Fix all DAX expressions by properly quoting table names with spaces. Fixes: Leads Sales Data[Amount] ->
AI agents use pbip_fix_dax_quoting to create or update resources in Power BI MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Power BI MCP Server environment.
This tool modifies DAX expressions within the Power BI model by updating/rewriting expressions to fix quoting syntax. It creates or modifies data (DAX code) in a reversible way — it's a bulk update/transformation of expressions, not a deletion. The blast radius is medium because incorrect auto-fixes could break multiple DAX expressions across the model, but changes are typically reversible by restoring from source.
From the tool's definition Fix all DAX expressions by properly quoting table names with spaces. Fixes: Leads Sales Data[Amount]
Attacks that exploit this kind of access
Fix all DAX expressions by properly quoting table names with spaces. Fixes: Leads Sales Data[Amount] ->. It is categorised as a Write tool in the Power BI MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Power BI MCP Server MCP server in PolicyLayer and add a rule for pbip_fix_dax_quoting: 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 Power BI MCP Server. Nothing to install.
pbip_fix_dax_quoting is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the pbip_fix_dax_quoting 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 pbip_fix_dax_quoting. 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.
pbip_fix_dax_quoting is provided by the Power BI MCP Server MCP server (sulaiman013/powerbi-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.