game_center_leaderboard_sets_v2_update_instance

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

No annotations are provided, so the description carries the full behavioral burden and delivers almost nothing. The PATCH verb hints at a partial mutation, but the description does not state what gets modified, whether unspecified fields are preserved, permission requirements, or whether the change is reversible. For a mutation tool with zero annotation coverage this is a substantial gap.

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, but the endpoint is printed twice in immediate succession ('PATCH /v2/gameCenterLeaderboardSets/{id} (PATCH /v2/gameCenterLeaderboardSets/{id})'), which is pure redundancy rather than concision. No sentence conveys information not already present in the name or schema.

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?

This is a mutation tool with a nested JSON:API envelope body, no annotations, and no output schema, so the description needs to do more than it does. It defers the entire body structure to an external OpenAPI component that an agent may not have access to, leaving the envelope's required attributes and relationships unexplained.

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% (both id and body are documented in the schema), so the baseline is 3. The description adds no parameter meaning beyond the schema — it merely points at components.schemas.GameCenterLeaderboardSetV2UpdateRequest, duplicating what the body property description already says.

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 restates the tool name as an HTTP call ('PATCH /v2/gameCenterLeaderboardSets/{id}') and repeats it verbatim in parentheses. It never says in plain terms what updating a Game Center leaderboard set accomplishes, and it does nothing to distinguish itself from siblings like game_center_leaderboard_sets_v2_create_instance, _delete_instance, or _get_instance. This is effectively a tautology of the identifier plus an endpoint string.

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 statement of when to use this tool versus its v1 counterpart, the create/delete siblings, or relationship-update tools. No prerequisites, no exclusions, no context. The agent gets only the HTTP verb, which is already implied by the name.

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