Daily battery charge/discharge totals (Wh). Requires an Enphase battery.
AI agents call get_lifetime_battery to retrieve information from Enphase Solar MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves aggregated battery performance metrics (lifetime daily totals) from an Enphase solar system. It is purely informational with no side effects. It falls clearly into the Read category as a data query operation.
From the tool's definition Tool name 'get_lifetime_battery' and description 'Daily battery charge/discharge totals (Wh)' indicate retrieval of historical telemetry data. No modification, deletion, or execution of external operations occurs.
Attacks that exploit this kind of access
Daily battery charge/discharge totals (Wh). Requires an Enphase battery. It is categorised as a Read tool in the Enphase Solar MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Enphase Solar MCP Server MCP server in PolicyLayer and add a rule for get_lifetime_battery: 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 Enphase Solar MCP Server. Nothing to install.
get_lifetime_battery 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 get_lifetime_battery 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 get_lifetime_battery. 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.
get_lifetime_battery is provided by the Enphase Solar MCP Server MCP server (xianman/enphase-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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