list_documents
AI agents call list_documents to retrieve information from MCP Document Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool lists documents without modifying, deleting, or executing anything. It retrieves metadata to help users discover available documents. Even though the description field is empty, the tool name and server context make the function clear: a read operation with no side effects.
From the tool's definition Tool name 'list_documents' combined with server description stating it 'supports document retrieval, listing, and keyword search'. The word 'listing' directly indicates a read-only enumeration function.
Attacks that exploit this kind of access
list_documents. It is categorised as a Read tool in the MCP Document Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Document Server MCP server in PolicyLayer and add a rule for list_documents: 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 MCP Document Server. Nothing to install.
list_documents 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 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. 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 is provided by the MCP Document Server MCP server (onoda4480/document-server-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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