Get stats for one or more players on a specific date. Player keys look like 431.p.10642.
AI agents call get_player_stats to retrieve information from Yahoo Fantasy Baseball without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
date | string | — | Date as YYYY-MM-DD; defaults to today |
playerKeys | array | Yes | Player keys, e.g. 431.p.10642 |
Parameters from the server's own tool schema.
This tool queries and retrieves player statistics without modifying, deleting, or executing any actions. It is a straightforward data retrieval function typical of Read category tools. The low severity reflects minimal risk if misused—an agent could only retrieve information already accessible within the fantasy baseball context.
From the tool's definition Tool name 'get_player_stats' and description 'Get stats for one or more players on a specific date' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get stats for one or more players on a specific date. Player keys look like 431.p.10642. It is categorised as a Read tool in the Yahoo Fantasy Baseball MCP Server, which means it retrieves data without modifying state.
get_player_stats accepts 2 parameters: date, playerKeys. Required: playerKeys. The full parameter table on this page comes from the server's own tool schema.
Register the Yahoo Fantasy Baseball MCP server in PolicyLayer and add a rule for get_player_stats: 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 Yahoo Fantasy Baseball. Nothing to install.
get_player_stats 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_player_stats 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_player_stats. 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_player_stats is provided by the Yahoo Fantasy Baseball MCP server (yahoo-fantasy-baseball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_player_stats is one line of Yahoo Fantasy Baseball's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →