get_groups_members_by_username_or

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

No annotations provided, so description carries full burden. It only states basic purpose; lacks details on permissions, error conditions, or what happens if user not found. Minimal behavioral context.

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?

Single sentence, 10 words—very concise. However, it sacrifices necessary detail, particularly about parameters, which could be added efficiently.

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?

Despite having an output schema, the description is too sparse for a tool with 2 parameters and 0% schema description coverage. Lacks context on how to use parameters and what distinguishes this from siblings.

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 0%. Tool description adds no meaning to parameters; does not explain that 'username_or_id' can be string or UUID, nor the role of 'accept-language'.

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?

Description clearly states verb 'Returns', resource 'a single user', and context 'belonging to the current group'. It distinguishes from sibling 'list_groups_members' which retrieves all members.

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?

Implies usage for fetching a specific user by username or ID, but no explicit when-to-use or when-not-to-use guidance, nor comparison with alternatives like 'list_groups_members' or other user endpoints.

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