list_users_by_group

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

No annotations are provided, and the description does not disclose behavioral traits such as whether it is read-only, if authentication is required, or how results are paginated. For a list operation, basic behavioral context is missing.

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 description is efficient: one sentence for purpose followed by a brief but informative parameter list. No unnecessary words. Could improve by front-loading the purpose even more (already does).

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?

Given the tool's simplicity (2 params, output schema exists), the description covers the essentials: what it does and parameter meanings. The output schema presumably documents return values, so the description is reasonably complete.

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?

With 0% schema coverage, the description adds meaningful explanations: 'partial match' for group_name and default value for max_results. This provides clarity beyond the raw schema, though 'partial match' could be more specific (e.g., prefix, substring).

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 clearly states 'List all users in a group' which is a specific verb+resource. It distinguishes from 'list_user_groups' (lists groups) and 'search_users' (general search). However, the 'partial match' on group_name introduces slight ambiguity about how strictly 'all users in a group' is interpreted.

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?

No guidance on when to use this tool versus alternatives like 'search_users' or 'get_user'. No exclusions or scenarios where it should be avoided. The agent must infer usage from the description alone.

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