game_center_leaderboards_localizations_get_to_many_relationship

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 it discloses only deprecation status. It says nothing about pagination behavior (despite a limit param), what the localization relationship resolves to, permissions required, or return shape.

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 deprecation flag, which is good. However, the parenthetical repeat of the identical endpoint string is pure redundancy that earns no place.

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 relationship-fetch endpoint with no annotations and no output schema, the description should explain what the localizations relationship returns and any scoping. Instead it only restates the URL, leaving the agent without enough context to invoke it confidently.

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%, so the two parameters (id, limit) are already fully documented in the schema. The description adds no parameter meaning beyond that, which lands on the baseline of 3.

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 is essentially the raw HTTP endpoint repeated verbatim in parentheses ('GET /v1/gameCenterLeaderboards/{id}/relationships/localizations'), which is a tautological restatement of the name rather than a described purpose. The [DEPRECATED] tag is the only added signal. It does not differentiate from close siblings like game_center_leaderboards_localizations_get_to_many_related or the v2 variants.

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 [DEPRECATED] prefix is genuine, useful guidance that tells an agent to avoid this tool, but there is no stated alternative to use instead and no condition distinguishing it from the non-deprecated 'related' sibling. No when-to-use context is provided.

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