AI agents call get_interest_weights to retrieve information from N Lobby 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 weight scale definitions, which is a query operation with no side effects. It does not create, modify, delete, execute commands, or commit financial transactions. The context of a school portal confirms this is informational metadata retrieval.
From the tool's definition Tool name 'get_interest_weights' with description 'Get interest weight scale definitions' indicates a retrieval operation. The verb 'Get' and noun 'definitions' (static reference data) confirm read-only access to schema/metadata without modifying any data.
Documented attack patterns abuse exactly the kind of access get_interest_weights gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and N Lobby MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_interest_weights:
{
"version": "1",
"default": "deny",
"tools": {
"get_interest_weights": {}
}
}get_interest_weights 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 interest weight scale definitions. It is categorised as a Read tool in the N Lobby MCP Server MCP Server, which means it retrieves data without modifying state.
Register the N Lobby MCP Server MCP server in PolicyLayer and add a rule for get_interest_weights: 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 N Lobby MCP Server. Nothing to install.
get_interest_weights 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_interest_weights 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_interest_weights. 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_interest_weights is provided by the N Lobby MCP Server MCP server (minagishl/nlobby-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from N Lobby 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.
28 N Lobby MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.