AI agents call get_lab_topology to retrieve information from EVE-NG MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries lab topology data from the EVE-NG platform without creating, modifying, deleting, or executing anything. It has no irreversible effects and produces no financial impact. Read operations on network topology information present minimal risk even if misused, as they only expose existing configuration data.
From the tool's definition Tool name 'get_lab_topology' and description 'Get lab topology information' indicate a retrieval operation with no modification or side effects. The verb 'get' is a classic read operation.
Documented attack patterns abuse exactly the kind of access get_lab_topology gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and EVE-NG MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_lab_topology:
{
"version": "1",
"default": "deny",
"tools": {
"get_lab_topology": {}
}
}get_lab_topology is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get lab topology information. It is categorised as a Read tool in the EVE-NG MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EVE-NG MCP Server MCP server in PolicyLayer and add a rule for get_lab_topology: 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 EVE-NG MCP Server. Nothing to install.
get_lab_topology 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 get_lab_topology 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 get_lab_topology. 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.
get_lab_topology is provided by the EVE-NG MCP Server MCP server (moimran/eveng-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from EVE-NG MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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26 EVE-NG MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.