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DanielTomaro13

sportsdata-mcp

polymarket_event

Retrieve an event by Gamma ID, returning all markets, volume, liquidity, and event details.

Instructions

One event by Gamma id, with all its markets.

Returns: {id, title, slug, description, volume, liquidity, endDate, tags, markets:[…]}

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYes
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It only mentions the return shape but fails to disclose if the tool is read-only, authentication requirements, rate limits, or any side effects. For a read operation, this is insufficient.

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 two sentences, front-loading the purpose and then the return format. No unnecessary words, though it could benefit from more detail.

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

Completeness3/5

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

For a simple 1-parameter read tool, the description covers the basic purpose and output shape. However, missing parameter documentation and behavioral details leave gaps. Adequate but not complete.

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?

With 0% schema description coverage, the description should compensate but only mentions 'by Gamma id' without explaining what Gamma id is, its format, or how to obtain it. This adds minimal value 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 tool retrieves one event by Gamma id with all its markets, which distinguishes it from sibling tools like polymarket_events (likely list) and polymarket_market (single market). The verb 'get' and resource 'event' are explicit.

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 provides no guidance on when to use this tool versus alternatives, no prerequisites, and no context for selection among siblings like polymarket_events or polymarket_market.

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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