Get Riot account info by Riot ID (gameName#tagLine)
AI agents call lol_get_account 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 retrieves account information without modifying or deleting data, placing it in the Read category. Severity is medium rather than low because account information (even public profiles) could enable account enumeration, targeted harassment, or reconnaissance for account takeover attacks if exposed to adversarial use. However, if Riot ID is public data by design, the actual risk is lower.
From the tool's definition Tool description states 'Get Riot account info' - a retrieval operation with no modification capability. The verb 'Get' and action of querying account information by identifier indicates read-only functionality.
Attacks that exploit this kind of access
Get Riot account info by Riot ID (gameName#tagLine). 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_account: 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_account 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_account 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_account. 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_account 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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