iam_create_service_account · Mimi Seed MCP: Risk & Policy

WHAT IT DOES

What iam_create_service_account does on Mimi Seed

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

WHY IT NEEDS A POLICY

Why iam_create_service_account needs a policy

This tool creates new service accounts in Google Cloud/Firebase IAM, which is a reversible modification operation. While not immediately destructive, service account creation can grant elevated permissions and access to sensitive resources, making it a Write-category risk with high severity due to potential blast radius if an AI agent creates accounts with excessive permissions or for unauthorized use.

From the tool's definition Tool description indicates 'Create new service account' (translated from Korean: '새 서비스 계정 생성'). Service account creation is a write operation that modifies IAM configuration by adding new credentials and permissions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

iam_create_service_account Rate-limited

iam_create_service_account 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": {
    "iam_create_service_account": {
      "limits": [
        {
          "counter": "iam_create_service_account_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 Mimi Seed, so you can run agents against it safely.

FAQ

Questions about iam_create_service_account

What does the iam_create_service_account tool do? +

새 서비스 계정 생성. accountId는 이메일의 로컬 파트 (예:. It is categorised as a Write tool in the Mimi Seed MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on iam_create_service_account? +

Register the Mimi Seed MCP server in PolicyLayer and add a rule for iam_create_service_account: 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 Mimi Seed. Nothing to install.

What risk level is iam_create_service_account? +

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

Can I rate-limit iam_create_service_account? +

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

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

iam_create_service_account is provided by the Mimi Seed MCP server (@yoonion/mimi-seed-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.