gridstack_update_widget · GridStack MCP Server MCP

WHAT IT DOES

What gridstack_update_widget does on GridStack MCP Server

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

WHY IT NEEDS A POLICY

Why gridstack_update_widget needs a policy

This tool creates or modifies data reversibly by updating widget properties in GridStack layouts. It falls into the Write category because it changes widget state (position, size, configuration, etc.) without permanently destroying data. Severity is medium because misuse could corrupt dashboard layouts or user configurations, but changes are reversible (widgets can be repositioned or reconfigured again).

From the tool's definition Tool name contains 'update' and description states 'Update widget properties'. The gridstack_update_widget function modifies existing widget configuration within a dashboard layout system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gridstack_update_widget Rate-limited

gridstack_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": {
    "gridstack_update_widget": {
      "limits": [
        {
          "counter": "gridstack_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 GridStack MCP Server, so you can run agents against it safely.

FAQ

Questions about gridstack_update_widget

What does the gridstack_update_widget tool do? +

Update widget properties. It is categorised as a Write tool in the GridStack 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 gridstack_update_widget? +

Register the GridStack MCP Server MCP server in PolicyLayer and add a rule for gridstack_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 GridStack MCP Server. Nothing to install.

What risk level is gridstack_update_widget? +

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

Can I rate-limit gridstack_update_widget? +

Yes. Add a rate_limit block to the gridstack_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 gridstack_update_widget completely? +

Set action: deny in the PolicyLayer policy for gridstack_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 gridstack_update_widget? +

gridstack_update_widget is provided by the GridStack MCP Server MCP server (raghavsharma-simpplr/gridstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.