AI agents call system_disk_usage to retrieve information from Infra Ops without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries existing system state (disk usage metrics) and returns that information without side effects. It is a straightforward read operation similar to monitoring tools like 'aws_cloudwatch_metrics' in the sibling list. The blast radius of misuse is minimal—an agent retrieving disk usage information cannot cause harm or trigger unintended operations.
From the tool's definition Tool name is 'system_disk_usage' and description states 'Get disk space usage for all mounted filesystems' — this is purely a retrieval/query operation with no modification or execution of system changes.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Get disk space usage for all mounted filesystems. It is categorised as a Read tool in the Infra Ops MCP Server, which means it retrieves data without modifying state.
Register the Infra Ops MCP server in PolicyLayer and add a rule for system_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 Infra Ops. Nothing to install.
system_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 system_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 system_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.
system_disk_usage is provided by the Infra Ops MCP server (skyvanguard/infra-ops-mcp). 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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