Get disk usage information for all mounted partitions.
AI agents call get_disk_usage to retrieve information from System Monitor MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns system monitoring data (disk usage statistics) without side effects. It fits the Read category: retrieves data without changing state. Severity is low because misuse poses no destructive, financial, or code-execution risk—at worst, an agent could repeatedly call it to consume API quota.
From the tool's definition Tool name and description indicate 'Get disk usage information' — a retrieval operation with no modification, deletion, or execution of external commands.
Attacks that exploit this kind of access
Get disk usage information for all mounted partitions. It is categorised as a Read tool in the System Monitor MCP Server MCP Server, which means it retrieves data without modifying state.
Register the System Monitor MCP Server MCP server in PolicyLayer and add a rule for get_disk_usage: 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 System Monitor MCP Server. Nothing to install.
get_disk_usage 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_disk_usage 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_disk_usage. 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_disk_usage is provided by the System Monitor MCP Server MCP server (praveert/cord). 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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