suno_login · Suno- MCP: Risk & Policy

WHAT IT DOES

What suno_login does on Suno-MCP

AI agents invoke suno_login to trigger actions in Suno-MCP. 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 suno_login needs a policy

This tool performs browser automation (via Playwright) to authenticate with an external service via Google OAuth and persists a session. It triggers external operations (OAuth flow, session storage) whose effects depend on supplied credentials.

From the tool's definition Login to Suno AI via Google OAuth. Saves session for future use.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

suno_login Rate-limited

suno_login 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": {
    "suno_login": {
      "limits": [
        {
          "counter": "suno_login_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 Suno-MCP, so you can run agents against it safely.

FAQ

Questions about suno_login

What does the suno_login tool do? +

Login to Suno AI via Google OAuth. Saves session for future use. It is categorised as a Execute tool in the Suno-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on suno_login? +

Register the Suno- MCP server in PolicyLayer and add a rule for suno_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 Suno-MCP. Nothing to install.

What risk level is suno_login? +

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

Can I rate-limit suno_login? +

Yes. Add a rate_limit block to the suno_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 suno_login completely? +

Set action: deny in the PolicyLayer policy for suno_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 suno_login? +

suno_login is provided by the Suno- MCP server (merozemory/suno-multi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.