Return the stat categories used for scoring in this league (e.g. R, HR, RBI, SB, AVG for batting; W, ERA, WHIP, K, SV, HLD for pitching). Always call this before giving roster add/drop advice so recommendations reflect what actually scores in this league. Results are cached in config since catego...
AI agents call get_league_scoring_categories 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 |
|---|---|---|---|
leagueKey | string | — | League key; defaults to configured league |
Parameters from the server's own tool schema.
This tool retrieves league scoring categories—purely informational data with no side effects, modifications, or external operations. It is a straightforward data retrieval operation (Read category) with minimal blast radius if misused by an AI agent, as it only returns static configuration metadata about scoring rules.
From the tool's definition Tool description states it 'Return[s] the stat categories' and 'Results are cached', indicating it retrieves and queries league configuration data without modifying or deleting anything.
Attacks that exploit this kind of access
Return the stat categories used for scoring in this league (e.g. R, HR, RBI, SB, AVG for batting; W, ERA, WHIP, K, SV, HLD for pitching). Always call this before giving roster add/drop advice so recommendations reflect what actually scores in this league. Results are cached in config since categories rarely change after league creation. Pass leagueKey to force-refresh a different league. It is categorised as a Read tool in the Yahoo Fantasy Baseball MCP Server, which means it retrieves data without modifying state.
get_league_scoring_categories accepts 1 parameter: leagueKey. 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_league_scoring_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 Yahoo Fantasy Baseball. Nothing to install.
get_league_scoring_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_league_scoring_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_league_scoring_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_league_scoring_categories 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_league_scoring_categories 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 →