game_center_leaderboard_set_releases_create_instance

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

With no annotations, the description carries the full behavioral burden. It discloses the important DEPRECATED status and that it is a POST (a mutation), but says nothing about what gets created, required permissions, idempotency, error behavior, or the response. For a write operation with zero annotation coverage, this is a substantial gap, partially offset only by the deprecation warning.

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 DEPRECATED marker, but the endpoint path is needlessly repeated twice in parentheses, wasting space. Structure is acceptable but not tight.

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-instance tool with a nested JSON:API envelope body, no annotations, and no output schema, the description is inadequate. It offloads the entire request shape to an unreachable OpenAPI component and omits any explanation of the JSON:API envelope structure an agent would need to build a valid body.

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?

There is a single body parameter with 100% schema description coverage, so the schema already documents it, giving a baseline of 3. The description merely defers to 'components.schemas.GameCenterLeaderboardSetReleaseCreateRequest', an external reference the agent cannot resolve, adding no field-level meaning beyond the schema.

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 conveys the endpoint (POST /v1/gameCenterLeaderboardSetReleases), from which an agent can infer it creates a leaderboard set release, and the name reinforces this. However, it never states the action in prose and does not distinguish itself from siblings like game_center_leaderboard_set_releases_get_instance or delete_instance beyond the raw path. Purpose is inferable but mechanical rather than clearly articulated.

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?

The only signal is the [DEPRECATED] tag, which warns against use but provides no pointer to a replacement sibling. There is no guidance on when to create a release versus retrieving or deleting one, nor any prerequisites. The agent is left to guess whether the tool should be called at all.

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