AI agents call search_games to retrieve information from Mcp Steam without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries game information from the Steam store without creating, modifying, deleting, or executing any operations. It is a pure read operation analogous to a search or fetch function. The low severity reflects minimal blast radius—even if misused by an agent, searches cannot damage data, expose sensitive information beyond what is publicly available, or cause unwanted state changes.
From the tool's definition Tool name 'search_games' and description 'Search the Steam store for games' indicate querying/retrieval of publicly available Steam store data with no side effects.
Attacks that exploit this kind of access
Search the Steam store for games. It is categorised as a Read tool in the Mcp Steam MCP Server, which means it retrieves data without modifying state.
Register the Mcp Steam MCP server in PolicyLayer and add a rule for search_games: 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 Mcp Steam. Nothing to install.
search_games 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 search_games 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 search_games. 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.
search_games is provided by the Mcp Steam MCP server (obrien-matthew/mcp-steam). 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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