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cotacao_leite

Get milk producer prices by state in Brazil. Returns CEPEA data for RS, SC, PR, SP, MG, GO, BA, RJ, ES, or national average.

Instructions

Retorna o preço ao produtor de leite (CEPEA) por estado.

Fonte: Notícias Agrícolas / CEPEA. Estados disponíveis: RS, SC, PR, SP, MG, GO, BA, RJ, ES, Brasil (média nacional).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
estadoNoSigla do estado (ex.: 'GO', 'MG', 'SP') ou 'Brasil'. Padrão: 'Brasil'.Brasil

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations are provided, so the description must fully disclose behavioral traits. It mentions the data source (CEPEA) and states, but lacks details on access restrictions, data freshness, update frequency, or whether the operation is read-only. As a price lookup, it is presumably safe, but this is not explicitly stated.

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 extremely concise: two sentences and a list. It is front-loaded with the main purpose and then provides supporting information. Every sentence is relevant and earns its place.

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 low complexity (single parameter) and the presence of an output schema, the description adequately covers source and available states. It could mention the return format or data type, but that is handled by the output schema. The description is complete enough for a simple lookup tool.

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

Parameters4/5

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

Schema coverage is 100% for the single parameter 'estado', with a good description including default and examples. The tool description adds value by listing all valid states explicitly, which goes beyond the schema's individual examples. This helps the agent fill the parameter correctly.

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 explicitly states 'Retorna o preço ao produtor de leite (CEPEA) por estado.' This is a specific verb ('retorna') and resource ('preço ao produtor de leite') with a clear scope ('por estado'). It readily distinguishes from sibling tools like 'cotacao_boi_gordo' or 'cotacao_milho' which deal with different commodities.

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 provides a list of available states and the data source, but does not offer explicit guidance on when to use this tool versus alternatives, nor does it mention any conditions or prerequisites. The usage is implied by the commodity name, but no exclusions or comparative advice are 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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