create_user_group

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

No annotations are provided, so the description carries the full burden of behavioral disclosure, yet it only states the basic mutation and says nothing about duplicate-name handling, idempotency, reversibility, required permissions, or return content. The 'bandwidth limits' phrase restates parameter intent, not runtime behavior.

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?

One sentence with the verb front-loaded and no filler words. 'Create' states the action, 'new user group' the resource, and 'with bandwidth limits' the relevant parameters — every word earns its place.

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?

The flat 3-parameter schema is fully documented and the purpose is clear, but with no annotations, no output schema, and no disclosure of return values, duplicate-name behavior, or error conditions, an agent cannot anticipate failure modes or verify that creation succeeded. For a mutating tool, this is a significant operational gap.

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 coverage is 100%, so the schema already documents all three parameters (name, up, down) with units and the -1 unlimited sentinel. The description's 'bandwidth limits' adds no meaning beyond what the schema provides, leaving the score at the baseline 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 uses a specific verb ('Create') and resource ('user group'), with 'with bandwidth limits' previewing the up/down parameters. The action is unambiguous within a sibling list dominated by get/list/set tools, though it does not explicitly name or rule out related siblings like set_client_user_group.

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 guidance is given on when to use this tool versus alternatives — there are no prerequisites, exclusions, or references to sibling tools like list_user_groups for inspection or set_client_user_group for assigning users. The only usage signal is the verb 'create,' which is implied rather than stated as a decision rule.

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