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resolve_country_group_membership

Resolve a country group code or name to its list of ISO3 member countries. Accepts canonical codes, World Bank region codes, and common spellings.

Instructions

Resolve a curated group code to its ISO3 member list.

Accepts canonical codes (LAC, SSA, LDC, OECD, …), official WB region codes (LCN, SSF, …), and common spellings ("Latin America and Caribbean", "Sub-Saharan Africa", "Least Developed Countries").

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
groupYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

With no annotations, the description carries the behavioral transparency burden. It discloses that the tool accepts various input formats and resolves to an ISO3 member list, implying a safe read operation. However, it does not mention error handling (e.g., if group not found) or output format, which is good but not exhaustive.

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 concise with two sentences. The first sentence states the core action; the second lists input variants. No redundant words, and the structure is clear and front-loaded.

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?

Given the tool's simplicity (one parameter, output schema exists), the description is mostly complete. It covers the main function and acceptable inputs. It could briefly note that the output is a list of ISO3 codes, but the output schema presumably handles that. Minor gap: no mention of validation or error cases.

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?

The input schema has a single required 'group' parameter with no description (0% coverage). The description compensates fully by listing acceptable formats: canonical codes (LAC, SSA, LDC, OECD), official WB region codes (LCN, SSF), and common spellings. This adds significant semantic meaning for an AI agent.

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 states the tool's purpose: 'Resolve a curated group code to its ISO3 member list.' It uses a specific verb and resource, and distinguishes itself from sibling tools like list_curated_country_groups (which lists groups) and compare_countries (which compares countries).

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 description implicitly suggests usage by listing accepted input types (canonical codes, official WB region codes, common spellings), but does not explicitly state when to use this tool versus alternatives or provide exclusions. No when-not-to-use guidance is given.

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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