Create Group

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

No annotations are provided, so the description carries the burden of disclosing side effects. It states that it creates a group and optionally adds members, but it does not mention permissions, whether the operation is reversible, what happens if invalid user data is supplied, or what simplify_by_default does beyond its schema default.

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 compact sentences with no filler. The core action is front-loaded, and the parameter guidance is presented in a readable, scannable format.

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?

The definition is adequate for a simple creation tool, and the presence of an output schema reduces the need to describe return values. But with no annotations and 0% schema description coverage, the unexplained simplify_by_default parameter and absence of sibling-contrast guidance leave meaningful gaps.

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%, so the description must compensate. It adds explicit allowed values for group_type and the accepted user identifier shapes (user_id or email+name), which is genuinely helpful. However, it omits simplify_by_default entirely and does not clarify the required name field beyond the schema.

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 opens with a direct verb and resource: 'Create a new group.' It further clarifies scope by listing valid group_type values and the optional initial-members behavior, which clearly distinguishes it from sibling tools like delete_group, get_group, and add_user_to_group.

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 statement of when to use this tool versus alternatives. The phrase 'Optionally add initial members' implies that creation-time member addition belongs here rather than in add_user_to_group, but it never names a sibling or gives a when-not-to-use condition.

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