Get list of vouchers / cash receipts (recibos de caja) from Siigo
AI agents call siigo_get_vouchers to retrieve information from Siigo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves existing voucher/cash receipt data from Siigo without creating, modifying, deleting, or executing any operations. It is a straightforward read-only query operation with minimal blast radius if misused by an AI agent—worst case would be unauthorized information disclosure of financial records already stored in the system.
From the tool's definition Tool name 'siigo_get_vouchers' and description 'Get list of vouchers / cash receipts' indicate retrieval/query operation with no modification, deletion, or execution of commands.
Attacks that exploit this kind of access
Get list of vouchers / cash receipts (recibos de caja) from Siigo. It is categorised as a Read tool in the Siigo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Siigo MCP Server MCP server in PolicyLayer and add a rule for siigo_get_vouchers: 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 Siigo MCP Server. Nothing to install.
siigo_get_vouchers 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 siigo_get_vouchers 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 siigo_get_vouchers. 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.
siigo_get_vouchers is provided by the Siigo MCP Server MCP server (jdlar1/siigo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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