GetAvailableWorkspaces
AI agents call GetAvailableWorkspaces 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.
This tool appears to list or retrieve available workspaces—a read-only operation that queries state without modification. The lack of parameters in the description and the naming convention confirm this is a retrieval function, not a write, execute, or destructive operation. Confidence is slightly reduced due to absent description, but the naming is clear enough to classify with reasonable confidence.
From the tool's definition Tool name 'GetAvailableWorkspaces' indicates a retrieval operation. The 'Get' prefix conventionally denotes read-only data retrieval with no side effects. No description provided, but the name strongly suggests querying workspace availability.
Attacks that exploit this kind of access
GetAvailableWorkspaces. 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 GetAvailableWorkspaces: 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.
GetAvailableWorkspaces 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 GetAvailableWorkspaces 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 GetAvailableWorkspaces. 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.
GetAvailableWorkspaces 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.