add_user

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

The description does state that this adds a user, which clearly implies mutation, but with no annotations provided the description carries the full burden of behavioral disclosure. It does not explain whether the operation is idempotent, what side effects occur, what permissions are required, or what happens on duplicate or invalid input.

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 a single efficient sentence with no filler. It is concise, though it achieves conciseness by omitting information that other dimensions need; as a pure conciseness measure this is acceptable.

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 tool with two required parameters, one of which is undocumented and a free-form nested object, the description is far too thin. An output schema exists, so the description need not cover return values, but it still leaves crucial invocation details, especially the meaning of zoid and the expected shape of user_data, entirely unspecified.

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%, and the description adds no meaning to the parameters. 'zoid' is left entirely unexplained, and 'user_data' is a free-form object with no structure or example, so an agent has no way to construct a valid call beyond guessing.

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 names a specific verb ('Add'), a specific resource ('user'), and a target scope ('to organization'). It is clear enough to understand the core operation, but it does not differentiate from sibling tools such as add_child_organization or get_all_users, so an agent would need extra inference to know exactly which operation is intended.

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 about when to use this tool versus alternatives. The description does not mention exclusions, prerequisites, or related tools, leaving the agent to guess whether this is the right operation for a given user-management task.

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