List all available licenses (SKUs) in the tenant
AI agents call list_available_licenses to retrieve information from Microsoft Graph 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 and enumerates configuration/inventory data about available licenses in the Microsoft 365 tenant. It has no side effects, creates no resources, executes no code, and causes no irreversible changes. It is a straightforward Read operation with minimal security impact—listing available SKUs is informational only and does not grant access to user data or enable unauthorized actions.
From the tool's definition Tool name 'list_available_licenses' and description 'List all available licenses (SKUs) in the tenant' indicate a query operation that retrieves license information without modifying, deleting, or executing operations.
Attacks that exploit this kind of access
List all available licenses (SKUs) in the tenant. It is categorised as a Read tool in the Microsoft Graph MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Microsoft Graph MCP Server MCP server in PolicyLayer and add a rule for list_available_licenses: 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 Microsoft Graph MCP Server. Nothing to install.
list_available_licenses 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_available_licenses 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_available_licenses. 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_available_licenses is provided by the Microsoft Graph MCP Server MCP server (ry-ops/microsoft-graph-mcp-server). 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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