Create a new vehicle

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

The annotations already signal a non-read-only, non-idempotent, non-destructive operation, and the description only restates that it creates a vehicle. It adds no behavioral detail beyond the annotation surface, such as owner-tier validation, idempotency-key behavior, or what a successful creation returns.

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 short but redundant: Create a new vehicle repeats the title and name, and Creates a vehicle for the business fleet restates the same idea with only a small amount of added context. Both sentences do not earn their 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?

The input schema and annotations carry most of the contextual load, making the tool callable with minimal risk. However, the prose leaves out return-value behavior and high-level side-effect or ownership guidance, so the definition is adequate but not complete.

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 89% and the individual parameter descriptions are rich, with examples, constraints, requiredness, and domain notes. The tool description itself adds no parameter-level meaning, so it lands at the schema-heavy baseline without exceeding it.

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 action, create, and a specific resource, vehicle, and adds the business fleet scope, so an agent can distinguish it from delete/get/list vehicle tools. The first sentence repeats the title, but the body still communicates the intended operation clearly.

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?

There is no when-to-use guidance and no mention of alternatives. The description implies adding a vehicle to the fleet, but it does not explain when createVehicle is appropriate versus related operations such as replaceTechnicianVehicles or updateTechnician, even though some of those distinctions exist in parameter notes.

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