generate_svg_measure · Power BI MCP Server MCP

WHAT IT DOES

What generate_svg_measure does on Power BI MCP Server

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

WHY IT NEEDS A POLICY

Why generate_svg_measure needs a policy

This tool creates/generates a new DAX measure in the Power BI model, which is a Write operation (creating or modifying data reversibly). It produces a measure definition that is added to the dataset. The severity is medium because misuse could introduce incorrect or malicious DAX expressions into the model, but the action is reversible by deleting or modifying the measure.

From the tool's definition Generate a ready-to-use DAX measure that returns an inline SVG micro-visual... Set the measure

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_svg_measure Rate-limited

generate_svg_measure 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": {
    "generate_svg_measure": {
      "limits": [
        {
          "counter": "generate_svg_measure_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 MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_svg_measure

What does the generate_svg_measure tool do? +

Generate a ready-to-use DAX measure that returns an inline SVG micro-visual (progress bar, bullet chart, status pill, or sparkline) as a data:image/svg+xml URI. Set the measure. It is categorised as a Write tool in the Power BI 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 generate_svg_measure? +

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

What risk level is generate_svg_measure? +

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

Can I rate-limit generate_svg_measure? +

Yes. Add a rate_limit block to the generate_svg_measure 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 generate_svg_measure completely? +

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

generate_svg_measure is provided by the Power BI MCP Server MCP server (sulaiman013/powerbi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.