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

The description is minimal and does not disclose behavioral traits such as the conversion factor, precision, or handling of edge cases. Given the absence of annotations, the description carries the burden but for a simple mathematical conversion, it is acceptable. An output schema exists but is not shown, which could clarify return format.

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 a single, concise sentence that immediately conveys the tool's functionality. No superfluous words or information, ensuring efficient communication.

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 tool's simplicity, high schema coverage, and the presence of an output schema, the description is sufficiently complete. It could optionally mention the conversion factor or note about precision, but the essentials are covered.

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% (the single parameter is described as 'Area in square meters'). The tool description adds no additional meaning beyond the schema, meeting the baseline expectation for a fully covered schema.

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 'Convert square meters to square feet' uses a specific verb and resource, clearly stating the conversion direction. It effectively distinguishes the tool from its sibling 'square_feet_to_square_meters' and other converters.

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?

While no explicit when-to-use or alternative guidance is provided, the tool's name and description unambiguously indicate its purpose for square meters to square feet conversion. The sibling tool names make the reverse conversion obvious, so usage is implied without confusion.

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