Cross-platform service enumeration (systemctl or Get-Service).
AI agents call list_services to retrieve information from Systems Manager without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about system services (systemctl list-units, Get-Service output) with no side effects. It is a pure query operation for service discovery and status inspection. While knowledge of running services could inform further attacks, the tool itself performs no modifications, code execution, or destructive actions.
From the tool's definition Tool description states 'service enumeration' using 'systemctl or Get-Service', which are read-only commands that list/query running services without modifying state.
Attacks that exploit this kind of access
Cross-platform service enumeration (systemctl or Get-Service). It is categorised as a Read tool in the Systems Manager MCP Server, which means it retrieves data without modifying state.
Register the Systems Manager MCP server in PolicyLayer and add a rule for list_services: 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 Systems Manager. Nothing to install.
list_services 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_services 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_services. 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_services is provided by the Systems Manager MCP server (knuckles-team/systems-manager). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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