login_to_fpl · FPL MCP Server MCP: Risk & Policy

WHAT IT DOES

What login_to_fpl does on FPL MCP Server

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

WHY IT NEEDS A POLICY

Why login_to_fpl needs a policy

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

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

login_to_fpl Rate-limited

login_to_fpl 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": {
    "login_to_fpl": {
      "limits": [
        {
          "counter": "login_to_fpl_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 FPL MCP Server, so you can run agents against it safely.

FAQ

Questions about login_to_fpl

What does the login_to_fpl tool do? +

Step 1: Generates a secure login link. It is categorised as a Write tool in the FPL 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 login_to_fpl? +

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

What risk level is login_to_fpl? +

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

Can I rate-limit login_to_fpl? +

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

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

login_to_fpl is provided by the FPL MCP Server MCP server (lewis-king/fpl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.