game_center_leaderboards_localizations_get_to_many_related

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

No annotations, so the description carries the burden. It does disclose the one critical trait — that the endpoint is deprecated — which is genuine context. But it says nothing about read-only semantics beyond the implied GET, pagination behavior despite a limit parameter, or what the response contains.

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?

Very short, which is fine, but the single sentence wastes half its length repeating the identical path string twice in parentheses. The deprecation flag is front-loaded, which is the only structural merit.

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?

With full schema coverage and no output schema, the description's main gap is that it never characterizes the return set (a paginated collection of localization resources) or that the endpoint is superseded. The deprecation notice partially offsets the missing context.

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 all six parameters (id, limit, include, and the three sparse-fieldset params) are documented in the schema. The description adds no parameter meaning, which is acceptable at baseline 3 when the schema is complete.

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 a restatement of the tool name as a REST path, duplicated twice, with no plain-language statement of what it returns. An agent can infer 'list localizations for a leaderboard' from the path, but the text adds nothing beyond the identifier itself.

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?

No guidance on when to use this versus alternatives. The '[DEPRECATED]' tag faintly implies preferring a non-deprecated variant (e.g., game_center_leaderboard_versions_v2_localizations_get_to_many_related in the sibling list), but no such alternative is named or condition given.

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