View Cortex MCP tool usage analytics: success rates, latency, token estimates, and trends. Use to measure Cortex effectiveness and identify flaky tools. Available to all team members.
AI agents call cortex_tool_stats to retrieve information from Cortex Hub 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 usage statistics and performance metrics—purely observational data collection with no side effects. It does not create, modify, delete, execute code, or move resources. The blast radius of misuse is minimal; an agent could only gather information about tool performance, which presents no operational risk.
From the tool's definition Tool description states 'View Cortex MCP tool usage analytics: success rates, latency, token estimates, and trends.' The verbs 'view' and 'measure' indicate read-only retrieval of historical analytics data with no modification, deletion, or execution of…
Documented attack patterns abuse exactly the kind of access cortex_tool_stats gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Cortex Hub, and nothing reaches the server without passing your rules. This is the rule we recommend for cortex_tool_stats:
{
"version": "1",
"default": "deny",
"tools": {
"cortex_tool_stats": {}
}
} cortex_tool_stats is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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View Cortex MCP tool usage analytics: success rates, latency, token estimates, and trends. Use to measure Cortex effectiveness and identify flaky tools. Available to all team members. It is categorised as a Read tool in the Cortex Hub MCP Server, which means it retrieves data without modifying state.
Register the Cortex Hub MCP server in PolicyLayer and add a rule for cortex_tool_stats: 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 Cortex Hub. Nothing to install.
cortex_tool_stats 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 cortex_tool_stats 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 cortex_tool_stats. 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.
cortex_tool_stats is provided by the Cortex Hub MCP server (lktiep/cortex-hub). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Cortex Hub, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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25 Cortex Hub tools catalogued and risk-classified — across an index of 43,000+ MCP servers.