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Rank rows by a numeric column

dataset_top

The highest (or lowest) rows of the Laser Materials Compare 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

B3.2/5.0
Behavior2/5

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

With no annotations, the description carries the full behavioral burden. It implies a read but never says so, and omits tie-breaking behavior, what happens when the named column is non-numeric, and the 50-row cap on results. Only the default sort direction is conveyed, and that is already in the schema.

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?

A single front-loaded sentence with no filler, and the operation leads. The em dash aside adds the usage gloss compactly, though the trailing quoted fragment is slightly awkward.

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

Completeness3/5

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

No annotations and no output schema, so the description must cover more than it does. It gets the core operation across but leaves result shape, ordering ties, and limit behavior to inference.

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?

Schema description coverage is 33%, so the description must compensate and only partly does: it explains column ('by a numeric column') and ascending ('highest (or lowest)'), but says nothing about limit, the one parameter with a hard 1-50 constraint worth flagging.

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?

States a specific operation (return the highest/lowest rows) on a specific resource (the Laser Materials Compare dataset) qualified by a numeric column. It reads clearly against siblings like dataset_row or dataset_stats, though it never names an alternative to disambiguate.

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 gloss 'which is the most/least X' implies the intended question type, giving implied usage. There is no explicit when-to-use, no mention of when dataset_stats or dataset_search would be preferable, and no stated prerequisites.

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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