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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), so the bar is lower. The description adds real value by disclosing what comes back (ratings, ranks, roster, game schedule) and that NFL metrics differ from NBA metrics, which matters since there is no output schema. It doesn't say what happens with an invalid team_id or how much game history is returned.

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?

A single dense sentence that front-loads the resource and then lists contents. No filler, no repetition of the title.

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 no output schema, the description does the expected work of naming the return categories, and the schema fully documents the three parameters. Missing only secondary detail such as season-over-season behavior or limits on 'recent games'.

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%, including the league enum and the note that team_id comes from the search tool, so the schema carries parameter meaning. The description only indirectly signals that league affects returned metrics; it adds no syntax or edge-case detail 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?

States a specific verb ('Get') and resource (NBA/NFL team profile) and enumerates the payload: record, offensive/defensive/net ratings or EPA per play & success rate with ranks, roster, and recent/upcoming games. That content profile clearly separates it from player_profile and rankings_and_ratings without needing an explicit exclusion.

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?

Usage is only implied by the content description; there is no explicit when-to-use, no prerequisites (e.g. requiring a team_id from search), and no named alternatives such as rankings_and_ratings or game_projection. An agent can infer the right context from the data described, but nothing is stated.

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