Verifica regime tributario: Simples Nacional ou MEI. QUANDO USAR: - Precisa saber se empresa pode emitir NF simplificada - Quer filtrar empresas por regime RETORNA: - simples_nacional: true/false - mei: true/false - datas de opcao/exclusao
AI agents call regime_tributario to retrieve information from MCP CNPJ Intelligence without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries publicly available Brazilian company tax regime information from Federal Revenue records. It retrieves data about whether a company is in 'Simples Nacional' or 'MEI' (Microempreendedor Individual) tax categories, along with relevant dates. There are no side effects, no data modification, no code execution, and no financial transactions.
From the tool's definition Tool name 'regime_tributario' and description 'Verifica regime tributario' (verifies tax regime). Returns boolean flags and dates: 'simples_nacional: true/false', 'mei: true/false', 'datas de opcao/exclusao'.
Attacks that exploit this kind of access
Verifica regime tributario: Simples Nacional ou MEI. QUANDO USAR: - Precisa saber se empresa pode emitir NF simplificada - Quer filtrar empresas por regime RETORNA: - simples_nacional: true/false - mei: true/false - datas de opcao/exclusao. It is categorised as a Read tool in the MCP CNPJ Intelligence MCP Server, which means it retrieves data without modifying state.
Register the MCP CNPJ Intelligence MCP server in PolicyLayer and add a rule for regime_tributario: 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 MCP CNPJ Intelligence. Nothing to install.
regime_tributario 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 regime_tributario 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 regime_tributario. 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.
regime_tributario is provided by the MCP CNPJ Intelligence MCP server (raphaelmarra/mcp-cnpj-intelligence). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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