powerbi_auth_start · Power BI MCP for Claude MCP

WHAT IT DOES

What powerbi_auth_start does on Power BI MCP for Claude

AI agents invoke powerbi_auth_start to trigger actions in Power BI MCP for Claude. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why powerbi_auth_start needs a policy

powerbi_auth_start triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

powerbi_auth_start Rate-limited

powerbi_auth_start stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "powerbi_auth_start": {
      "limits": [
        {
          "counter": "powerbi_auth_start_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 for Claude, so you can run agents against it safely.

FAQ

Questions about powerbi_auth_start

What does the powerbi_auth_start tool do? +

Start Microsoft device-code sign-in for Power BI. Returns the Microsoft URL and code to show the user in chat. It is categorised as a Execute tool in the Power BI MCP for Claude MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on powerbi_auth_start? +

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

What risk level is powerbi_auth_start? +

powerbi_auth_start is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit powerbi_auth_start? +

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

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

powerbi_auth_start is provided by the Power BI MCP for Claude MCP server (robertoamoreno/powerbi-mcp-claude). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.