mlb_datacasters

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

Annotations already declare readOnlyHint, openWorldHint, and idempotentHint, so the description only adds 'Auth: none needed' and the return shape. This is useful but minimal; it does not elaborate on data scoping, default behavior, or edge cases. No contradiction with 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 only three lines and includes the definition, return format, and authentication requirement without redundancy. It is concise, though the first line uses jargon that may require disambiguation.

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?

For a simple read-only tool with optional parameters and no output schema, the return format is stated inline and auth is covered. However, it does not explain the effect of the date/sportId parameters in context or provide typical usage scenarios, leaving some gaps for an agent.

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 coverage is 100%, with both 'date' and 'sportId' having descriptions. The tool description adds no further meaning about these parameters, so it meets the baseline for high schema coverage.

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 clearly identifies the resource as 'datacaster assignments' and provides the return structure ({roster:[{person, job}]}), distinguishing it from other MLB personnel tools like mlb_official_scorers. However, it lacks an explicit verb such as 'get' or 'list', relying on the word 'Returns' to imply retrieval.

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?

No guidance is given about when to use this tool versus alternatives. The description does not mention use cases, prerequisites, or when not to use it, leaving the agent without decision-making context for selecting among the many sibling tools.

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