create_group

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

With no annotations, the description carries the full behavioral burden. It usefully discloses that this is a mutation, supports Security/Distribution types and Global/DomainLocal/Universal scopes, and fails on duplicate names, but it omits permission requirements, reversibility, and what happens on failure beyond the duplicate case.

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 front-loaded with the core action and then adds scope/type support, an example, and the duplicate-name failure. It is appropriately sized, though the second sentence slightly repeats the first and the example could be tighter.

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 7-parameter mutation tool with no annotations and no output schema, the description covers the main semantics and failure mode. However, it does not address permissions/authentication needs or return behavior, leaving meaningful gaps for an agent invoking a privileged Active Directory write operation.

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 100%, so the baseline is 3, but the description adds an example showing how group_name, group_scope, group_type, and description are used together. It does not explain ou, display_name, or additional_attributes beyond the schema, so it is helpful but not complete.

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 a specific verb and resource: create a new Active Directory group. It distinguishes the operation from siblings like modify_group, delete_group, and list_groups by emphasizing creation and the duplicate-name failure condition.

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 implies when to use it by stating it creates a new group and fails if the group already exists, but it does not explicitly direct the agent to modify_group for existing groups or list_groups/get_group to check existence. The example helps with invocation but not with alternative selection.

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