update_user_group

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

The description implies a mutation operation and lists the fields that can be updated, providing some behavioral insight. However, it does not disclose side effects, idempotency, or whether updates are incremental or full replacements. With no annotations, the description carries the full burden but offers only a brief overview.

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 a single, front-loaded sentence that conveys the essential information without any wasted words. It is as concise as possible while still being informative.

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 absence of an output schema and low schema coverage, the description provides a minimal but functional overview. It covers the main update operations but lacks details on parameter optionality, the nature of the members update (add/rem), and any return value information. It is adequate for simple use but not fully comprehensive.

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?

The schema description coverage is only 25%, but the description adds meaning for three of four parameters by explaining 'rename' (name), 'change handle' (handle), and 'add/remove members' (members object). This compensates significantly for the schema's lack of descriptions.

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 the action ('Update') and resource ('User Group'), and lists specific operations (rename, change handle, add/remove members). This distinguishes it from sibling tools like create_user_group, delete_user_group, and list_user_groups.

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?

The description provides no guidance on when to use this tool vs alternatives, nor does it mention prerequisites or when not to use it. For example, it does not indicate that the group_id is required or that only partial updates are possible.

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