AI agents call misp_search_galaxy_clusters to retrieve information from Misp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a lookup/search operation against the MISP galaxy cluster database to retrieve information about MITRE ATT&CK techniques, threat actors, malware, and related threat intelligence. It has no side effects, does not modify data, and does not trigger actions. The blast radius of misuse is minimal — an agent could retrieve incorrect information but cannot cause damage to systems or data integrity.
From the tool's definition Tool name contains 'search' and description states it 'Search galaxy clusters by keyword' — a query operation that retrieves existing threat intelligence data without modification, deletion, or execution.
Attacks that exploit this kind of access
Search galaxy clusters by keyword (find specific MITRE ATT&CK techniques, threat actors, malware, etc.). It is categorised as a Read tool in the Misp MCP Server, which means it retrieves data without modifying state.
Register the Misp MCP server in PolicyLayer and add a rule for misp_search_galaxy_clusters: 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 Misp. Nothing to install.
misp_search_galaxy_clusters 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 misp_search_galaxy_clusters 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 misp_search_galaxy_clusters. 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.
misp_search_galaxy_clusters is provided by the Misp MCP server (solomonneas/misp-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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