get_nowcast_observation

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

No annotations are provided, so the description carries the full burden for behavioral disclosure. It only states that current observed weather is retrieved, without revealing any details about data source, update timing, units, response format, or potential errors. This lack of transparency is a significant gap for a tool with zero annotations.

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 states the action and object. It is front-loaded and contains no redundant or filler language, making it highly efficient.

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 simple tool with two parameters and an output schema, the core purpose is adequately stated. However, the description lacks usage guidelines and parameter semantics, which would make it more complete. The presence of sibling tools makes the missing usage guidance more notable, but the description is not wholly incomplete.

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 describes 'lon' and 'lat' as numbers with 0% description coverage. The description says '특정 좌표' (specific coordinates), which implies the two parameters are latitude and longitude, but does not add units, format, or range constraints. This minimal addition only partially compensates for the lack of schema-level descriptions.

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 identifies the action ('조회합니다' / retrieves) and the resource ('현재 관측 날씨' / current observed weather) at specific coordinates. It distinguishes itself from sibling forecast tools by explicitly stating '관측' (observation).

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 on when to use this tool versus alternatives. The description does not mention the sibling tools or explain that this is for observational data rather than forecasts. The only inference comes from the tool name, which is not explicit within the description.

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