AI agents call citations_get_guidance to retrieve information from USPTO Patent Citation MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears designed to fetch guidance related to patent citations based on the naming convention and the exclusively Read-category nature of peer tools on the USPTO Patent Citation MCP Server. Even though the description is empty, the consistent pattern of data retrieval tools (get_*, search_*) strongly suggests this is a Read operation. No evidence of modification, deletion, execution, or financial impact.
From the tool's definition Tool name 'citations_get_guidance' suggests retrieval of guidance information. Sibling tools on this server are all Read operations (get_*, search_*, validate_query).
Documented attack patterns abuse exactly the kind of access citations_get_guidance gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and USPTO Patent Citation MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for citations_get_guidance:
{
"version": "1",
"default": "deny",
"tools": {
"citations_get_guidance": {}
}
}citations_get_guidance is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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citations_get_guidance. It is categorised as a Read tool in the USPTO Patent Citation MCP Server MCP Server, which means it retrieves data without modifying state.
Register the USPTO Patent Citation MCP Server MCP server in PolicyLayer and add a rule for citations_get_guidance: 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 USPTO Patent Citation MCP Server. Nothing to install.
citations_get_guidance 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 citations_get_guidance 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 citations_get_guidance. 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.
citations_get_guidance is provided by the USPTO Patent Citation MCP Server MCP server (john-walkoe/uspto_enriched_citation_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from USPTO Patent Citation 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.
10 USPTO Patent Citation MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.