AI agents call download_file to retrieve information from Baidu Pan without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool generates or retrieves a download link, which is a read operation that accesses file metadata/download information without side effects. No data is modified, deleted, or code executed. The user must still complete the actual download separately via the link.
From the tool's definition Tool name is 'download_file' and description states it 'obtains a download link for Baidu Netdisk files' (获取百度网盘文件的下载链接). This retrieves a URL/link rather than executing code or modifying data.
Attacks that exploit this kind of access
获取百度网盘文件的下载链接. It is categorised as a Read tool in the Baidu Pan MCP Server, which means it retrieves data without modifying state.
Register the Baidu Pan MCP server in PolicyLayer and add a rule for download_file: 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 Baidu Pan. Nothing to install.
download_file 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 download_file 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 download_file. 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.
download_file is provided by the Baidu Pan MCP server (xileforcly/baidu-pan-mcp-server). 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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