create_group

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

Annotations already indicate a non-read-only, non-destructive operation, but the description adds no additional behavioral context such as permissions requirements, failure conditions, or idempotency. It simply restates the action without revealing any constraints or side effects.

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, concise sentence that is front-loaded with the action and resource, containing zero filler words. It effectively communicates the purpose without unnecessary detail.

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 simple create operation, the detailed schema, and the presence of an output schema, the description is sufficient for an agent to understand the tool's basic purpose. However, it lacks any additional operational context such as uniqueness constraints, prerequisites, or post-creation steps, which would make it fully 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?

The input schema provides complete descriptions for all five parameters, and the description itself offers no extra parameter-level context. Since schema coverage is high, the baseline score of 3 is appropriate, and there is no additional semantics provided.

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 uses the specific verb 'Create' and identifies the resource as 'a new pfSense user group,' clearly distinguishing it from sibling tools that update, delete, or search groups. It is unambiguous and directly states the tool's function.

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 explicit guidance on when to use this tool versus alternatives such as search_groups, update_group, or delete_group. Usage is implied by the name and purpose, but there are no context cues, prerequisites, or exclusion statements to help the agent decide.

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