[System] Clean up data to free disk space.
AI agents call system_cleanup to permanently remove resources in CyPerf MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cleaning up data to free disk space implies permanent deletion of files or records. This action is irreversible (freed disk space cannot be recovered), placing it firmly in the Destructive category. The blast radius is high because it could remove test results, configurations, or agent data across the CyPerf system.
From the tool's definition 'Clean up data to free disk space' — irreversibly deletes or purges stored data
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
[System] Clean up data to free disk space. It is categorised as a Destructive tool in the CyPerf MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the CyPerf MCP Server MCP server in PolicyLayer and add a rule for system_cleanup: 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 CyPerf MCP Server. Nothing to install.
system_cleanup is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the system_cleanup 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_cleanup. 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_cleanup is provided by the CyPerf MCP Server MCP server (keysight/cyperf-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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