calcular_intercambio_acumular_divisas

WHAT IT DOES

What calcular_intercambio_acumular_divisas does on Contaí — Calculadoras Fiscais Brasileiras

AI agents call calcular_intercambio_acumular_divisas to retrieve information from Contaí — Calculadoras Fiscais Brasileiras without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

PARAMETERS

Parameter	Type	Required	Description
`moedaAlvo`	string	—	Moeda alvo para acumulação: USD \| EUR
`currentDate`	string	—	Data de referência YYYY-MM-DD para tabelas fiscais (INSS/IRRF/IOF/etc.). Default: hoje.
`metodoCompra`	string	—	Método de compra da moeda: pix_transferencia \| cartao_credito_internacional \| papel_moeda_corretora
`metaUsdEurCents`	integer	Yes	Meta na moeda alvo em centavos. Ex: USD 5.000 = 500000
`mesesAteIntercambio`	integer	Yes	Meses restantes até o intercâmbio (1 a 60)
`cambioAtualBrlPorMoeda`	number	Yes	Câmbio atual em BRL por unidade da moeda alvo. Ex: 5.20 para USD
`taxaInvestimentoBrlPercentAA`	number	—	Taxa de investimento em BRL (CDI/Selic) em % ao ano durante a acumulação. Default 12.
`inflacaoCambialEsperadaAnualPercent`	number	—	Inflação cambial esperada anual em % (depreciação do BRL). Default 4.

Parameters from the server's own tool schema.

WHY IT NEEDS A POLICY

Why calcular_intercambio_acumular_divisas needs a policy

The tool performs read-only calculations estimating monthly savings needed to reach a currency exchange goal, accounting for IOF rates and BRL yield. It returns computed projections only — no money movement, no data mutation, no external operations are triggered. This is a pure calculation/advisory tool, categorized as Read.

From the tool's definition 'Quanto aportar mensalmente em BRL para chegar à meta em USD/EUR' — purely a financial planning calculator that returns projected figures (aporteMensalBrlCents, totalNecessarioCents, iofTotalEstimadoCents, cambioFuturoEstimado, metaBrlNominalCents,…

Attacks that exploit this kind of access

Questions about calcular_intercambio_acumular_divisas

What does the calcular_intercambio_acumular_divisas tool do? +

Quanto aportar mensalmente em BRL para chegar à meta em USD/EUR no intercâmbio. Considera inflação cambial, IOF (cronograma 2024-2029) e rendimento BRL durante a acumulação. Retorna: aporteMensalBrlCents, totalNecessarioCents, iofTotalEstimadoCents, cambioFuturoEstimado, metaBrlNominalCents, recomendacaoCompraEscalonada. It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.

What parameters does calcular_intercambio_acumular_divisas accept? +

calcular_intercambio_acumular_divisas accepts 8 parameters: moedaAlvo, currentDate, metodoCompra, metaUsdEurCents, mesesAteIntercambio, cambioAtualBrlPorMoeda, taxaInvestimentoBrlPercentAA, inflacaoCambialEsperadaAnualPercent. Required: metaUsdEurCents, mesesAteIntercambio, cambioAtualBrlPorMoeda. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on calcular_intercambio_acumular_divisas? +

Register the Contaí — Calculadoras Fiscais Brasileiras MCP server in PolicyLayer and add a rule for calcular_intercambio_acumular_divisas: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Contaí — Calculadoras Fiscais Brasileiras. Nothing to install.

What risk level is calcular_intercambio_acumular_divisas? +

calcular_intercambio_acumular_divisas is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit calcular_intercambio_acumular_divisas? +

Yes. Add a rate_limit block to the calcular_intercambio_acumular_divisas rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block calcular_intercambio_acumular_divisas completely? +

Set action: deny in the PolicyLayer policy for calcular_intercambio_acumular_divisas. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides calcular_intercambio_acumular_divisas? +

calcular_intercambio_acumular_divisas is provided by the Contaí — Calculadoras Fiscais Brasileiras MCP server (@contai-evoluke/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.