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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety is covered. Beyond that, the description only restates the row grain and stat split, adding nothing on freshness, whether data is live or cached, or any caveats about the external NBA source implied by openWorldHint. With an output schema present, the result-shape sentence is largely redundant.

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?

The single sentence is duplicated verbatim, wasting roughly half the text, and it opens with the malformed fragment 'Get Returns'. Fixing the duplication alone would make it tight, but as supplied it is not front-loaded or waste-free.

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?

Annotations cover read-only safety, an output schema covers return values, and full schema coverage handles parameters, so the description need not do much. Still, for a tool sitting in a dense family of team/opponent/player shooting splits, the absence of any disambiguation leaves a real gap an agent cannot fill from structured fields alone.

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% and all four parameters (season, per_mode, league_id, season_type) carry their own descriptions and defaults, so the schema does the work. The description adds no meaning about how per_mode or season_type alter the returned table. Baseline 3 is appropriate.

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 names a concrete resource (the league's team shooting table) and its grain (one row per team), with the stat scope spelled out as the shooting line split overall and from three. However, it makes no attempt to distinguish this from near-identical siblings such as nba_opp_pt_shot (opponent splits) or nba_team_stats, so an agent must guess which table it needs. The opening 'Get Returns' is also garbled, weakening an otherwise specific statement.

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 when-to-use guidance, no mention of when to prefer nba_opp_pt_shot, nba_player_pt_shot, or nba_team_stats instead, and no prerequisites. The only contextual hints (defaults for season and per_mode, the note that only league 00 is verified) live in the schema, not the description.

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