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

Annotations already declare readOnlyHint=true, destructiveHint=false, openWorldHint=true, so safety is covered. The description contributes beyond that by disclosing what comes back — the team record plus its member ids — which is the most useful behavioral detail for a read tool with no output schema. It stops short of noting pagination, auth, or errors, which are not especially relevant here.

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?

Two short fragments: return contents first, endpoint second. Zero filler and fully front-loaded.

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?

One required param, no output schema, so the description must carry the return shape — it does so for the member-ids aspect, which is the non-obvious part. It does not enumerate the team's own fields (name, office, etc.), a minor gap for a tool with no output schema.

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 the single team_id parameter already documents format (team_XXXX), length bounds, and where to get ids. The description only repeats 'by id', adding no syntax or edge-case meaning beyond the schema, so the baseline 3 applies.

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 resource (one team), the lookup key (by id), and the payload shape (ids of its team members), plus the underlying endpoint GET /teams/{id}. It implicitly contrasts with charliehr_list_teams but never names that sibling, so differentiation is left partly to inference.

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?

'One team by id' implies the retrieval case, and the schema param description routes the agent to charliehr_list_teams to obtain ids. However, the description itself gives no explicit when-to-use/when-not or alternative (e.g., list_teams vs get_team_member), leaving usage guidance only implied.

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