Get ranked stats (tier, rank, LP, wins, losses, winRate)
AI agents call lol_get_ranked to retrieve information from League of Legends 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 queries and returns player ranking information without any side effects. It is a straightforward data retrieval operation, placing it squarely in the Read category. The severity is low because exposing publicly available game statistics poses minimal security risk.
From the tool's definition Tool description explicitly states it retrieves ranked stats: 'Get ranked stats (tier, rank, LP, wins, losses, winRate)'. No modification, deletion, or execution of commands is indicated.
Attacks that exploit this kind of access
Get ranked stats (tier, rank, LP, wins, losses, winRate). It is categorised as a Read tool in the League of Legends MCP Server MCP Server, which means it retrieves data without modifying state.
Register the League of Legends MCP Server MCP server in PolicyLayer and add a rule for lol_get_ranked: 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 League of Legends MCP Server. Nothing to install.
lol_get_ranked 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 lol_get_ranked 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 lol_get_ranked. 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.
lol_get_ranked is provided by the League of Legends MCP Server MCP server (rexlmanu/lol-mcp-server). 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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