list-custom-line-item-versions
AI agents call list-custom-line-item-versions to retrieve information from AWS IoT SiteWise MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'list' prefix strongly suggests a read-only query operation that retrieves historical version information. With an empty description, confidence is moderate but the naming convention is indicative of safe enumeration. No financial, destructive, write, or execute operations are implied. Listing versions is a typical read operation with minimal blast radius if misused by an AI agent.
From the tool's definition The tool name 'list-custom-line-item-versions' indicates a retrieval operation that lists versions of custom line items, with no destructive or modification language present.
Attacks that exploit this kind of access
list-custom-line-item-versions. It is categorised as a Read tool in the AWS IoT SiteWise MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AWS IoT SiteWise MCP Server MCP server in PolicyLayer and add a rule for list-custom-line-item-versions: 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 AWS IoT SiteWise MCP Server. Nothing to install.
list-custom-line-item-versions 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 list-custom-line-item-versions 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 list-custom-line-item-versions. 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.
list-custom-line-item-versions is provided by the AWS IoT SiteWise MCP Server MCP server (awslabs.aws-iot-sitewise-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.