Get GPS position data: latitude, longitude, altitude, course, speed, fix status, and number of satellites. Works with USB GPS (NMEA 0183) and NMEA 2000 GPS devices connected to the GX. Unit ID is always 100.
AI agents call victron_gps_status 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 is a purely informational tool that queries real-time positional data from GPS hardware. There are no side effects, data modifications, code execution, or irreversible operations. The data retrieved is read-only sensor information.
From the tool's definition Tool retrieves GPS position data (latitude, longitude, altitude, course, speed, fix status, satellite count) with no modification capability. Description explicitly states 'Get' which indicates read-only data retrieval from connected GPS devices.
Attacks that exploit this kind of access
Get GPS position data: latitude, longitude, altitude, course, speed, fix status, and number of satellites. Works with USB GPS (NMEA 0183) and NMEA 2000 GPS devices connected to the GX. Unit ID is always 100. 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_gps_status: 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_gps_status 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_gps_status 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_gps_status. 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_gps_status 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.
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