AI agents call dd_filesystem_stats to retrieve information from Ppdm without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs read-only queries of storage system metrics. It has no capability to modify data, execute operations, delete resources, or commit financial transactions. The blast radius of misuse is minimal — an AI agent could only observe storage statistics, not alter backup configurations, trigger operations, or cause data loss. Classified as Read with low severity.
From the tool's definition Tool retrieves filesystem statistics (total, used, available capacity and percentage) with no modification or side effects.
Attacks that exploit this kind of access
Get Data Domain filesystem capacity — total, used, available in GiB and used percentage. Use to check if DD is running low on space. It is categorised as a Read tool in the Ppdm MCP Server, which means it retrieves data without modifying state.
Register the Ppdm MCP server in PolicyLayer and add a rule for dd_filesystem_stats: 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 Ppdm. Nothing to install.
dd_filesystem_stats 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 dd_filesystem_stats 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 dd_filesystem_stats. 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.
dd_filesystem_stats is provided by the Ppdm MCP server (moodswing9/ppdm-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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