AI agents call search_threat_activity to retrieve information from Rapid7 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries historical log data for occurrences of known indicators of compromise (IOCs). It retrieves information without modifying, deleting, or executing operations. While it could reveal sensitive findings about detected threats, the read-only nature and investigative context (SIEM threat intelligence lookup) classify it as Read with low severity.
From the tool's definition Tool performs a search operation to 'find where known IOCs have been seen' in logs. The verb 'search' and the read-only action of locating threat indicator matches indicate no data modification, deletion, or external execution.
Attacks that exploit this kind of access
Search for threat indicator matches in InsightIDR logs — find where known IOCs have been seen. It is categorised as a Read tool in the Rapid7 MCP Server, which means it retrieves data without modifying state.
Register the Rapid7 MCP server in PolicyLayer and add a rule for search_threat_activity: 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 Rapid7. Nothing to install.
search_threat_activity 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 search_threat_activity 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 search_threat_activity. 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.
search_threat_activity is provided by the Rapid7 MCP server (solomonneas/rapid7-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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