AI agents call list_libraries to retrieve information from Kiwix Wiki MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves information about what offline libraries are available in the Kiwix system. It has no side effects, cannot execute code, cannot modify data, and cannot delete anything. It is a straightforward read operation with minimal security risk — the worst case is information disclosure about available content, which has low impact.
From the tool's definition Tool name is 'list_libraries' and description states it 'List available offline libraries in Kiwix' — a pure query operation that retrieves metadata about available content without modifying, executing, or deleting anything.
Documented attack patterns abuse exactly the kind of access list_libraries gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kiwix Wiki MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_libraries:
{
"version": "1",
"default": "deny",
"tools": {
"list_libraries": {}
}
}list_libraries is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List available offline libraries in Kiwix. It is categorised as a Read tool in the Kiwix Wiki MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kiwix Wiki MCP Server MCP server in PolicyLayer and add a rule for list_libraries: 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 Kiwix Wiki MCP Server. Nothing to install.
list_libraries 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 list_libraries 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 list_libraries. 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.
list_libraries is provided by the Kiwix Wiki MCP Server MCP server (jeffreyrampineda/kiwix-wiki-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kiwix Wiki 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.
3 Kiwix Wiki MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.