properties without deleting data or executing code. This is a Write operation because updates are reversible and do not have permanent side effects.

From the tool's definition Tool description states 'Update an existing widget in a dashboard' — a modification operation that changes existing dashboard content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_widget Rate-limited

update_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": {
    "update_widget": {
      "limits": [
        {
          "counter": "update_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 update_widget

What does the update_widget tool do? +

Update an existing widget in a dashboard. 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 update_widget? +

Register the Redash MCP Server MCP server in PolicyLayer and add a rule for update_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 update_widget? +

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

Can I rate-limit update_widget? +

Yes. Add a rate_limit block to the update_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 update_widget completely? +

Set action: deny in the PolicyLayer policy for update_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 update_widget? +

update_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.