DataArcus for Power BI

DataArcus

Power BI reports designed right, and checked in Power BI, not just generated. Arabic, right to left and the Gulf calendar, next to Microsoft's tools.

Website: dataarcus.com · Contact: [email protected]

This repository is the source of dataarcus.com: free Power BI tools that run in your browser (nothing you open in them is uploaded), articles in English and Arabic, and the Power BI Desktop measurements behind the tools.

Free tools

How we check our work

• Automated tests on every change: every website test suite (the list is ALL in scripts/tests/run-all.mjs) and the MCP's tests run on each pull request and push to main.
• Microsoft's own validator: our test runs check the reports the tools write, on our sample models, with Microsoft's report validator. The website's tools don't run it on the reports you make in your browser. The DataArcus MCP runs it on your machine on each new report it plans with plan_layout (in English, Arabic or both) before create_report writes it, and in check_report. A redesign, the Arabic twin, the English-Arabic copy and the sample project are copies or fixed files and are not run through it before they are written: check_report runs it on them afterwards.
• Measured in Power BI Desktop: sizes, layouts and numbers are measured in Power BI Desktop, never estimated, and recorded with the version used.
• Sourced facts: prices, dates and Microsoft claims are linked to their source and re-checked. The Gulf calendar's announced Ramadan and Eid dates for the UAE and Saudi Arabia, each with its source, are in scripts/gulf-calendar/DATES-SOURCES.md.

Measurements

What was measured in Power BI Desktop, on which version, how, and the quirks found, is in scripts/tests/DESKTOP-TESTS.md.

The AI report designer

An AI report designer for Power BI (it works with Claude on your own machine and writes new files only: the one file it ever replaces is its own answers file, after you approve) is in public beta: download 0.3.0 from the release page (check its SHA-256 there), install steps in mcp/README.md. Questions: [email protected].

How it is built

The parts (the website, the engines it shares with the MCP, the MCP server and its approval gate, the tests), how one write flows from plan to approval to file, and the rules that always hold: ARCHITECTURE.md.

Licence

Copyright © 2025-2026 Abdelrahman Mohammed, trading as DataArcus. All rights reserved: the code is published for transparency, not as open source. See LICENSE.