MarathonCreateModerator

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

The description adds no behavioral context beyond the action implied by the name and the annotations already declaring readOnlyHint=false. It does not disclose whether duplicate moderator assignments are rejected, whether the teacher must already exist, what side effects occur, or what the response contains.

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 one-sentence description is brief and front-loaded, but it largely restates the tool name and provides no additional framing. It is concise, yet the brevity borders on under-specification rather than deliberate economy.

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 create operation with no output schema, the description is too thin: it does not state what the request body should accomplish, what a successful response looks like, whether both IDs are required, or how this relates to other moderator-management tools. The 100% schema coverage mitigates parameter confusion but not the missing operational context.

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%: bodyTeacherId and bodyMarathonId each have descriptions ('teacher ID' and 'marathon ID'), so the schema already carries parameter meaning. The description itself adds no parameter-level detail, but it does not need to because the schema is sufficient.

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?

Description states a clear action ('Create') and a specific resource ('a marathon moderator'), which is enough to distinguish it from sibling get/delete tools such as MarathonGetModerators and MarathonDeleteModerator. It does not, however, articulate what creating a moderator means in this domain or contrast it with the set-moderation sibling tools.

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 call this tool rather than related siblings like MarathonSetModeratorsForPupil, MarathonSetPupilsForModerator, or MarathonDeleteModerator. The intended scenario must be inferred entirely from the tool name and parameters.

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