[Diagnostics] List diagnostic components available for export.
AI agents call diagnostics_list_components to retrieve information from CyPerf MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward read/query operation that retrieves information about available diagnostic components. It has no side effects, does not execute code, does not modify data, and does not involve destructive or financial operations. The blast radius of misuse is minimal — an agent could only enumerate diagnostic data, which poses no immediate risk.
From the tool's definition Tool name contains 'list' and description states 'List diagnostic components available for export' — a query operation that retrieves and enumerates available diagnostic components without modifying or executing anything.
Attacks that exploit this kind of access
[Diagnostics] List diagnostic components available for export. It is categorised as a Read tool in the CyPerf MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CyPerf MCP Server MCP server in PolicyLayer and add a rule for diagnostics_list_components: 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.
diagnostics_list_components 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 diagnostics_list_components 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 diagnostics_list_components. 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.
diagnostics_list_components 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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