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Rank rows by a numeric column

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The highest (or lowest) rows of the PaywallCompass dataset by a numeric column — "which is the most/least X".

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo
columnYes
ascendingNotrue for the lowest first; default highest first

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

B3.1/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says rows are selected by numeric column and direction, but says nothing about what the result contains, what happens when limit or ascending are omitted, tie behavior, or error cases.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single well-structured sentence with the core operation front-loaded and a natural-language usage cue attached. It is lean and avoids repetition, though its brevity contributes to the missing detail noted in other dimensions.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with no annotations and no output schema, the description should explain defaults, limit behavior, and expected result form. It only delivers the core ordering concept and leaves the agent to infer important calling details and sibling-tool trade-offs.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds useful meaning by specifying that 'column' must be numeric and by framing direction with 'highest (or lowest)', which maps to the ascending parameter. However, the 'limit' parameter is not explained, and with only 33% schema description coverage, the description only partially compensates for the schema's gaps.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states that the tool returns the highest or lowest rows of the PaywallCompass dataset based on a numeric column, which is specific enough to identify its core function. It implicitly distinguishes itself from siblings like dataset_search and dataset_stats, but it does not explicitly name them.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The quoted question 'which is the most/least X' implies the intended use case for top-N or bottom-N ranking questions. However, there is no explicit guidance on when not to use this tool or which alternative sibling tool to choose instead.

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

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