pbir_layout_grid · Power BI Report MCP Server MCP

WHAT IT DOES

What pbir_layout_grid does on Power BI Report MCP Server

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

WHY IT NEEDS A POLICY

Why pbir_layout_grid needs a policy

The tool creates or modifies the layout structure of a Power BI report page—a reversible change. While it affects report design, it does not delete data (Destructive), execute arbitrary code (Execute), move money (Financial), or merely read data (Read). The Write category is most appropriate.

From the tool's definition Tool description states it 'writes in one call' when planOnly:false, and is used for 'building a page from scratch' by computing and applying a grid layout to Power BI report pages (PBIR format).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pbir_layout_grid Rate-limited

pbir_layout_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": {
    "pbir_layout_grid": {
      "limits": [
        {
          "counter": "pbir_layout_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 Power BI Report MCP Server, so you can run agents against it safely.

FAQ

Questions about pbir_layout_grid

What does the pbir_layout_grid tool do? +

Compute a deterministic rows×cols grid; server owns margin/gap/remainder math. Use this INSTEAD of N pbir_add_visual calls when building a page from scratch. planOnly:true (default) returns the plan; planOnly:false validates bindings+layout then writes in one call. See guide(. It is categorised as a Write tool in the Power BI Report 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 pbir_layout_grid? +

Register the Power BI Report MCP Server MCP server in PolicyLayer and add a rule for pbir_layout_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 Power BI Report MCP Server. Nothing to install.

What risk level is pbir_layout_grid? +

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

Can I rate-limit pbir_layout_grid? +

Yes. Add a rate_limit block to the pbir_layout_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 pbir_layout_grid completely? +

Set action: deny in the PolicyLayer policy for pbir_layout_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 pbir_layout_grid? +

pbir_layout_grid is provided by the Power BI Report MCP Server MCP server (jonathan-pap/powerbi-report-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.