Detect trending keyword spikes against historical baselines using Welford
AI agents call intel_keyword_spikes to retrieve information from Threat Intelligence MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs statistical analysis on keyword trends to identify anomalies, which is fundamentally a retrieval and analysis function with no modification, deletion, or execution of external systems. It reads historical baseline data and current keyword data to detect spikes, producing informational output. No side effects, data modifications, or external operations are triggered.
From the tool's definition The tool 'intel_keyword_spikes' detects and analyzes trending keyword spikes against historical baselines using Welford's algorithm. This is a data analysis and retrieval operation that compares current data against historical patterns.
Documented attack patterns abuse exactly the kind of access intel_keyword_spikes gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Threat Intelligence MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for intel_keyword_spikes:
{
"version": "1",
"default": "deny",
"tools": {
"intel_keyword_spikes": {}
}
}intel_keyword_spikes is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Detect trending keyword spikes against historical baselines using Welford. It is categorised as a Read tool in the Threat Intelligence MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Threat Intelligence MCP Server MCP server in PolicyLayer and add a rule for intel_keyword_spikes: 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 Threat Intelligence MCP Server. Nothing to install.
intel_keyword_spikes 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 intel_keyword_spikes 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 intel_keyword_spikes. 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.
intel_keyword_spikes is provided by the Threat Intelligence MCP Server MCP server (marc-shade/world-intel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Threat Intelligence 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.
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