Calcula ITCMD (imposto sobre transmissão causa mortis e doação). Tributo estadual com alíquotas que variam por UF (SP=4%, RJ progressivo 4-8%, etc.). Devido na herança/inventário e na doação. Considera isenções como cônjuge sobrevivente e dependentes menores conforme estado. Útil pra planejamento...
AI agents call calcular_itcmd 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 |
|---|---|---|---|
tipo | string | Yes | heranca: causa mortis. doacao: ato inter vivos. |
estado | string | Yes | UF onde o bem está / inventário tramita (sigla de 2 letras das 27 UFs). |
valorCents | integer | Yes | Valor do bem ou direito transmitido em centavos |
isencaoCents | integer | — | Isenções aplicáveis em centavos (ex: cônjuge sobrevivente, faixa de isenção) |
aliquotaOverridePercent | number | — | Override manual de alíquota (%) — para casos progressivos específicos (ex: RJ progressivo) |
Parameters from the server's own tool schema.
This tool reads tax law parameters (state-specific rates, exemptions) and performs arithmetic to compute a tax amount. It does not execute transactions, move money, delete data, or modify external state. The output is informational — tax calculations for planning purposes. A user or agent would use this to understand tax liability before taking action, not to incur or pay the tax themselves.
From the tool's definition Tool name and description indicate 'Calcula ITCMD' (calculates) — it performs computation of tax liability based on inputs (inheritance/donation values, state, beneficiary relationship).
Attacks that exploit this kind of access
Calcula ITCMD (imposto sobre transmissão causa mortis e doação). Tributo estadual com alíquotas que variam por UF (SP=4%, RJ progressivo 4-8%, etc.). Devido na herança/inventário e na doação. Considera isenções como cônjuge sobrevivente e dependentes menores conforme estado. Útil pra planejamento sucessório e doação. Fonte: CF art. 155 I + legislação estadual + Resolução SF 9/92. It is categorised as a Read tool in the Contaí — Calculadoras Fiscais Brasileiras MCP Server, which means it retrieves data without modifying state.
calcular_itcmd accepts 5 parameters: tipo, estado, valorCents, isencaoCents, aliquotaOverridePercent. Required: tipo, estado, valorCents. 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_itcmd: 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_itcmd 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_itcmd 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_itcmd. 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_itcmd 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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