get_density_area

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

With no annotations provided, the description carries full burden. It correctly describes an idempotent read operation returning fixed data from Censo 2022. However, it omits details like data freshness guarantee, rate limits, or that no side effects occur. The lack of behavioral depth is acceptable given zero parameters.

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?

Single sentence with no wasted words. Instantly conveys purpose and data source. Front-loaded with key information.

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?

For a zero-parameter tool with no output schema, the description is adequate but not thorough. It states the data and source, but could explicitly note that it returns a single city-wide value and is safe to call without arguments. No mention of return format or example.

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?

Tool has zero parameters and the schema coverage is 100% (empty). Per guidelines, baseline is 4 when no parameters exist. The description adds no parameter-specific info because none are needed.

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 it obtains demographic density and total territorial area for Natal (Censo 2022). The verb 'obtém' and specific resource are well-defined. However, it does not differentiate from sibling tools like get_neighborhood_demographics or get_total_population, which could cause confusion.

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 on when to use this tool versus alternatives. Among 15 siblings covering various demographic and geographic data, the description does not specify that this tool provides city-level density and area, not neighborhood-level. The 'when to use or avoid' is entirely implicit.

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