AI agents call get_host_summary to retrieve information from Ceph MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and summarizes host information from a Ceph cluster without modifying, deleting, or executing any operations. It is purely informational, consistent with other sibling tools on this server that are all 'get_*' operations. The blast radius of misuse is minimal—at worst, an AI agent could gather unnecessary cluster information, but no resources would be affected.
From the tool's definition Tool name 'get_host_summary' and description 'Get cluster host summary' indicate a retrieval operation with no side effects. This is a query operation that gathers information about cluster hosts.
Documented attack patterns abuse exactly the kind of access get_host_summary gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ceph MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_host_summary:
{
"version": "1",
"default": "deny",
"tools": {
"get_host_summary": {}
}
}get_host_summary is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get cluster host summary. It is categorised as a Read tool in the Ceph MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Ceph MCP Server MCP server in PolicyLayer and add a rule for get_host_summary: 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 Ceph MCP Server. Nothing to install.
get_host_summary 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_host_summary 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_host_summary. 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_host_summary is provided by the Ceph MCP Server MCP server (rajmohanram/ceph-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Ceph MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
18 Ceph MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.