Store ansible-admin credentials for a VM in context
AI agents use store-vm-credentials to create or update resources in Ansible — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ansible environment.
This tool writes sensitive credential data (ansible-admin credentials) into a context/store. It is a Write operation rather than Read, but the high severity comes from the fact that misuse could expose or misplace privileged credentials for VM administration.
From the tool's definition 'Store ansible-admin credentials for a VM in context'
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access store-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 store-vm-credentials:
{
"version": "1",
"default": "deny",
"tools": {
"store-vm-credentials": {
"limits": [
{
"counter": "store-vm-credentials_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}store-vm-credentials 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.
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Store ansible-admin credentials for a VM in context. It is categorised as a Write tool in the Ansible MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ansible MCP server in PolicyLayer and add a rule for store-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.
store-vm-credentials is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the store-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 store-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.
store-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.
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90 Ansible tools catalogued and risk-classified — across an index of 43,000+ MCP servers.