AI agents call list_orders to retrieve information from Fortnox 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 sales order data without creating, modifying, deleting, or executing any operations. It is a read-only operation that falls clearly into the Read category. The low severity reflects minimal risk from misuse—listing orders has no destructive or financial impact.
From the tool's definition Tool name 'list_orders' and description 'List and filter sales orders' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
List and filter sales orders. It is categorised as a Read tool in the Fortnox MCP Server, which means it retrieves data without modifying state.
Register the Fortnox MCP server in PolicyLayer and add a rule for list_orders: 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 Fortnox. Nothing to install.
list_orders 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 list_orders 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 list_orders. 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.
list_orders is provided by the Fortnox MCP server (proviscale/fortnox-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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