calculate_cdi_yield
Calcula quanto rende um valor no CDI de hoje (Banco Central) por um prazo em meses, com IR regressivo descontado e comparação com a poupança. Aceita percentual do CDI (ex: 102% de um CDB) ou o CDI cheio. Parâmetros obrigatórios: principal, months. Opcionais: cdi_percent. Use exatamente estes nome...
This record as markdown: /tools/com-falazuki-finance-br/calculate-cdi-yield.md
What calculate_cdi_yield does on FalaZuki Finance BR
AI agents call calculate_cdi_yield 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 |
|---|---|---|---|
months | integer | Yes | Prazo em meses (1-360) |
principal | number | Yes | Valor investido em R$ |
cdi_percent | number | — | Percentual do CDI que a aplicação paga (100 = CDI cheio) |
Parameters from the server's own tool schema.
Why calculate_cdi_yield is rated Low
Even though calculate_cdi_yield 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_cdi_yield 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_cdi_yield, this is the rule to start with:
calculate_cdi_yield 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_cdi_yield call is checked against it from then on.
Questions about calculate_cdi_yield
Calcula quanto rende um valor no CDI de hoje (Banco Central) por um prazo em meses, com IR regressivo descontado e comparação com a poupança. Aceita percentual do CDI (ex: 102% de um CDB) ou o CDI cheio. Parâmetros obrigatórios: principal, months. Opcionais: cdi_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_cdi_yield accepts 3 parameters: months, principal, cdi_percent. Required: months, principal. 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_cdi_yield: 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_cdi_yield 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_cdi_yield 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_cdi_yield. 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_cdi_yield 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.
More on FalaZuki Finance BR, and thousands of servers like it.
This server
Across the catalogue