Get global achievement unlock percentages for a Steam app. Shows how many players have unlocked each achievement. No API key required.
AI agents call steam_getAchievementStats 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 publicly available aggregate statistics about Steam achievement data. It performs no modifications, deletions, code execution, or financial operations. The data queried (global unlock percentages) is non-sensitive aggregate information that Steam publicly exposes. Misuse by an AI agent would result in harmless information gathering with no blast radius.
From the tool's definition Tool description explicitly states it 'Get[s] global achievement unlock percentages' and 'Shows how many players have unlocked each achievement' — purely informational queries with 'No API key required' indicating read-only access.
Attacks that exploit this kind of access
Get global achievement unlock percentages for a Steam app. Shows how many players have unlocked each achievement. No API key required. 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_getAchievementStats: 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_getAchievementStats 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_getAchievementStats 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_getAchievementStats. 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_getAchievementStats 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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Teams ship this data inside their own products. See what a licence covers →