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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering the safety profile. The description adds nothing beyond the resource name — no return format, no coverage of what the type/season parameters actually change in the result.

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?

It is a single front-loaded fragment with no wasted words, but it is under-specified rather than genuinely concise — brevity here comes from omission, not efficiency.

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 annotations cover the read-only nature, so return values and safety need no explanation. Still, for a tool with three filter parameters the description provides no context on defaults or league coverage beyond the two league names.

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 100%, with date, type, and season all documented in the schema itself, so the baseline is 3. The description adds no syntax, format, or defaulting detail beyond what the schema already states.

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 names the specific resource (standings) and its scope (American League and National League), so an agent knows exactly what it returns. It does not, however, differentiate itself from sibling standings tools such as espn_standings, flashscore_tournament_standings, or yahoo_sports_standings.

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?

There is no guidance on when to use this versus other standings sources, nor any mention of the available regularSeason/wildCard/springTraining modes or snapshot-date use case. Usage is only implied by the tool name.

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