AI agents call get_featured_categories 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 categorization information from the Steam store, which is a read-only query operation. It has no side effects, does not modify data, execute code, or commit financial transactions. The blast radius of misuse is minimal—an agent could only retrieve publicly available store categories. Classification as Read is appropriate.
From the tool's definition Tool name 'get_featured_categories' and description 'Get Steam store featured categories' indicate retrieval of static or semi-static store category data with no modification, creation, or execution capability.
Attacks that exploit this kind of access
Get Steam store featured categories. 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 get_featured_categories: 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.
get_featured_categories 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 get_featured_categories 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 get_featured_categories. 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.
get_featured_categories 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.
Teams ship this data inside their own products. See what a licence covers →