Get tank sensor data: level, capacity, remaining, and fluid type (fuel, fresh water, waste water, live well, oil, black water, gasoline). Specify unitId for the tank sensor (check victron_discover to find it).
AI agents call victron_tank_levels to retrieve information from Victron Tcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves real-time sensor data from a Victron Energy system without creating, modifying, deleting, or executing any operations. It is a passive read operation similar to status checks on energy systems. Even if misused by an AI agent, the worst outcome would be repeated queries of non-sensitive tank level information from a local network system, which poses minimal risk.
From the tool's definition Tool description states 'Get tank sensor data' with parameters for reading level, capacity, remaining, and fluid type. No modification, deletion, or execution capabilities mentioned.
Attacks that exploit this kind of access
Get tank sensor data: level, capacity, remaining, and fluid type (fuel, fresh water, waste water, live well, oil, black water, gasoline). Specify unitId for the tank sensor (check victron_discover to find it). It is categorised as a Read tool in the Victron Tcp MCP Server, which means it retrieves data without modifying state.
Register the Victron Tcp MCP server in PolicyLayer and add a rule for victron_tank_levels: 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 Victron Tcp. Nothing to install.
victron_tank_levels 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 victron_tank_levels 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 victron_tank_levels. 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.
victron_tank_levels is provided by the Victron Tcp MCP server (lubosstrejcek/victron-tcp). 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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