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

With no annotations, the description carries the full burden of disclosing behavior and safety. It discloses nothing — not whether the tool computes a bounding box, whether it reads external data, whether it mutates anything, or what the output resembles. This is a complete absence of behavioral information.

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 this is under-specification rather than conciseness. Two words of repeated title provide no information and fail to earn their placeholder. Per calibration, 'Process' scored 2; 'Geo Bounding: Geo Bounding' is similarly vacuous.

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 four parameters, no annotations, no output schema, and a geographically ambiguous concept, an agent has virtually no information to call this tool correctly. It cannot know what the tool computes, what inputs are required versus optional, or what the response contains.

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%, so the baseline is 3. However, the parameters descriptions are templated ('Km to process', 'Lat to process') and the tool description adds zero information about how km, lat, lon, and radius relate, their units, or which combinations are valid. The description adds no meaning beyond the 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 is 'Geo Bounding: Geo Bounding' — a pure tautology that merely restates the tool name with no verb, object, or scope. An agent cannot determine what operation is performed, what resource it acts on, or how it differs from sibling geo tools.

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?

No guidance is provided about when to use this tool versus alternatives like x402-geo-distance, x402-geocode, or x402-nearest-city. There is no context, no condition, and no explicit or implied reason to select it.

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