AI agents call get_club_members to retrieve information from Chess Com 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 and queries public club membership data without modifying, deleting, or executing any operations. It has no side effects and presents minimal security risk. The information retrieved is already public on Chess.com, so exposure carries negligible consequences even if an AI agent misuses it.
From the tool's definition Tool is named 'get_club_members' and described as 'Get members of a club on Chess.com'. It retrieves a list of club members, which is publicly available information on Chess.com's platform.
Documented attack patterns abuse exactly the kind of access get_club_members gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Chess Com MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_club_members:
{
"version": "1",
"default": "deny",
"tools": {
"get_club_members": {}
}
}get_club_members is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get members of a club on Chess.com. It is categorised as a Read tool in the Chess Com MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Chess Com MCP Server MCP server in PolicyLayer and add a rule for get_club_members: 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 Chess Com MCP Server. Nothing to install.
get_club_members 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_club_members 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_club_members. 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_club_members is provided by the Chess Com MCP Server MCP server (pab1it0/chess-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Chess Com MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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10 Chess Com MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.