List all VMs with stored credentials
AI agents call list-vm-credentials to retrieve information from Ansible without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read operation that queries and returns stored credential data. While the action itself is non-destructive and non-modifying, the sensitivity is elevated to 'medium' severity because exposing credentials—even just listing VMs that have them stored—creates a significant information disclosure risk if misused by an unauthorized agent.
From the tool's definition Tool name is 'list-vm-credentials' and description states it 'List all VMs with stored credentials'. The action is to list/retrieve information without modification.
Documented attack patterns abuse exactly the kind of access list-vm-credentials gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ansible, and nothing reaches the server without passing your rules. This is the rule we recommend for list-vm-credentials:
{
"version": "1",
"default": "deny",
"tools": {
"list-vm-credentials": {}
}
}list-vm-credentials is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
List all VMs with stored credentials. It is categorised as a Read tool in the Ansible MCP Server, which means it retrieves data without modifying state.
Register the Ansible MCP server in PolicyLayer and add a rule for list-vm-credentials: 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 Ansible. Nothing to install.
list-vm-credentials is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list-vm-credentials 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.
Set action: deny in the PolicyLayer policy for list-vm-credentials. 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.
list-vm-credentials is provided by the Ansible MCP server (washyu/ansible-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ansible, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
90 Ansible tools catalogued and risk-classified — across an index of 43,000+ MCP servers.