AI agents call calculate_aksjegevinst to retrieve information from Skatt without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a pure computational tool that analyzes stock transaction data to calculate capital gains using the FIFO (first-in-first-out) accounting method. It retrieves/derives information from provided data without creating side effects, modifying external systems, or executing code. It functions as a tax calculator that reads input and returns calculated results, fitting the Read category.
From the tool's definition Tool name 'calculate_aksjegevinst' and description 'Beregner realisert aksjegevinst og -tap per ticker med FIFO-metoden' (Calculates realized stock gains and losses per ticker using FIFO method) indicates a calculation/query operation that takes transaction…
Attacks that exploit this kind of access
Beregner realisert aksjegevinst og -tap per ticker med FIFO-metoden. It is categorised as a Read tool in the Skatt MCP Server, which means it retrieves data without modifying state.
Register the Skatt MCP server in PolicyLayer and add a rule for calculate_aksjegevinst: 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 Skatt. Nothing to install.
calculate_aksjegevinst 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 calculate_aksjegevinst 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 calculate_aksjegevinst. 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.
calculate_aksjegevinst is provided by the Skatt MCP server (valiantevers/skatt-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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