user_create

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

With no annotations, the description carries the behavioral burden. It does disclose the return value and the API-only nature of service_user, but it omits important behavioral details like email uniqueness, password handling, required permissions, or side effects beyond creation.

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 structured and front-loaded with 'Create a new user', and the ACL list is useful. However, the duplicate 'ctx' line and the presence of a non-schema ctx parameter make it less clean than it could be.

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 create operation with no annotations and 7 parameters, the description lacks important context such as uniqueness constraints, required parent account context, permission prerequisites, or how this relates to sibling setup tools. The return line is useful, but the overall context is incomplete.

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 is the primary source of parameter meaning. It explains service_user, api_enabled, and provides a full list of acceptable ACL values. The duplicate 'ctx' line and the inclusion of ctx as a parameter when it is absent from the schema slightly reduce the value.

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 'Create a new user' with a specific verb and resource. It does not explicitly differentiate from siblings like user_setup_standard_user or user_setup_service_user, but the create/update/delete family is generally distinguishable.

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 such as user_setup_standard_user or user_setup_service_user. The service_user parameter description hints at one use case, but there is no when-to-use or when-not-to-use guidance.

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