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Summary statistics for a numeric column

dataset_stats

count, min, max, mean, median and sum of a numeric column of the Extinvo dataset (grouping commas and currency are handled; non-numeric rows are excluded and counted).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
columnYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4/5.0
Behavior4/5

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

With no annotations present, the description carries the behavioral disclosure burden. It usefully discloses that grouping commas and currency symbols are handled, and that non-numeric rows are excluded and counted. It does not mention error cases or output structure, but the read-only nature of statistics is clear from the content.

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

Conciseness5/5

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

The description is a single dense sentence with no filler. It front-loads the computed statistics and adds relevant handling details about commas, currency, and non-numeric rows without redundancy.

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

Completeness4/5

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

For a simple one-parameter tool, the description covers the core purpose, the target dataset, the list of metrics, and important input quirks. It lacks explicit output format and behavior when the column is missing or entirely non-numeric, but these are minor gaps given the tool's simplicity.

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 coverage is 0%, so the description must clarify the parameter. It does indicate that 'column' refers to a numeric column of the Extinvo dataset, but it does not explain how column names are specified or how to discover valid columns. The single parameter is simple, but the lack of format details leaves some ambiguity.

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

Purpose5/5

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

The description clearly specifies the tool's function: computing count, min, max, mean, median and sum for a numeric column. It names the exact dataset (Extinvo) and distinguishes itself from siblings like dataset_search or dataset_top by focusing on summary statistics for a single numeric column.

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 usage context is implied rather than explicit: an agent can infer this tool is for summarizing a numeric column. However, the description does not state when to use this tool over siblings such as dataset_top or dataset_columns, nor does it provide exclusion criteria or alternatives.

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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