AI agents call compare_electricity_tariffs to retrieve information from Mcp Swiss without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and displays existing electricity tariff information from Swiss municipalities without creating, modifying, deleting, or executing any operations. It is a straightforward data retrieval and comparison function, fitting the Read category. Severity is low because misuse poses no financial risk (the tool merely displays public tariff information) and has minimal blast radius.
From the tool's definition Tool 'compare_electricity_tariffs' retrieves and presents electricity tariff data for comparison purposes.
Attacks that exploit this kind of access
Compare Swiss electricity tariffs across multiple municipalities side-by-side. Returns prices sorted from cheapest to most expensive. Useful for relocation decisions or cost analysis. It is categorised as a Read tool in the Mcp Swiss MCP Server, which means it retrieves data without modifying state.
Register the Mcp Swiss MCP server in PolicyLayer and add a rule for compare_electricity_tariffs: 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 Mcp Swiss. Nothing to install.
compare_electricity_tariffs 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 compare_electricity_tariffs 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 compare_electricity_tariffs. 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.
compare_electricity_tariffs is provided by the Mcp Swiss MCP server (mcp-swiss). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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