game_center_detail_players_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 burden. It discloses nothing about mutation semantics: whether the PATCH is partial or full-replace, required permissions, reversibility, or side effects on the game center detail.

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 route is redundantly printed twice in the same sentence ('(PATCH /v1/gameCenterDetailPlayers/{id})'), which is wasted space, and the remaining text is a schema pointer rather than useful front-loaded content.

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 mutation tool with no annotations and no output schema, the description is far too thin: it explains neither the operation's effect nor its request envelope beyond a schema name. Only the route and a schema pointer are supplied, leaving the agent unable to call this correctly without external lookup.

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% and both parameters (id, body) are documented in the schema, so the baseline is 3. The description's pointer to components.schemas.GameCenterDetailPlayerUpdateRequest merely duplicates the schema's own 'Shape:' note and adds no new meaning.

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 method and route (PATCH /v1/gameCenterDetailPlayers/{id}), which is already encoded in the tool name 'update_instance'. It never states in prose what a 'gameCenterDetailPlayer' update actually changes, nor distinguishes it from siblings like game_center_details_update_instance or blocked_players relationships.

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 tool versus alternatives, no prerequisites, and no mention of the resource lifecycle. An agent gets nothing to route on beyond the verb in the name.

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