get_weather

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

The description only states what the tool does, not how it behaves. It does not disclose how location is obtained (e.g., IP geolocation, default), whether it requires user consent, rate limits, or what 'short daily forecast' entails. No annotations are provided to compensate.

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, short sentence that efficiently conveys the tool's core purpose. No unnecessary words, and the structure is front-loaded with the key action.

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 zero parameters, no annotations, and no output schema, the description is too minimal. It fails to specify how the location is determined, the format of the output, or any edge cases. The tool's simplicity does not excuse the lack of essential context.

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 input schema has no parameters, so schema coverage is trivially 100%. However, the description says 'for a location', which misleadingly implies a location parameter exists. This contradiction between description and schema lowers the score below the baseline of 3.

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 that the tool retrieves current weather and a short daily forecast. The verb 'Gets' and resource 'weather' are specific. However, the lack of a location parameter in the schema makes it ambiguous how the location is determined, slightly reducing clarity.

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. There are no sibling weather tools, but the description does not mention any prerequisites or context for usage (e.g., internet connection, location permissions).

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