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

Beyond the annotations, it discloses the full provisioning flow: claim URL, SMS verification, terms acceptance, and self-provisioning of a demo AI agent. It also reveals the dependency on the API key from check_signup_status, giving the agent a realistic model of side effects and required follow-up.

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?

Four sentences, front-loaded with the purpose and condition, then compactly covering the return value, the claim flow, follow-up, and downstream dependency. Every sentence earns its place.

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?

Despite having no output schema, the description explains both return artifacts (claim URL and intentToken), what to do with them, and how they connect to check_signup_status. For a 5-parameter, 2-required tool, this is complete enough for an agent to invoke it correctly.

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 100% and each parameter is already documented. The description adds some context around the website being used for the demo agent, but that is already stated in the schema; there is no meaningful new parameter-level meaning.

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 states a specific verb and resource: 'Begin setting up Canarics' for a company with no account yet, and names the unique deliverable, a claim URL. This clearly differentiates it from the sibling check_signup_status, which is for tracking progress.

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?

It explicitly frames the trigger condition ('for a company that has no account yet') and explains that all other Canarics tools need the API key obtained later from check_signup_status. It does not explicitly say what to do if an account already exists, but the context makes this the clear entry point.

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