AI agents call powerbi_list_workspaces to retrieve information from MCP Server for Power BI without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries a list of Power BI workspaces with no side effects. It does not modify, delete, or execute code. The 'list' operation is a standard read pattern. Low severity because workspace enumeration alone does not directly expose sensitive data or enable destructive actions—it merely discovers available resources.
From the tool's definition Tool name 'powerbi_list_workspaces' indicates a list operation that retrieves workspace information. Server context shows tools like 'list_datasets_in_workspace' and 'get_workspace_id' which are clearly read operations.
Documented attack patterns abuse exactly the kind of access powerbi_list_workspaces gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Server for Power BI, and nothing reaches the server without passing your rules. This is the rule we recommend for powerbi_list_workspaces:
{
"version": "1",
"default": "deny",
"tools": {
"powerbi_list_workspaces": {}
}
}powerbi_list_workspaces is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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powerbi_list_workspaces. It is categorised as a Read tool in the MCP Server for Power BI MCP Server, which means it retrieves data without modifying state.
Register the MCP Server for Power BI MCP server in PolicyLayer and add a rule for powerbi_list_workspaces: 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 MCP Server for Power BI. Nothing to install.
powerbi_list_workspaces 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 powerbi_list_workspaces 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 powerbi_list_workspaces. 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.
powerbi_list_workspaces is provided by the MCP Server for Power BI MCP server (mitsubishi-fuso/mcp-server-for-powerbi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Server for Power BI, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
5 MCP Server for Power BI tools catalogued and risk-classified — across an index of 43,000+ MCP servers.