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

With no annotations, the description carries the full burden of behavioral disclosure. It states the tool returns the highest or lowest rows, implying sorting and limiting. However, it does not disclose output format, error behavior, or edge cases like ties or non-numeric columns. It is a basic but non-contradictory disclosure.

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 sentence, front-loaded with the core idea. It is concise and free of fluff, earning its place. There is no unnecessary 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 simple ranking tool, the description provides the essential purpose but omits details like return format and any caveats. With no output schema and low parameter coverage, the agent may not know what to expect in the response. It is adequate for basic use but not fully complete.

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 only 33% (only 'ascending' has a description). The tool description does not explain the 'limit' or 'column' parameters beyond what the schema already provides. It implies ascending via 'highest/lowest' but does not explicitly link it to the parameter. Given the low coverage, the description should compensate but does not.

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 the tool ranks rows of the Runwayze dataset by a numeric column to answer 'which is the most/least X'. This distinguishes it from siblings like dataset_row (single row) and dataset_search (search). It names the resource and the verb, making the purpose specific. However, it does not explicitly contrast with dataset_stats, but the intent is clear enough.

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?

There is no guidance on when to use this tool versus alternatives. The description does not mention any scenarios, exclusions, or alternative tools. An agent has to infer that this is for ranking rows, but there is no explicit when-to-use or when-not-to-use context.

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