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yahoo_sports_playoff_bracket

Retrieve Yahoo Sports playoff bracket slots, seeds, series, and game records for NFL, NBA, MLB, WNBA, and college leagues by league and optional season.

Instructions

Yahoo Sports playoff bracket data. Returns Yahoo's public bracket slots, seeds, series and game records for NFL, NBA, MLB, WNBA, college football, men's college basketball or women's college basketball. NBA also includes the page's separate Play-In Tournament bracket. Use yahoo-sports-playoff-bracket-catalog to discover the current season values.

Input Schema

NameRequiredDescriptionDefault
leagueYesYahoo league key
seasonNoOptional season year from yahoo-sports-playoff-bracket-catalog; defaults to Yahoo's current season

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv1.17.18

TDQS

A3.9/5.0
Behavior3/5

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

No annotations are provided, so the description bears the full burden. It discloses that the data is 'public' and lists the returned record types, but does not mention whether the endpoint is read-only, requires authentication, has rate limits, or how pagination/errors behave.

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

Conciseness4/5

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

The description is three tight sentences, front-loaded with what the tool returns, followed by supported leagues and a useful pointer to the catalog. No filler or redundant restatement of the schema.

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

Completeness4/5

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

With no output schema, the description explains the return contents at a high level (bracket slots, seeds, series, game records) and notes the NBA Play-In Tournament special case. It is largely complete for a simple read endpoint, though it could mention whether the full bracket is always returned or whether data is season-specific.

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?

Schema coverage is 100%, so the input schema already documents both parameters. The description repeats the league list and points to the catalog for season values, but adds no syntax or format details beyond what the schema already provides.

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 tool returns Yahoo Sports playoff bracket data and enumerates the exact record types (slots, seeds, series, game records) and supported leagues. It also distinguishes itself from the catalog sibling by naming it explicitly for season discovery.

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?

It tells the agent to use yahoo-sports-playoff-bracket-catalog to discover current season values, which is a useful alternative for the season parameter. However, it does not explicitly state when to prefer this tool over other Yahoo Sports endpoints (e.g., standings or scoreboard) beyond the obvious 'playoff bracket' scope.

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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