create_group

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

The description simply states the action and adds no behavioral context beyond what the annotations already provide (readOnlyHint=false, destructiveHint=false, idempotentHint=false, openWorldHint=true). It does not mention return values, duplicate-name handling, or permission requirements, so it adds no value beyond the structured metadata.

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, efficient sentence with no filler words. It is appropriately sized for such a simple tool, even though it is thin on explanatory 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 two-parameter schema and the annotations covering safety traits, the description is minimally sufficient. However, the lack of an output schema and any mention of return values or edge-case behavior leaves a small completeness gap. It is adequate but not thorough.

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 fully documents both parameters (name and description) with clear descriptions, so schema coverage is 100%. The tool description does not add any parameter-level semantics, but the high schema coverage justifies a baseline score of 3.

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 a specific action ('Create') and a specific resource ('agent group'), which is enough to distinguish it from sibling tools like list_groups, get_group, update_group, and delete_group. However, it does not explicitly call out alternatives, so it stops short of a top score.

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 guidance on when to use this tool versus alternatives, no prerequisites, and no mention of checking for existing groups. The intended usage is only implied by the name and the CRUD context of the sibling tools, leaving the agent to infer the right conditions.

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