AI agents call read_document_with_media to retrieve information from Document Reader MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and processes document data without creating, modifying, or deleting anything. Extracting media elements (images, links) and reading document content are read-only operations with no side effects. The low severity reflects minimal blast radius - worst case is exposure of document contents already accessible to the user.
From the tool's definition Tool name 'read_document_with_media' and description indicate reading/retrieving document content and media elements.
Documented attack patterns abuse exactly the kind of access read_document_with_media gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Document Reader MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for read_document_with_media:
{
"version": "1",
"default": "deny",
"tools": {
"read_document_with_media": {}
}
}read_document_with_media is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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读取文档内容并包含媒体元素信息（图片、链接等）. It is categorised as a Read tool in the Document Reader MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Document Reader MCP Server MCP server in PolicyLayer and add a rule for read_document_with_media: 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 Document Reader MCP Server. Nothing to install.
read_document_with_media 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 read_document_with_media 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 read_document_with_media. 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.
read_document_with_media is provided by the Document Reader MCP Server MCP server (qitianfeng/document-reader-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Document Reader 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.
6 Document Reader MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.