List backward delivery cargo types via Common/getBackwardDeliveryCargoTypes (doc 1.18). Returns types of cargo that can be sent back (documents, money, etc.). Used for return shipments and COD. Docs recommend caching monthly.
AI agents call reference_get_backward_cargo_types to retrieve information from Novaposhta without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries reference data about cargo types eligible for return shipments. It performs a lookup/retrieval with no modification, deletion, execution, or financial impact. The mention of caching further confirms it returns static or semi-static reference information.
From the tool's definition Tool name contains 'get' and description states 'List backward delivery cargo types' and 'Returns types of cargo' — this is a retrieval operation with no side effects. The description emphasizes caching suggests read-only reference data.
Attacks that exploit this kind of access
List backward delivery cargo types via Common/getBackwardDeliveryCargoTypes (doc 1.18). Returns types of cargo that can be sent back (documents, money, etc.). Used for return shipments and COD. Docs recommend caching monthly. It is categorised as a Read tool in the Novaposhta MCP Server, which means it retrieves data without modifying state.
Register the Novaposhta MCP server in PolicyLayer and add a rule for reference_get_backward_cargo_types: 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 Novaposhta. Nothing to install.
reference_get_backward_cargo_types 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 reference_get_backward_cargo_types 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 reference_get_backward_cargo_types. 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.
reference_get_backward_cargo_types is provided by the Novaposhta MCP server (@shopana/novaposhta-mcp-server). 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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