create_user_group

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

With no annotations, the description carries the full burden of disclosing behavioral traits. It only says 'Create a user group' and provides no information about side effects, idempotency, error behavior, or return values. This is a mutation tool with zero additional 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?

The description is concise at one sentence with no wasted words, but it is under-specified. It functions more as a title than a full description. While it is not verbose, the lack of structured information (e.g., usage scenarios or parameter context) makes it only minimally adequate.

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?

For a simple create tool with only two parameters and no output schema, the description is insufficient. It does not explain expected return values, potential errors, or any constraints. The tool lacks annotations and output schema, so the description should compensate but fails to provide essential context.

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%, and the description adds no meaning beyond the bare parameter names 'name' and 'description'. It does not explain the purpose of these parameters, constraints, uniqueness requirements, or how they relate to the creation process.

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 'Create a user group' clearly states the action (create) and the resource (user group). It distinguishes from sibling tools like list_user_groups, get_user_group, update_user_group, and delete_user_group, which are all different operations on the same resource.

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 usage guidance is provided. The description does not specify when to use this tool versus alternatives, any prerequisites, or context such as required permissions. It is a bare description with no guidance on appropriate invocation scenarios.

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