sleeper_get_user_leagues

List the NFL leagues a user belongs to for a given season. Use the user_id from sleeper_get_user.

SERVERSports Hub SOURCEmcp-sports-hub

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/io-github-lacausecrypto-sports-hub/sleeper-get-user-leagues.md

WHAT IT DOES

What sleeper_get_user_leagues does on Sports Hub

AI agents call sleeper_get_user_leagues to retrieve information from Sports Hub without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why sleeper_get_user_leagues is rated Low

This tool queries and retrieves league membership data for a given user and season. It performs no mutations, deletions, or external operations. The data returned is informational (league associations) with no capability to modify, delete, or execute actions. Low severity because disclosure of league membership is minimal risk in a public sports API context.

From the tool's definition Tool description explicitly states 'List the NFL leagues' - a retrieval operation with no modification or side effects. The verb 'List' is a classic read-only query pattern.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sleeper_get_user_leagues safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Sports Hub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sleeper_get_user_leagues, this is the rule to start with:

sleeper_get_user_leagues Allowed

sleeper_get_user_leagues is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sleeper_get_user_leagues": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Sports Hub, apply this rule, and every sleeper_get_user_leagues call is checked against it from then on.

FAQ

Questions about sleeper_get_user_leagues

What does the sleeper_get_user_leagues tool do? +

List the NFL leagues a user belongs to for a given season. Use the user_id from sleeper_get_user. It is categorised as a Read tool in the Sports Hub MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on sleeper_get_user_leagues? +

Register the Sports Hub MCP server in PolicyLayer and add a rule for sleeper_get_user_leagues: 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 Sports Hub. Nothing to install.

What risk level is sleeper_get_user_leagues? +

sleeper_get_user_leagues is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit sleeper_get_user_leagues? +

Yes. Add a rate_limit block to the sleeper_get_user_leagues 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.

How do I block sleeper_get_user_leagues completely? +

Set action: deny in the PolicyLayer policy for sleeper_get_user_leagues. 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.

What MCP server provides sleeper_get_user_leagues? +

sleeper_get_user_leagues is provided by the Sports Hub MCP server (mcp-sports-hub). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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