list_functions · Fabric Dw Mcp Cli MCP: Risk & Policy

WHAT IT DOES

What list_functions does on Fabric Dw Mcp Cli

AI agents call list_functions to retrieve information from Fabric Dw Mcp Cli without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why list_functions needs a policy

The tool name indicates it retrieves or enumerates functions within a data warehouse system. Despite the empty description reducing confidence slightly, 'list' operations are fundamentally read-only and retrieve information without modification. In the context of a Fabric DW admin server, this would query available SQL functions or stored procedures.

From the tool's definition Tool name 'list_functions' suggests retrieval of function metadata from a Microsoft Fabric Data Warehouse. The verb 'list' indicates a query operation with no side effects.

Attacks that exploit this kind of access

Questions about list_functions

What does the list_functions tool do? +

list_functions. It is categorised as a Read tool in the Fabric Dw Mcp Cli MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_functions? +

Register the Fabric Dw Mcp Cli MCP server in PolicyLayer and add a rule for list_functions: 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 Fabric Dw Mcp Cli. Nothing to install.

What risk level is list_functions? +

list_functions is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_functions? +

Yes. Add a rate_limit block to the list_functions 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.

How do I block list_functions completely? +

Set action: deny in the PolicyLayer policy for list_functions. 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.

What MCP server provides list_functions? +

list_functions is provided by the Fabric Dw Mcp Cli MCP server (sdebruyn/fabric-dw-mcp-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.