calculate_break_even
Calcula o ponto de equilíbrio de um negócio: quantas unidades e quanto de faturamento por mês são necessários para cobrir o custo fixo. Devolve também a margem de contribuição, que é o que sobra de cada venda para pagar o fixo. Parâmetros obrigatórios: fixed_costs, unit_price, unit_variable_cost....
This record as markdown: /tools/com-falazuki-finance-br/calculate-break-even.md
What calculate_break_even does on FalaZuki Finance BR
AI agents call calculate_break_even 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 |
|---|---|---|---|
unit_price | number | Yes | Preço de venda de uma unidade, em R$ |
fixed_costs | number | Yes | Custos mensais que existem mesmo vendendo zero, em R$ |
sales_tax_percent | number | — | Impostos e taxas sobre a venda, em % do preço |
unit_variable_cost | number | Yes | Custo variável de uma unidade (matéria-prima, embalagem, comissão), em R$ |
Parameters from the server's own tool schema.
Why calculate_break_even is rated Low
Even though calculate_break_even 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_break_even 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_break_even, this is the rule to start with:
calculate_break_even 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_break_even call is checked against it from then on.
Questions about calculate_break_even
Calcula o ponto de equilíbrio de um negócio: quantas unidades e quanto de faturamento por mês são necessários para cobrir o custo fixo. Devolve também a margem de contribuição, que é o que sobra de cada venda para pagar o fixo. Parâmetros obrigatórios: fixed_costs, unit_price, unit_variable_cost. Opcionais: sales_tax_percent. 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_break_even accepts 4 parameters: unit_price, fixed_costs, sales_tax_percent, unit_variable_cost. Required: unit_price, fixed_costs, unit_variable_cost. 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_break_even: 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_break_even 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_break_even 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_break_even. 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_break_even 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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