create_rental_unit

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

With no annotations provided, the description carries full burden, but it only says 'Create a new rental unit.' It discloses no side effects, required permissions, validation rules, or behavior for edge cases (e.g., duplicate units).

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 extremely brief and front-loaded, which is good for conciseness, but it is so underspecified that it fails to provide useful structure or context. It's a single sentence that only restates the tool's name.

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?

Given the complete absence of annotations, a free-form parameter with no schema description, and a rich set of sibling tools, this description is grossly inadequate. It provides no information about required fields, expected response, or how this tool fits into the broader workflow.

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?

The input schema has a single free-form object 'unit_data' with additionalProperties true and 0% schema description coverage. The description fails to explain what fields or structure unit_data should have, leaving the parameter completely ambiguous.

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 uses a specific verb 'Create' and identifies the resource as 'rental unit', which is distinct from sibling create tools like create_rental and create_association_unit. However, it doesn't explicitly elaborate on the scope or nuance of a 'rental unit', so it's clear but not fully differentiated.

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 provides no guidance on when to use this tool versus alternatives such as create_rental or create_association_unit. There are no contextual signals or prerequisites mentioned, leaving the agent to infer usage.

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