gridstack_add_grid · GridStack MCP Server MCP: Risk & Policy

WHAT IT DOES

What gridstack_add_grid does on GridStack MCP Server

AI agents use gridstack_add_grid 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_add_grid needs a policy

This tool creates a new grid object/component which modifies the layout state reversibly. It does not execute arbitrary code, delete data, move money, or perform destructive operations. Creation and initialization of UI components falls under Write category. Severity is low because misuse affects only the local dashboard layout and is easily undoable.

From the tool's definition Tool name 'gridstack_add_grid' and description 'Create a new grid' indicate data creation. The tool creates a new grid configuration with options and children, modifying the dashboard layout state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gridstack_add_grid Rate-limited

gridstack_add_grid 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_add_grid": {
      "limits": [
        {
          "counter": "gridstack_add_grid_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_add_grid

What does the gridstack_add_grid tool do? +

Create a new grid with options and children (static method). 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_add_grid? +

Register the GridStack MCP Server MCP server in PolicyLayer and add a rule for gridstack_add_grid: 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_add_grid? +

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

Can I rate-limit gridstack_add_grid? +

Yes. Add a rate_limit block to the gridstack_add_grid 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_add_grid completely? +

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

gridstack_add_grid 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.