create_account

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

No annotations are present, so the description carries full responsibility for behavioral disclosure. It reveals that the password is auto-generated and displayed only once, that verification is required before account activation, and that failures return isError results with specific error meanings such as already_exists, rate_limited, and failed.

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 well-structured and front-loaded: action, immediate output warning, verification prerequisite, follow-up API steps, then error handling. Every sentence contributes necessary operational information with no filler.

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?

The description fully covers the account creation flow, including the one-time password display, verification requirement, subsequent API key steps, and detailed failure modes. This is sufficient for an agent to invoke the tool correctly and know what to expect at each step.

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 only parameter, email, is described as 'The user's email address,' which does not add significant meaning beyond the input schema's title. Since schema description coverage is 0%, this minimal description is acceptable but does not enrich the parameter with format, validation, or behavioral constraints.

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?

States a specific verb and resource: create a new Maginary account for an email address. It clearly differentiates itself from sibling tools like check_account_status, manage_api_key, and configure_api_key by defining its role as the account-creation entry point.

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?

Provides explicit workflow guidance: show the returned password once, require email verification before image generation, then use manage_api_key(action='create') followed by configure_api_key. It also tells the agent how to handle the 'already_exists' failure by asking the user for their password or a different email.

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