complete_microsoft_auth · Vibe MCP: Risk & Policy

WHAT IT DOES

What complete_microsoft_auth does on VibeMCP

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

WHY IT NEEDS A POLICY

Why complete_microsoft_auth needs a policy

An AI agent can call complete_microsoft_auth faster than any human can review — one bad instruction and it creates or modifies resources in VibeMCP by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

complete_microsoft_auth Rate-limited

complete_microsoft_auth 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": {
    "complete_microsoft_auth": {
      "limits": [
        {
          "counter": "complete_microsoft_auth_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 VibeMCP, so you can run agents against it safely.

FAQ

Questions about complete_microsoft_auth

What does the complete_microsoft_auth tool do? +

Complete Microsoft authentication after user has entered the device code. It is categorised as a Write tool in the VibeMCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on complete_microsoft_auth? +

Register the Vibe MCP server in PolicyLayer and add a rule for complete_microsoft_auth: 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 VibeMCP. Nothing to install.

What risk level is complete_microsoft_auth? +

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

Can I rate-limit complete_microsoft_auth? +

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

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

complete_microsoft_auth is provided by the Vibe MCP server (vibetensor/vibemcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.