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christianclaudio

io.github.christianclaudio/espn

Games Get League Events

games_get_league_events
Read-onlyIdempotent

Fetch a league-wide calendar of scheduled sports events by sport and league, optionally filtered by date. Use it to view team schedules and upcoming match dates.

Instructions

Fetch league-wide calendar of scheduled events, optionally filtered by date.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
datesNo
sportYes
leagueYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.9

TDQS

C2.7/5.0
Behavior2/5

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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so the safety profile is fully covered. The description adds no behavioral context beyond that — nothing about pagination, response size, coverage of past vs. future events, or open-world latency.

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?

A single front-loaded sentence with no filler; the scope ('league-wide') and the optional filter are stated immediately. It is efficient, though the extreme brevity is part of what leaves gaps elsewhere.

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

Completeness2/5

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

For a 3-parameter tool with 0% schema description coverage and no output schema, the description is too thin. It neither explains the required sport/league inputs nor the date format, and gives no sense of what the returned calendar contains.

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

Parameters2/5

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

Schema description coverage is 0%, so the description must carry parameter meaning, but it only gestures at the 'dates' filter without giving a format (range string, ISO date, season?). The required 'sport' and 'league' parameters are never explained, leaving an agent to guess accepted values.

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

Purpose4/5

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

The description states a specific verb ('Fetch') and resource ('league-wide calendar of scheduled events'), and the word 'league-wide' implicitly distinguishes it from team-scoped siblings like games_get_team_schedule. However, it does not explicitly differentiate from the similarly named games_get_calendar, so an agent may still hesitate between the two.

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

Usage Guidelines2/5

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

The only usage hint is that dates are 'optional', which is already evident from the schema. There is no guidance on when to choose this over games_get_calendar or games_get_team_schedule, and no prerequisites or exclusions are stated.

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