generateServiceCredential · My Credentials MCP Server MCP

WHAT IT DOES

What generateServiceCredential does on My Credentials MCP Server

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

WHY IT NEEDS A POLICY

Why generateServiceCredential needs a policy

This tool creates new credentials, which is a Write operation (irreversible creation of authentication material). Severity is high because compromised or misused credential generation could enable unauthorized access to AWS, GitHub, databases, and other services.

From the tool's definition Tool name indicates credential generation; description states it 'Generate[s] service-specific credentials (AWS, GitHub tokens, database passwords)'.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generateServiceCredential Rate-limited

generateServiceCredential 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": {
    "generateServiceCredential": {
      "limits": [
        {
          "counter": "generateservicecredential_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 My Credentials MCP Server, so you can run agents against it safely.

FAQ

Questions about generateServiceCredential

What does the generateServiceCredential tool do? +

Generate service-specific credentials (AWS, GitHub tokens, database passwords) following platform conventions. It is categorised as a Write tool in the My Credentials 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 generateServiceCredential? +

Register the My Credentials MCP Server MCP server in PolicyLayer and add a rule for generateServiceCredential: 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 My Credentials MCP Server. Nothing to install.

What risk level is generateServiceCredential? +

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

Can I rate-limit generateServiceCredential? +

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

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

generateServiceCredential is provided by the My Credentials MCP Server MCP server (preangelleo/my-credentials-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.