AI agents call get_pdf_info to retrieve information from Pdf Navigator without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves PDF metadata and basic information without creating, modifying, deleting, or executing any operations. It is a straightforward read operation consistent with the Read category (retrieves or queries data; no side effects). The severity is low because metadata disclosure poses minimal risk—it cannot modify documents, execute code, or cause irreversible harm.
From the tool's definition Tool name 'get_pdf_info' and description 'Get metadata and basic information about a PDF file' indicate data retrieval with no modification. Metadata and basic information are read-only operations with no side effects.
Documented attack patterns abuse exactly the kind of access get_pdf_info gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Pdf Navigator, and nothing reaches the server without passing your rules. This is the rule we recommend for get_pdf_info:
{
"version": "1",
"default": "deny",
"tools": {
"get_pdf_info": {}
}
}get_pdf_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get metadata and basic information about a PDF file. It is categorised as a Read tool in the Pdf Navigator MCP Server, which means it retrieves data without modifying state.
Register the Pdf Navigator MCP server in PolicyLayer and add a rule for get_pdf_info: 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 Pdf Navigator. Nothing to install.
get_pdf_info 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_pdf_info 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_pdf_info. 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_pdf_info is provided by the Pdf Navigator MCP server (matsengrp/pdf-navigator-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Pdf Navigator, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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7 Pdf Navigator tools catalogued and risk-classified — across an index of 43,000+ MCP servers.