List all leaderboards for a Steam app with their numeric IDs, names, and sort methods. Requires a free Steam Web API key (STEAM_API_KEY). No publisher access needed.
AI agents call steam_getLeaderboardsForGame to retrieve information from Steam 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 public leaderboard metadata from Steam without side effects. It does not create, modify, delete, or execute operations. The blast radius of misuse is minimal—an agent could only retrieve existing leaderboard information, which is typically public data. Classification as Read is appropriate.
From the tool's definition Tool 'steam_getLeaderboardsForGame' lists leaderboards with metadata (IDs, names, sort methods). The verb 'List' and description 'List all leaderboards' indicate a retrieval operation. No modification, deletion, or execution of code/commands occurs.
Attacks that exploit this kind of access
List all leaderboards for a Steam app with their numeric IDs, names, and sort methods. Requires a free Steam Web API key (STEAM_API_KEY). No publisher access needed. It is categorised as a Read tool in the Steam MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Steam MCP Server MCP server in PolicyLayer and add a rule for steam_getLeaderboardsForGame: 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 Steam MCP Server. Nothing to install.
steam_getLeaderboardsForGame 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 steam_getLeaderboardsForGame 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 steam_getLeaderboardsForGame. 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.
steam_getLeaderboardsForGame is provided by the Steam MCP Server MCP server (tmhsdigital/steam-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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