player_leaderboard_with_player

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

With no annotations provided, the description carries the full burden, and it does so thoroughly: it discloses one logical GET, no continuation-page auto-fetch, local limits of 100 rows and 256 KiB, truncation reporting, refusal of oversized records, and the upstream HTTP 200-with-error-object quirk when season is omitted. It also states that the player record is retained when the list is shortened.

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?

Informativeness is front-loaded in a clear opening sentence and every subsequent sentence adds behavior or edge-case details. A few sentences are verbose or grammatically awkward (e.g., 'The leaderboard list are locally limited'), but there is no substantive repetition.

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?

The description is rich in behavioral caveats—truncation, pagination, upstream errors, policy-driven required inputs—which compensates for the lack of annotations. However, with no output schema and undefined optional parameters, an agent still lacks a clear picture of the exact return structure and the accepted values for 'format' and 'leaderboard'.

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 0%, so the description must compensate. It explains that season and username are required, but it never defines 'format' or 'leaderboard' semantics; 'Other declared filters are forwarded as supplied' is vague and does not tell an agent what values or formats those optional parameters expect.

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 first sentence uses a specific verb ('Read') and a clear resource: the selected season's leaderboard plus the requested player's separate rank record. This distinguishes it from sibling player_leaderboard by the explicit inclusion of a per-player rank record and the requirement for both season and username.

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 description gives clear context for when to call the tool (when both a season leaderboard and a specific player's rank record are needed) and states that both season and username are required. However, it never names alternatives such as player_leaderboard or says when NOT to use this tool, so the guidance is primarily implied rather than explicit.

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