create_group

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It implies a write operation via 'Create' and explains the functional purpose of groups, but it does not state side effects, required permissions, uniqueness constraints, or what happens if invalid user_ids are passed. This is a moderate disclosure, enough to infer basic behavior but lacking depth.

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, front-loaded with the main verb and resource, and presents the Args in a clean list. Every sentence earns its place: the conceptual explanation adds value, and the parameter descriptions are direct. No filler or redundancy.

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 two parameters and an output schema, this description is fairly complete. It covers the tool's purpose, the value of groups, and the meaning of each parameter. It does not discuss return values (though an output schema exists) or potential error conditions, but these are not critical for a create operation of this simplicity.

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 for missing parameter details. The Args section explains 'name: group name' and 'user_ids: initial members' IDs (optional), which adds meaning beyond the raw schema. The explanation is helpful, though 'name: group name' is somewhat tautological; the user_ids description is more informative.

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 'Create a user group', a specific verb+resource pair that clearly distinguishes this from sibling tools like list_groups, update_group, and delete_group. It also adds conceptual context by explaining that a group grants permissions to multiple people at once, reinforcing its unique role.

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 clear context for when to use this tool: to create a group that can then be added as a project member, with members inheriting roles. It does not explicitly exclude alternatives like add_user_to_group, but the context is sufficient for a simple create operation. No positional guidance is given, but the context is clear.

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