gridstack_compact · GridStack MCP Server MCP: Risk & Policy

WHAT IT DOES

What gridstack_compact does on GridStack MCP Server

AI agents use gridstack_compact 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_compact needs a policy

This tool modifies the grid layout by compacting it (removing gaps, rearranging widget positions), which is a reversible change to the presentation state. It does not execute arbitrary code, delete data irreversibly, or cause financial impact. It aligns with Write category as it transforms existing layout configuration without destructive consequences.

From the tool's definition Tool name 'gridstack_compact' and description 'Compact the grid layout' indicate a layout reorganization operation that modifies the visual arrangement of widgets on a grid.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gridstack_compact Rate-limited

gridstack_compact 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_compact": {
      "limits": [
        {
          "counter": "gridstack_compact_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_compact

What does the gridstack_compact tool do? +

Compact the grid layout. 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_compact? +

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

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

Can I rate-limit gridstack_compact? +

Yes. Add a rate_limit block to the gridstack_compact 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_compact completely? +

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

gridstack_compact 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.