register_acme_account

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

No annotations are provided, so the description alone must disclose behavioral traits. It only says 'Register', which indicates creation but does not mention side effects, idempotency, error handling, or permission requirements. The description adds minimal value beyond the tool name.

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 concise—one short sentence plus parameter list—and front-loaded with the core purpose. However, it could be more structured with explicit purpose and usage sections, and the parameter descriptions are terse.

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 tool has 4 parameters, 0% schema coverage, and an output schema (unseen), the description omits return value information and any behavioral context beyond creation. It is sufficient for a simple registration but lacks completeness for a full understanding.

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 0% schema description coverage, the description compensates by briefly explaining each parameter: contact email, directory URL (defaults to Let's Encrypt), name, and TOS URL. This adds meaning beyond the schema's basic titles, though more detail on constraints or formats would improve.

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 'Register a new ACME account', specifying the action (registering) and resource (ACME account). It distinguishes from sibling tools like list_acme_accounts, get_acme_account by indicating a create operation.

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 lists parameters but does not provide guidance on when to use this tool vs alternatives. It implies use for creating an account, but lacks explicit when-to-use, prerequisites, or comparison with other ACME tools.

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