sleeper_league

Get a Sleeper fantasy league by ID.

SERVERUnClick SOURCE@unclick/mcp-server

Low RISK CLASS

Category Read

Parameters 11 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/sleeper-league.md

WHAT IT DOES

What sleeper_league does on UnClick

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

Parameter	Type	Required	Description
`league_id`	string	Yes

Parameters from the server's own tool schema.

RISK

Why sleeper_league is rated Low

This tool retrieves existing fantasy league data by ID. It does not modify, delete, or execute any operations—it only reads and returns information. The low severity reflects that unauthorized access would expose league data but pose minimal risk of broader system compromise or financial loss.

From the tool's definition Tool name 'sleeper_league' and description 'Get a Sleeper fantasy league by ID' indicate a retrieval operation with the verb 'Get', which performs a query without side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sleeper_league safely

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

sleeper_league Allowed

sleeper_league 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_league": {}
  }
}

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

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

FAQ

Questions about sleeper_league

What does the sleeper_league tool do? +

Get a Sleeper fantasy league by ID. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does sleeper_league accept? +

sleeper_league accepts 1 parameter: league_id. Required: league_id. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sleeper_league? +

Register the UnClick MCP server in PolicyLayer and add a rule for sleeper_league: 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.

What risk level is sleeper_league? +

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

Can I rate-limit sleeper_league? +

Yes. Add a rate_limit block to the sleeper_league 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_league completely? +

Set action: deny in the PolicyLayer policy for sleeper_league. 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_league? +

sleeper_league 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.

KEEP EXPLORING

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