AI agents call list_macpool_blocks to retrieve information from Intersight 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 displays existing MAC pool block configurations from the Intersight infrastructure management system. Listing/reading data is a non-destructive operation with minimal blast radius. An LLM misusing this tool would only expose infrastructure configuration data, not cause infrastructure damage or financial impact.
From the tool's definition Tool name 'list_macpool_blocks' and description 'List all MAC pool blocks' clearly indicate a retrieval/query operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access list_macpool_blocks gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Intersight MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_macpool_blocks:
{
"version": "1",
"default": "deny",
"tools": {
"list_macpool_blocks": {}
}
}list_macpool_blocks is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all MAC pool blocks. It is categorised as a Read tool in the Intersight MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Intersight MCP Server MCP server in PolicyLayer and add a rule for list_macpool_blocks: 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 Intersight MCP Server. Nothing to install.
list_macpool_blocks 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_macpool_blocks 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_macpool_blocks. 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_macpool_blocks is provided by the Intersight MCP Server MCP server (jim-coyne/intersight_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Intersight 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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198 Intersight MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.