Scrape Lolalytics for best builds, runes, counters, and meta data for a champion
AI agents call lol_get_builds_for_champion 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 performs read-only operations: scraping a public website (Lolalytics) to fetch build recommendations, rune configurations, counter pick information, and meta statistics for League of Legends champions. It retrieves and aggregates data without creating, modifying, deleting, or executing any game-affecting operations.
From the tool's definition Tool description states it 'Scrape[s] Lolalytics for best builds, runes, counters, and meta data' — purely retrieval of existing public game meta data with no data modification or side effects.
Attacks that exploit this kind of access
Scrape Lolalytics for best builds, runes, counters, and meta data for a champion. 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_builds_for_champion: 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_builds_for_champion 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_builds_for_champion 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_builds_for_champion. 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_builds_for_champion 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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