This record as markdown: /tools/tjnull-ludus-fastmcp/get-diagnostics.md
What get_diagnostics does on Ludus FastMCP
AI agents call get_diagnostics to retrieve information from Ludus FastMCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_diagnostics is rated Low
This tool retrieves system diagnostic data without altering state, executing code, or triggering external operations. The 'get' prefix and passive retrieval nature place it squarely in the Read category. Severity is low because diagnostic data typically contains no sensitive information that would grant privilege escalation or unauthorized access, and misuse poses minimal risk to the system.
From the tool's definition Tool name 'get_diagnostics' and description 'Get system diagnostics' indicate retrieval of diagnostic information with no modification or execution capability.
Attacks that exploit this kind of access
The rule that runs get_diagnostics safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ludus FastMCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_diagnostics, this is the rule to start with:
get_diagnostics is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Ludus FastMCP, apply this rule, and every get_diagnostics call is checked against it from then on.
Questions about get_diagnostics
Get system diagnostics. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for get_diagnostics: 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 Ludus FastMCP. Nothing to install.
get_diagnostics 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_diagnostics 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_diagnostics. 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_diagnostics is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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