Generate a portable data dictionary (tables, columns, measures with DAX, relationships) for the connected model, with a documentation-coverage score. Returns Markdown or HTML; optionally writes to a file. Re-runnable in CI so docs never go stale.
AI agents call export_data_dictionary to retrieve information from Power BI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool reads metadata from the Power BI model (tables, columns, measures, relationships) and generates documentation. The 'optionally writes to a file' aspect introduces a minor Write dimension, but the primary action is data retrieval and report generation. Writing to a local file is a low-impact side effect, so Read remains the most appropriate category.
From the tool's definition Generate a portable data dictionary (tables, columns, measures with DAX, relationships) for the connected model... Returns Markdown or HTML
Attacks that exploit this kind of access
Generate a portable data dictionary (tables, columns, measures with DAX, relationships) for the connected model, with a documentation-coverage score. Returns Markdown or HTML; optionally writes to a file. Re-runnable in CI so docs never go stale. It is categorised as a Read tool in the Power BI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Power BI MCP Server MCP server in PolicyLayer and add a rule for export_data_dictionary: 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.
export_data_dictionary 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 export_data_dictionary 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 export_data_dictionary. 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.
export_data_dictionary 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.