Download a single file from HDFS.
AI agents call hue_download_file to retrieve information from Hue 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 or queries data from HDFS without creating, modifying, deleting, or executing anything. It has no side effects on the system. The blast radius of misuse is minimal—an attacker could exfiltrate data, but cannot modify or destroy it. This is a straightforward Read category tool.
From the tool's definition Tool name is 'hue_download_file' and description states 'Download a single file from HDFS.' Download operations retrieve data without modification or deletion.
Attacks that exploit this kind of access
Download a single file from HDFS. It is categorised as a Read tool in the Hue MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Hue MCP Server MCP server in PolicyLayer and add a rule for hue_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 Hue MCP Server. Nothing to install.
hue_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 hue_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 hue_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.
hue_download_file is provided by the Hue MCP Server MCP server (spanishst/hueclientrest-mpc). 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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