verge_login · Verge MCP Server MCP: Risk & Policy

WHAT IT DOES

What verge_login does on Verge MCP Server

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

WHY IT NEEDS A POLICY

Why verge_login needs a policy

This tool performs authentication/login against VergeCMS using email and password. It creates a session/token (Write - creates an auth session with side effects). The server description mentions 'secure browser-based authentication and automatic token persistence', meaning it writes/persists authentication tokens. It doesn't read data, execute code, destroy data, or move money.

From the tool's definition メールアドレスとパスワードでVergeCMSにログインします（API認証）

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

verge_login Rate-limited

verge_login 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": {
    "verge_login": {
      "limits": [
        {
          "counter": "verge_login_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 Verge MCP Server, so you can run agents against it safely.

FAQ

Questions about verge_login

What does the verge_login tool do? +

メールアドレスとパスワードでVergeCMSにログインします（API認証）. It is categorised as a Write tool in the Verge 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 verge_login? +

Register the Verge MCP Server MCP server in PolicyLayer and add a rule for verge_login: 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 Verge MCP Server. Nothing to install.

What risk level is verge_login? +

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

Can I rate-limit verge_login? +

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

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

verge_login is provided by the Verge MCP Server MCP server (tomohirof/verge-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.