Retrieve the full text of a document by filename.
AI agents call get_document to retrieve information from MCP Demo - Document Search Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves document content by filename and returns it. There are no side effects, data modifications, destructive operations, code execution, or financial implications. The action is purely informational and reversible by design. Severity is low because reading local documents poses minimal risk; the blast radius is limited to information disclosure of files the MCP server has access to.
From the tool's definition Tool description states 'Retrieve the full text of a document by filename' — a query operation that retrieves data without modification or deletion. The server is described as enabling 'search' of 'local documents', consistent with read-only access patterns.
Attacks that exploit this kind of access
Retrieve the full text of a document by filename. It is categorised as a Read tool in the MCP Demo - Document Search Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Demo - Document Search Server MCP server in PolicyLayer and add a rule for get_document: 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 Demo - Document Search Server. Nothing to install.
get_document 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 get_document 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 get_document. 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.
get_document is provided by the MCP Demo - Document Search Server MCP server (simplifyaimm/mcp-demo). 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.
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