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christianclaudio

io.github.christianclaudio/espn

Games Get Event Odds

games_get_event_odds
Read-onlyIdempotent

Fetch sports betting odds, point spreads, over/unders, and moneylines for a game event to compare sportsbook lines.

Instructions

Fetch sports betting odds, point spreads, over/under, and moneylines across sportsbooks via ESPN Core API.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sportYes
leagueYes
event_idYes
competition_idNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.9

TDQS

B3.1/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds the source ('ESPN Core API') and that odds are across sportsbooks, but does not disclose authentication needs, rate limits, or return structure.

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 a single front-loaded sentence with no filler. It states the resource and scope efficiently.

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 tool with four parameters, 0% schema coverage, and no output schema, the description is too thin. It covers the purpose but omits any parameter guidance or return-value context.

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

Parameters1/5

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

Schema description coverage is 0% for four parameters, including three required ones. The description does not explain sport, league, event_id, or competition_id, so it fails to compensate for the schema's lack of parameter documentation.

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 states a specific verb and resource: fetch sports betting odds, point spreads, over/under, and moneylines. This clearly distinguishes it from sibling tools that retrieve scores, standings, or futures.

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 description gives no guidance on when to use this tool versus alternatives such as games_get_futures or games_get_scoreboard. Usage is only implied by the purpose.

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