game_center_matchmaking_teams_create_instance

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

With no annotations provided, the description carries the full behavioral burden, yet it discloses only that the call is a POST (implying a write). It omits authentication/permission requirements, whether the resource is created under a parent, and any side effects of team creation.

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 short and front-loads the endpoint, but the parenthetical literally duplicates 'POST /v1/gameCenterMatchmakingTeams' verbatim, wasting the only content-bearing sentence. The remaining sentence is a bare schema reference.

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 creation tool with a nested JSON:API body and no output schema, the description leaves too much unstated. Pointing to an external OpenAPI component is the bare minimum, and nothing is said about the required JSON:API envelope structure, relationships, or the result of successful creation.

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%: the single body parameter already documents 'Shape: components.schemas.GameCenterMatchmakingTeamCreateRequest.' The description merely repeats that same pointer without adding field-level meaning, so the schema does the heavy lifting and the baseline of 3 applies.

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 only restates the HTTP verb and path ('POST /v1/gameCenterMatchmakingTeams') plus a pointer to the OpenAPI request component. It never says what a 'matchmaking team' is or why one would create it, and it does nothing to distinguish itself from its siblings game_center_matchmaking_teams_update_instance and game_center_matchmaking_teams_delete_instance.

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 when-to-use guidance, no prerequisites, and no mention of alternatives. An agent learns only that this is the POST endpoint for the teams resource, with nothing about when creating a team is the right action versus updating one.

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