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AiAgentKarl

eu-company-mcp-server

eu_gdp

Retrieve GDP data for EU countries from Eurostat. Query country codes and years to get economic output values in millions of euros for European market analysis and business research.

Instructions

BIP (Bruttoinlandsprodukt) für EU-Länder abrufen.

Quelle: Eurostat. Werte in Millionen Euro.

Args: countries: Ländercodes mit Semikolon getrennt (z.B. "DE;FR;IT") years: Jahre mit Semikolon getrennt (z.B. "2022;2023")

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
countriesNoDE;FR;IT;ES
yearsNo2022;2023
Behavior3/5

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

Discloses data source (Eurostat) and units (Millions of Euros), but lacks information on error handling, rate limits, or data freshness.

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?

Well-structured with purpose front-loaded, followed by metadata and Args section; appropriately concise 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?

Adequate for the tool's low complexity (2 simple parameters, no output schema), covering essential usage context despite missing return value description.

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

Parameters5/5

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

Excellent compensation for 0% schema coverage by detailing delimiter format (semicolon-separated) and providing concrete examples for both parameters.

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?

Clearly states it retrieves GDP (BIP) for EU countries with specific verb and resource, distinguishing it from sibling economic indicators like eu_inflation and eu_unemployment.

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

Usage Guidelines2/5

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

Provides no explicit guidance on when to use versus alternatives, or limitations like data availability lags for recent years.

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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