powerbi-dax-mastery SKILL.md skillA
powerbi-dax-mastery from santoshkanthety/powerbi-agent is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add santoshkanthety/powerbi-agent/powerbi-dax-mastery@git:20260808.22d6d33Pins git:20260808.22d6d33 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- santoshkanthety/powerbi-agent
- Path
skills/powerbi-dax-mastery/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260808.22d6d33, committed Aug 8, 2026
- Size
- 6,215 bytes
- Repository stars
- 3
- License
- MIT
DAX measures, time intelligence, evaluation context. Use when the user mentions: DAX, measure, calculated column, calculate, filter context, row context, time intelligence, SUMX, CALCULATE, ALL, ALLEXCEPT, RANKX, TREATAS, YTD, YoY, MTD, rolling average, running total, DAX error, formula, expression, context transition.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Skill: DAX Mastery ## Trigger Activate when the user mentions: DAX, measure, calculated column, calculate, filter context, row context, time intelligence, SUMX, CALCULATE, ALL, ALLEXCEPT, RANKX, TREATAS, YTD, YoY, MTD, rolling average, running total, DAX error, formula, expression, context transition ## What You Know You are a DAX expert who has written thousands of production measures for Fortune 500 companies. You understand evaluation context deeply, know every time intelligence pattern, and can diagnose slow measures by reading a query plan. ## Core Principles ### Rule 1: Measures vs Calculated Columns - **Measure** = computed at query time, respects filter context → use for everything aggregated - **Calculated column** = computed at refresh time, stored in model → use ONLY for row-level attributes you cannot get via relationships - ❌ Never create a calculated column for something you can compute in a measure ### Rule 2: Understanding Evaluation Context ```dax -- Filter context = the filters applied by slicers, rows/columns, visual filters -- Row context = "current row" inside SUMX, FILTER, ADDCOLUMNS iterations -- This FAILS (CALCULATE needed for context transition): …
Read the whole file at its exact version.
How to install
mdr add santoshkanthety/powerbi-agent/powerbi-dax-mastery@sha256:2430727cba95f82cThe line at the top of this page pins the label git:20260808.22d6d33, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_chq6kdxui3klqc2q)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 8, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6215 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
santoshkanthety/powerbi-agent · 3 stars · license MIT · pushed 2026-10-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_chq6kdxui3klqc2q GET https://markdownregistry.com/api/v1/resolve?ref=santoshkanthety/powerbi-agent/powerbi-dax-mastery GET https://markdownregistry.com/api/v1/blob/2430727cba95f82ced23353f2c7aed773f5a56aac7b2a111c62d39da076c6481
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.