calculate_rpa
Calcula as retenções do RPA (Recibo de Pagamento a Autônomo): INSS de 11% limitado ao teto do mês, IRRF pela tabela progressiva vigente, ISS do município, o líquido do prestador e o custo total da empresa com a patronal de 20%. Aceita reference_date pra refazer um recibo antigo com as tabelas da ...
This record as markdown: /tools/com-falazuki-finance-br/calculate-rpa.md
What calculate_rpa does on FalaZuki Finance BR
AI agents call calculate_rpa to retrieve information from FalaZuki Finance BR without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
iss_rate | number | — | Alíquota de ISS do município do serviço, em % (0 quando o autônomo tem inscrição municipal com ISS fixo) |
dependents | integer | — | Dependentes do prestador, pra dedução do IRRF |
gross_value | number | Yes | Valor bruto do serviço no recibo, em R$ |
reference_date | string | — | Data de referência (aaaa-mm-dd) pra usar as tabelas vigentes NAQUELA data. Omitida, usa as de hoje. |
other_monthly_base | number | — | Base de contribuição que o prestador JÁ usou no mês em outras fontes (CLT, outros RPAs): reduz o teto restante do INSS |
Parameters from the server's own tool schema.
Why calculate_rpa is rated Low
Even though calculate_rpa only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs calculate_rpa safely
PolicyLayer is an MCP gateway: it sits between your AI agents and FalaZuki Finance BR, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For calculate_rpa, this is the rule to start with:
calculate_rpa is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect FalaZuki Finance BR, apply this rule, and every calculate_rpa call is checked against it from then on.
Questions about calculate_rpa
Calcula as retenções do RPA (Recibo de Pagamento a Autônomo): INSS de 11% limitado ao teto do mês, IRRF pela tabela progressiva vigente, ISS do município, o líquido do prestador e o custo total da empresa com a patronal de 20%. Aceita reference_date pra refazer um recibo antigo com as tabelas da época. Parâmetros obrigatórios: gross_value. Opcionais: dependents, iss_rate, other_monthly_base, reference_date. Use exatamente estes nomes, em inglês. It is categorised as a Read tool in the FalaZuki Finance BR MCP Server, which means it retrieves data without modifying state.
calculate_rpa accepts 5 parameters: iss_rate, dependents, gross_value, reference_date, other_monthly_base. Required: gross_value. The full parameter table on this page comes from the server's own tool schema.
Register the FalaZuki Finance BR MCP server in PolicyLayer and add a rule for calculate_rpa: 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 FalaZuki Finance BR. Nothing to install.
calculate_rpa 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 calculate_rpa 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 calculate_rpa. 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.
calculate_rpa is provided by the FalaZuki Finance BR MCP server (https://mcp.falazuki.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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