AI agents call list_attack_patterns to retrieve information from OpenCTI 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 a read-only operation that retrieves a list of attack patterns from the OpenCTI database. It has no side effects, does not execute code, does not modify data, and does not involve financial transactions. The blast radius of misuse is minimal—an agent could retrieve threat intelligence information but cannot cause system damage or data loss. Classification as Read is appropriate.
From the tool's definition Tool name 'list_attack_patterns' and description '列出所有攻擊模式' (list all attack patterns) indicate a retrieval operation that queries threat intelligence data without modifying, deleting, or executing anything.
Documented attack patterns abuse exactly the kind of access list_attack_patterns gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OpenCTI MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_attack_patterns:
{
"version": "1",
"default": "deny",
"tools": {
"list_attack_patterns": {}
}
}list_attack_patterns is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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列出所有攻擊模式. It is categorised as a Read tool in the OpenCTI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenCTI MCP Server MCP server in PolicyLayer and add a rule for list_attack_patterns: 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 OpenCTI MCP Server. Nothing to install.
list_attack_patterns 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_attack_patterns 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_attack_patterns. 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_attack_patterns is provided by the OpenCTI MCP Server MCP server (zxzinn/opencti-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 OpenCTI MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
16 OpenCTI MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.