Create an AIR account

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

Annotations already declare the write/destructive/open-world profile, so the bar is lower; the description adds real context annotations cannot express — that a form is rendered in-conversation, the person supplies their own details, and the model contributes nothing. It does not say what happens after the form completes, which holds it back from a 5.

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?

Three short clauses, front-loaded with the action, and every clause carries information the agent needs (mechanism, who supplies data, precondition). 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?

For a no-param, no-output-schema tool the description is nearly sufficient. The one missing piece is the outcome — whether the tool blocks until the form is submitted, returns a pending handle, or completes synchronously — which matters for an agent orchestrating a conversation.

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?

Zero parameters, so the baseline is 4. The description reinforces this by stating 'the model supplies nothing,' confirming the agent should pass no arguments.

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 ('Open a form ... to create an AIR account') and clarifies the mechanism, which is what separates it from sibling create tools like air_create_project. An agent can immediately tell this is an interactive, human-driven flow rather than a data-submitting call.

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?

'Needs no existing account' supplies the key precondition for use, which is helpful. However, it gives no explicit alternatives despite the presence of air_signup_send_code and air_signup_verify_code siblings, leaving the agent to infer which account-creation path to pick.

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