Calcula contribuição INSS facultativo (autônomo, dona de casa, estudante, MEI complementar). 3 planos: baixa_renda (5% SM, só CadÚnico), simplificado (11% SM, sem aposentadoria por tempo), completo (20% sobre base, todos os benefícios). Retorna contribuição mensal/anual + benefícios + restrições ...
AI agents call calcular_inss_facultativo 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.
| Parameter | Type | Required | Description |
|---|---|---|---|
plano | string | Yes | baixa_renda_5: 5% SM (R$ 75,90 em 2026) — só donas de casa CadÚnico. simplificado_11: 11% SM (R$ 167) — sem aposentadoria por tempo. completo_20: 20% sobre base |
currentDate | string | — | Data de referência YYYY-MM-DD para tabelas fiscais (INSS/IRRF/IOF/etc.). Default: hoje. |
baseContribuicaoCents | integer | — | Apenas plano "completo": valor da base entre 1 SM e teto INSS, em centavos. Default 1 SM. |
Parameters from the server's own tool schema.
This is a pure calculation tool that computes INSS (Brazilian social security) contribution amounts for voluntary contributors under different plan tiers. It retrieves and presents calculated financial information (contribution amounts, benefits, restrictions) based on input parameters.
From the tool's definition Tool description states it 'Calcula' (calculates) and 'Retorna' (returns) contribution amounts and benefits information.
Attacks that exploit this kind of access
Calcula contribuição INSS facultativo (autônomo, dona de casa, estudante, MEI complementar). 3 planos: baixa_renda (5% SM, só CadÚnico), simplificado (11% SM, sem aposentadoria por tempo), completo (20% sobre base, todos os benefícios). Retorna contribuição mensal/anual + benefícios + restrições do plano. Fonte: Lei 8.212/91 art. 21 + Decreto 3.048/99. It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.
calcular_inss_facultativo accepts 3 parameters: plano, currentDate, baseContribuicaoCents. Required: plano. The full parameter table on this page comes from the server's own tool schema.
Register the Contaí — Calculadoras Fiscais Brasileiras MCP server in PolicyLayer and add a rule for calcular_inss_facultativo: 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.
calcular_inss_facultativo is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the calcular_inss_facultativo 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.
Set action: deny in the PolicyLayer policy for calcular_inss_facultativo. 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.
calcular_inss_facultativo 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.
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