create_user

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

Annotations are absent, so the description's note 'Disabled in read-only mode' carries some weight, indicating this is a write operation with a runtime constraint. However, it doesn't disclose permissions required, idempotency, or effects on existing users, leaving significant behavioral context unexplained.

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, front-loaded with the main purpose. The read-only constraint is a useful behavioral note and the description does not waste words.

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 presence of an output schema and fully described parameters, the description provides the core purpose and a behavioral constraint. It lacks alternative usage and deeper side-effect disclosure, but for a moderate-complexity tool it is reasonably complete.

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?

The input schema provides descriptions for both developer_id and the user object (including fields like email, permissions, expirationTime, grants), achieving 100% coverage. The description adds no additional parameter semantics beyond what the schema already specifies.

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?

Description states 'Grant a user access to a developer account' – a specific verb (grant) and resource (user access to developer account). It clearly distinguishes from sibling tools like update_user and delete_user, and the tool name create_user clarifies it's about creating credentials.

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 explicit when-to-use or alternative references. The description only states the core action; it doesn't mention situations where this tool should be preferred over create_grant or other account tools, nor does it list exclusions. Usage is implied by the verb, but no guidance is provided.

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