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yooitsgreg

sleeper-mcp

by yooitsgreg

Get League Winners Bracket

sleeper_get_league_winners_bracket
Read-onlyIdempotent

Retrieves the championship playoff bracket for a Sleeper league, showing matchups, rounds, and results.

Instructions

Get the playoff winners bracket (championship bracket) for a Sleeper fantasy league.

Args:

  • league_id (string): The Sleeper league ID

Returns: Bracket structure showing playoff matchups, rounds, and results.

Examples:

  • "Show me the playoff bracket for league 123456"

  • "Who won the championship in this league?"

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
league_idYesSleeper league ID
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already provide readOnlyHint, openWorldHint, idempotentHint, and destructiveHint as false. The description adds value by detailing the return type ('Bracket structure showing playoff matchups, rounds, and results'), which goes beyond annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise with clear sections (Args, Returns, Examples). Every sentence serves a purpose without fluff.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with one parameter and no output schema, the description is complete. It explains what the tool does, what it returns, and provides examples.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema covers 100% of parameters with a description for league_id. The description repeats this information but does not add new semantic meaning beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action 'Get the playoff winners bracket' and specifies 'for a Sleeper fantasy league'. It differentiates from the sibling tool 'sleeper_get_league_losers_bracket' by using the term 'winners bracket'.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

While not explicitly stating when not to use, the description implies usage for retrieving the championship bracket. Examples provide context for when to invoke this tool (e.g., 'Show me the playoff bracket'). No explicit alternatives are given, but sibling names clarify.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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