pbir_format_visual · Power BI Report MCP Server MCP

WHAT IT DOES

What pbir_format_visual does on Power BI Report MCP Server

AI agents use pbir_format_visual 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_format_visual needs a policy

This tool creates or modifies visual formatting properties in Power BI reports. The operations are reversible (formatting can be changed or undone), and the tool does not execute arbitrary code, delete data, or cause financial transactions. It fits the Write category as it modifies report artifacts.

From the tool's definition Tool name 'pbir_format_visual' and description indicating it 'Format visual properties' with modifications to title, background, border, padding, dropShadow, and visualHeader. These are reversible modifications to Power BI report visuals.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

pbir_format_visual Rate-limited

pbir_format_visual 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_format_visual": {
      "limits": [
        {
          "counter": "pbir_format_visual_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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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_format_visual

What does the pbir_format_visual tool do? +

Format visual properties. Auto-routes title/background/border/padding/dropShadow/visualHeader to container, others to visual; override with target=. 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_format_visual? +

Register the Power BI Report MCP Server MCP server in PolicyLayer and add a rule for pbir_format_visual: 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_format_visual? +

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

Can I rate-limit pbir_format_visual? +

Yes. Add a rate_limit block to the pbir_format_visual 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_format_visual completely? +

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

pbir_format_visual 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.