aap_update_credential · AAP MCP Server MCP: Risk & Policy

WHAT IT DOES

What aap_update_credential does on AAP MCP Server

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

WHY IT NEEDS A POLICY

Why aap_update_credential needs a policy

This tool modifies credential objects within Ansible Automation Platform. While credentials are sensitive (they may contain secrets like passwords, API keys, or authentication tokens), the operation is reversible—credentials can be updated again or restored. This makes it Write rather than Destructive.

From the tool's definition Tool name 'aap_update_credential' and description 'Update an existing AAP credential (PATCH)' indicate modification of existing data via PATCH HTTP method, which is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

aap_update_credential Rate-limited

aap_update_credential 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": {
    "aap_update_credential": {
      "limits": [
        {
          "counter": "aap_update_credential_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 AAP MCP Server, so you can run agents against it safely.

FAQ

Questions about aap_update_credential

What does the aap_update_credential tool do? +

Update an existing AAP credential (PATCH). It is categorised as a Write tool in the AAP 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 aap_update_credential? +

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

What risk level is aap_update_credential? +

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

Can I rate-limit aap_update_credential? +

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

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

aap_update_credential is provided by the AAP MCP Server MCP server (srinivassrinu842/aap-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.