Create a Webex user

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

Annotations already declare a mutating, non-idempotent, non-destructive, open-world operation, so the safety profile is covered. The description adds nothing beyond the HTTP endpoint: no note on required permissions, side effects (e.g., automatic licensing or number provisioning), duplicate-email behavior, or what a retry would do given idempotentHint=false.

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?

Two short sentences with zero filler and the core action front-loaded. Nothing is wasted, though the brevity reflects under-specification rather than disciplined editing.

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 an 8-parameter mutation tool with no output schema, the description omits what the response looks like (e.g., created user ID), what the optional package/location/phone fields do, and any post-creation steps. Annotations cover only the safety profile, leaving real behavioral gaps.

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 even though the description says nothing about parameters. The schema labels are thin ('Body field package.'), so the description could have clarified the meaning of the 'package' enum values or how phone_number/extension interact, but it does not.

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 restates the tool name and title almost verbatim ('Create a Webex user'), adding only the underlying endpoint (POST /webex/users). It offers no differentiation from closely related siblings such as placetel_create_user, placetel_list_webex_users, or placetel_assign_webex_user_license, so an agent cannot tell which creation path applies.

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 statement of when this tool should be used instead of placetel_create_user or the license-assignment tools, and no prerequisites (e.g., whether a license or package must exist first) are mentioned. Usage is only inferable from the verb 'Create'.

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