Check on an active charging session — power, battery level, time remaining, and cost.
AI agents call rivian_get_charging_session to retrieve information from Rivian MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries current charging session information (power, battery level, time remaining, cost) without creating, modifying, deleting, or executing any operations. It is a passive data retrieval operation with no blast radius if misused by an AI agent — the worst outcome is reading stale or sensitive vehicle telemetry that the user has already authorized via login. It fits the Read category definitionally.
From the tool's definition Tool name 'rivian_get_charging_session' combined with description 'Check on an active charging session' indicates retrieval of data with no modification or execution.
Attacks that exploit this kind of access
Check on an active charging session — power, battery level, time remaining, and cost. It is categorised as a Read tool in the Rivian MCP MCP Server, which means it retrieves data without modifying state.
Register the Rivian MCP server in PolicyLayer and add a rule for rivian_get_charging_session: 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 Rivian MCP. Nothing to install.
rivian_get_charging_session 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 rivian_get_charging_session 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 rivian_get_charging_session. 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.
rivian_get_charging_session is provided by the Rivian MCP server (patrickheneise/rivian-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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