AI agents call chess_player_games to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
year | number | — | |
month | number | — | |
username | string | Yes |
Parameters from the server's own tool schema.
This tool retrieves historical game data from Chess.com, which is a query operation with no ability to modify, delete, or execute actions. It has no financial impact and no destructive capabilities. The blast radius of misuse is minimal—an agent could only retrieve publicly available game information.
From the tool's definition Tool name 'chess_player_games' and description 'Get recent games for a Chess.com player' indicates a retrieval operation.
Attacks that exploit this kind of access
Get recent games for a Chess.com player. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
chess_player_games accepts 3 parameters: year, month, username. Required: username. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for chess_player_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 UnClick. Nothing to install.
chess_player_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 chess_player_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 chess_player_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.
chess_player_games is provided by the UnClick MCP server (@unclick/mcp-server). 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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