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

Annotations already declare this is a safe, idempotent, closed-world read, and the description's real contribution is disclosing the composite content of the response (roster, coaches, stories, rivalries, stadium). It adds nothing about cost, payload size, or team-identification behavior, which matters for an aggregate endpoint.

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 compact sentence with the resource and its contents front-loaded and no filler. It is efficient, though the space saved was not reinvested in the parameter or resolution guidance the tool needs.

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 two-parameter aggregate tool with zero schema coverage and no required parameters, the description leaves the core question unanswered: how to identify the team. The output schema does cover return values, and the title supplies the basketball scope, but selection semantics remain undocumented.

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?

There are two parameters (team_id, team_name), both nullable with null defaults, and schema description coverage is 0%, so the description carries the full burden of explaining them — yet it never mentions either. An agent cannot tell from the text whether the parameters are alternative identifiers, whether both must be supplied, or what happens when both are omitted.

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?

Uses a specific verb ('Get') plus resource ('team dossier') and enumerates the payload (roster, coaches, stories, rivalries, stadium), which makes it clearly the aggregate read tool. It stops short of naming the narrower siblings (get_team_roster, get_team_stories, get_rivalries, get_stadium) that would let an agent distinguish this from those in one read.

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 explicit when-to-use guidance: nothing says to prefer this over get_team_roster/get_team_stories/get_rivalries/get_stadium when only one slice is needed, nor when it is worth the heavier aggregate call. The 'full dossier' phrasing only weakly implies broad lookups, leaving the agent to infer the choice.

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