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

The description adds substantial behavioral context beyond the annotations: account-dependent access/delay/metered usage, no polling or automatic retry, empty-result coverage caveat, affiliate 27 exclusion, and no wagering or account changes. These details are consistent with the read-only, idempotent, non-destructive annotations.

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

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

The description is front-loaded with the core action and is reasonably dense, but it has a run-on opening without punctuation and includes some broad disclaimer language. Most sentences still earn their place by adding operational constraints.

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

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

An output schema exists and the annotations cover the safety profile, so return values and read-only behavior need not be explained. However, the nested required path.id and optional query.include remain undocumented in both schema and description, leaving a meaningful gap.

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

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

Schema description coverage is 0%, and the description does not explain the required path.id event identifier or the optional query.include parameter. It mentions 'canonical IDs' generally, but this does not compensate for the missing parameter-level semantics.

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

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

The description starts with a specific verb and resource: 'Get moneylines for an event.' This clearly distinguishes it from sibling market-type tools such as v1GetSpreads, v1GetTotals, and v1GetTeamTotals without needing to name them.

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

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

The description implies usage through 'Get moneylines for an event' and gives some operational guidance such as 'Use returned canonical IDs,' but it does not explicitly compare this tool to alternatives or state when not to use it.

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