balena_create_fleet

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

Annotations already indicate readOnlyHint=false, idempotentHint=false, and destructiveHint=false. The description adds no further behavioral context beyond the act of creation, such as side effects, naming constraints, permission requirements, or behavior on duplicate names. There is no contradiction with annotations, but no added transparency either.

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?

A single clear sentence with no redundant words. The core operation and main parameters are front-loaded, making it easy to parse quickly.

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 simple create operation with three required parameters, the description covers the essentials, and annotations supply the safety profile. However, it does not describe what the API returns, how errors might surface, or any uniqueness/validation behavior, and there is no output schema to fill that gap.

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 0%, so the description must compensate. It partially does by clarifying that 'organization' and 'device_type_id' refer to the organization and device type of the new fleet, and 'name' is the fleet name. However, it stops short of fully defining each parameter's semantics or constraints, leaving some inference to the agent.

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 ('Create'), a resource ('fleet'), and the two key scoping dimensions ('in an organization', 'for a device type'). This clearly distinguishes the tool from sibling operations like balena_get_fleet, balena_list_fleets, balena_rename_fleet, and balena_delete_fleet.

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 gives no guidance on when to use this tool versus alternatives, nor does it mention any exclusions or prerequisites such as checking existing fleets. The only usage signal is the verb 'Create', which implicitly suggests use for new fleets but never explicitly addresses alternatives.

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