create_address_fqdn

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

With no annotations provided, the description carries the full burden. It discloses that FQDN addresses are resolved dynamically, which is a key behavioral trait. However, it omits details on permissions, side effects, or return value behavior beyond the schema.

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-organized with a docstring structure: summary, behavioral note, Args, Returns, and Example. Every sentence adds value, and it is appropriately sized with no wasted words.

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 tool has an output schema, and the description includes the return structure. It also mentions dynamic resolution behavior. For a create function, this covers essential context, though error handling and prerequisites are not addressed.

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 lists all parameters with brief explanations, e.g., fqdn: 'Domain name (e.g., "www.example.com")'. This adds meaningful context beyond the raw schema property types.

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 clearly states the action ('Create an FQDN ... address object') and the resource (FQDN address object). Among siblings like create_address_host and create_address_subnet, it uniquely identifies its focus on fully qualified domain names.

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 notes that FQDN addresses are resolved dynamically, which guides when to use this tool. It provides a concrete example but does not explicitly contrast with alternatives or list when not to use it.

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