register_domain

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

No annotations are provided, so the description bears full responsibility for behavioral transparency. It only states 'Register a new domain' without disclosing whether the operation creates a resource, requires authentication, has side effects, or any rate limits. The bare minimum is conveyed.

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 extremely concise (one sentence) but lacks substance. It under-specifies the tool's behavior and fails to provide necessary context, making it more under-specification than effective conciseness.

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 complexity (12 parameters, nested objects, no output schema, no annotations), the description is inadequate. It does not explain return values, prerequisites, or any post-conditions. A more detailed description is needed for an AI agent to use this tool confidently.

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 high (92%), and the input schema already describes most parameters adequately. The description adds no additional meaning or constraints beyond the schema. Baseline 3 is appropriate as the description does not compensate for any low coverage areas.

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 the action ('Register') and the resource ('a new domain'), making the purpose apparent. However, it does not explicitly distinguish from siblings like 'check_domain' or 'update_contact', though the verb 'register' is distinct enough.

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 implies usage context (when you want to register a domain) but provides no explicit guidance on when to use this tool versus alternatives like 'check_domain' for availability checks. No exclusions or prerequisites are mentioned.

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