rhrread

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

The description lists response keys, giving insight into what data is returned, which partially compensates for missing annotations. However, it does not explicitly state that the tool is read-only or mention any rate limits or side effects.

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 includes a redundant parameter list and a lengthy example URL. It could be more concise, though it is structured with clear sections.

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 the tool's simplicity (one optional parameter, no output schema), the description adequately covers the response format and usage example. However, it lacks error handling or rate limit information.

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 covers the single parameter 'lang' with a description. The tool description adds concrete values (en, tc, sc) and a request example, providing richer usage context 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 clearly states this is a current weather report API and lists response keys, indicating it returns comprehensive weather data. However, it does not differentiate from sibling tools that also provide weather data like temperature or wind.

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 vs alternatives. The description provides an example URL but does not specify scenarios where this tool is appropriate or when to choose a sibling tool.

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