area_convert

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

The only behavioral disclosure is the cost ($0.001 USDC via x402), which is useful but minimal. With no annotations, the description fails to convey other important traits like required parameters or operational behavior.

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 not structured or informative. It borders on under-specification rather than concise precision, omitting essential details.

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?

With a generic schema, no output schema, and no annotations, the description is far too sparse to support correct tool selection and invocation. It lacks parameter guidance, usage context, and operational details.

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 schema has a single generic 'params' object with no defined properties. The description says nothing about what fields are needed (e.g., value, from_unit, to_unit), leaving the agent without any invocation details.

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 restates the tool name ('area convert') and adds the generic category 'Converters tool.' It implies area conversion but does not state a clear verb+resource action, making it mostly tautological.

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 guidance on when to use this tool versus the many sibling conversion tools (e.g., convert_units, convert_currency). No context or exclusions are provided.

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