Get a professional masked share link for a Materio PDF. This returns a secure URL (e.g., materias.vercel.app/?share=...) that opens the PDF beautifully in the Materio viewer. Use this when finalizing a study session or providing resources to the user. Takes EITHER a raw CDN
AI agents call share_link to retrieve information from Materio 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/generates a shareable URL for an existing PDF resource. It does not create, modify, delete, or execute anything — it simply returns a link. The operation is read-only and non-destructive. Severity is low as the worst-case misuse is sharing a link to an educational PDF.
From the tool's definition Get a professional masked share link for a Materio PDF... returns a secure URL... that opens the PDF beautifully in the Materio viewer
Attacks that exploit this kind of access
Get a professional masked share link for a Materio PDF. This returns a secure URL (e.g., materias.vercel.app/?share=...) that opens the PDF beautifully in the Materio viewer. Use this when finalizing a study session or providing resources to the user. Takes EITHER a raw CDN. It is categorised as a Read tool in the Materio MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Materio MCP Server MCP server in PolicyLayer and add a rule for share_link: 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 Materio MCP Server. Nothing to install.
share_link 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 share_link 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 share_link. 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.
share_link is provided by the Materio MCP Server MCP server (materioa/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
share_link is one line of Materio MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →