Lista todos os cupons de desconto criados
AI agents call listCoupons to retrieve information from Abacatepay without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns existing coupon data without modifying, deleting, or executing any operations. It is a read-only list operation, similar to other Read category tools like 'listBillings' and 'listCustomers' on the same server. The blast radius of misuse is minimal—an agent could retrieve coupon information but cannot modify, delete, or financial commit through this operation alone.
From the tool's definition Tool name 'listCoupons' and description 'Lista todos os cupons de desconto criados' (Lists all discount coupons created) indicate a data retrieval operation with no side effects.
Attacks that exploit this kind of access
Lista todos os cupons de desconto criados. It is categorised as a Read tool in the Abacatepay MCP Server, which means it retrieves data without modifying state.
Register the Abacatepay MCP server in PolicyLayer and add a rule for listCoupons: 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 Abacatepay. Nothing to install.
listCoupons 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 listCoupons 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 listCoupons. 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.
listCoupons is provided by the Abacatepay MCP server (juliopeixoto/abacatepay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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