despezzas_update_credit_card
Edita cartão manual. Exige confirm=true.
This record as markdown: /tools/despezzas-mcp/despezzas-update-credit-card.md
What despezzas_update_credit_card does on Despezzas
AI agents use despezzas_update_credit_card to create or update resources in Despezzas, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Despezzas environment.
Why despezzas_update_credit_card is rated Medium
This tool modifies credit card data, which is a Write operation. However, given the financial context (it's a financial management tool - Despezzas is a personal finance app) and the sensitivity of credit card information, the severity is elevated to 'high' rather than 'medium'. The confirm=true requirement provides some mitigation, reducing severity from 'critical'.
From the tool's definition Tool description states 'Edita cartão manual' (edits credit card manually). The verb 'edita' (edit/modify) indicates data modification. The requirement 'Exige confirm=true' (requires confirm=true) shows safety controls are in place.
Attacks that exploit this kind of access
The rule that runs despezzas_update_credit_card safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Despezzas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For despezzas_update_credit_card, this is the rule to start with:
despezzas_update_credit_card stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Despezzas, apply this rule, and every despezzas_update_credit_card call is checked against it from then on.
Questions about despezzas_update_credit_card
Edita cartão manual. Exige confirm=true. It is categorised as a Write tool in the Despezzas MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Despezzas MCP server in PolicyLayer and add a rule for despezzas_update_credit_card: 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 Despezzas. Nothing to install.
despezzas_update_credit_card is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the despezzas_update_credit_card 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 despezzas_update_credit_card. 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.
despezzas_update_credit_card is provided by the Despezzas MCP server (guipmilek/despezzas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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