AI agents call defense_list to retrieve information from Novyx without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name 'defense_list' most naturally implies reading or retrieving a list of defense-related items (rules, policies, or settings), consistent with the broader governance context of Novyx. The 'list' suffix typically indicates data retrieval with no side effects.
From the tool's definition Tool name 'defense_list' suggests a retrieval or listing operation. No description provided to clarify intent.
Documented attack patterns abuse exactly the kind of access defense_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Novyx, and nothing reaches the server without passing your rules. This is the rule we recommend for defense_list:
{
"version": "1",
"default": "deny",
"tools": {
"defense_list": {}
}
}defense_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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defense_list. It is categorised as a Read tool in the Novyx MCP Server, which means it retrieves data without modifying state.
Register the Novyx MCP server in PolicyLayer and add a rule for defense_list: 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 Novyx. Nothing to install.
defense_list 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 defense_list 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 defense_list. 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.
defense_list is provided by the Novyx MCP server (novyxlabs/novyx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 120 Novyx tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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120 Novyx tools catalogued and risk-classified — across an index of 42,500+ MCP servers.