List indexed documents with optional product, type, and language filters.
AI agents call list_documents_catalog to retrieve information from UserGate MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs a listing/retrieval operation on a documentation catalog. It applies filters to search results but does not create, modify, delete, or execute any operations. The action is read-only with no side effects, making it a Read category tool.
From the tool's definition Tool description states 'List indexed documents with optional product, type, and language filters.' This is a retrieval/query operation that returns metadata about available documents without modifying any data.
Attacks that exploit this kind of access
List indexed documents with optional product, type, and language filters. It is categorised as a Read tool in the UserGate MCP MCP Server, which means it retrieves data without modifying state.
Register the UserGate MCP server in PolicyLayer and add a rule for list_documents_catalog: 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 UserGate MCP. Nothing to install.
list_documents_catalog 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_documents_catalog 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_documents_catalog. 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_documents_catalog is provided by the UserGate MCP server (neonsummit/usergate-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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