user_create

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

With no annotations provided, the description carries the full burden. It mentions returning a confirmation on success, but lacks critical behavioral context for a creation tool: error handling for duplicate emails, whether the operation is idempotent, authorization requirements, or if the created user is immediately active.

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 efficient sentences with no redundancy. The first sentence front-loads the core action and required fields; the second clarifies the success response. 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?

Given the sensitivity of user creation and complete lack of annotations/output schema, the description should provide more safety context (e.g., 'fails if email exists', 'requires admin role'). It documents fields adequately but leaves operational 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?

With zero parameters defined in the schema, the baseline is 4. The description adds significant value by explicitly listing the expected fields (id, firstName, lastName, email, password) that the schema omits, effectively compensating for the empty schema definition.

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 clear resource ('Operaton user account'), and distinguishes from sibling tools like user_updateProfile by explicitly mentioning credentials (password) and profile fields, indicating this is for initial accountsetup.

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 no guidance on when to use this tool versus alternatives like user_updateProfile or prerequisites (e.g., admin privileges, checking for existing users). It purely states functionality without contextual selection criteria.

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