Get detailed information about a specific node.
AI agents call gns3_get_node to retrieve information from GNS3 Network Simulator 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 information about a node in a GNS3 network simulation. It performs no modifications, deletions, or external operations—purely a read operation. The blast radius of misuse is minimal; an AI agent could only gain visibility into node configuration and state, with no ability to alter the network topology or trigger destructive actions.
From the tool's definition Tool name 'gns3_get_node' and description 'Get detailed information about a specific node' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access gns3_get_node gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and GNS3 Network Simulator MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for gns3_get_node:
{
"version": "1",
"default": "deny",
"tools": {
"gns3_get_node": {}
}
}gns3_get_node 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.
Get detailed information about a specific node. It is categorised as a Read tool in the GNS3 Network Simulator MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GNS3 Network Simulator MCP Server MCP server in PolicyLayer and add a rule for gns3_get_node: 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 GNS3 Network Simulator MCP Server. Nothing to install.
gns3_get_node 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 gns3_get_node 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 gns3_get_node. 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.
gns3_get_node is provided by the GNS3 Network Simulator MCP Server MCP server (wael-rd/gns3-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from GNS3 Network Simulator MCP Server, 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.
42 GNS3 Network Simulator MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.