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 only states the basic ranking behavior and does not cover edge cases like ties, null values, ordering stability, or whether the operation is read-only. It also omits any mention of potential side effects or prerequisites.

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 purpose and a clarifying quote. It is concise and to the point, though it could benefit from a brief note on default parameters without sacrificing brevity.

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 tool with three parameters and no output schema, the description leaves important gaps: no default limit, no indication of return format, and no discussion of edge cases like ties or missing values. The description is too sparse to fully guide an agent through correct invocation without additional 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?

Schema description coverage is only 33% (only 'ascending' has a schema description). The tool description adds minimal parameter context—'numeric column' hints at column type but does not explain 'limit' or default behavior, nor does it clarify the exact meaning of 'ascending' beyond the schema. The description does not compensate for the low schema coverage.

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 by a numeric column and returns the highest or lowest rows, distinguishing it from sibling tools like dataset_stats (aggregates), dataset_search (filtering), and dataset_row (single row). The phrase 'which is the most/least X' provides a concrete use case.

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 explicit guidance on when to use this tool versus alternatives. The description implies a use case (ranking top/bottom rows) but does not mention when not to use it or point to specific sibling tools, leaving the agent to infer the appropriate context.

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