powerbi-medallion-architecture

powerbi-medallion-architecture is a skill for Claude Code, Codex from santoshkanthety/powerbi-agent. It costs 58 tokens per session (940 once invoked), scanned A, original, MIT.

A design guide for organizing data in a lakehouse—a storage system for large data collections—into Bronze, Silver, and Gold layers.

In plain words
What is it for?
Use it to plan or set up data lake architecture, decide what belongs in each layer, and organize Microsoft Fabric or Azure data in OneLake.
Why use it?
It gives raw, cleaned, and business-ready data separate homes, making data easier to trace, reuse, and govern.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to plan or set up data lake architecture, decide what belongs in each layer, and organize Microsoft Fabric or Azure data in OneLake.

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Install with agentmods
npx agentmods add skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add santoshkanthety/powerbi-agent --skill powerbi-medallion-architecture
Clone the repo
git clone --depth 1 https://github.com/santoshkanthety/powerbi-agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for powerbi-medallion-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture/github.svg)](https://agentmods.dev/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture)
Your own site
<a href="https://agentmods.dev/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture"><img src="https://agentmods.dev/badge/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for powerbi-medallion-architecture

Your own site · 80×15
<a href="https://agentmods.dev/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture"><img src="https://agentmods.dev/badge/skills/santoshkanthety/powerbi-agent/powerbi-medallion-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 940 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00058 $0.00940
Opus 5 $0.00029 $0.00470
Sonnet 5 $0.00012 $0.00188
Haiku 4.5 $0.00006 $0.00094

Measured 12d ago against content hash fef5eae34710, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

powerbi-medallion-architecture scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/powerbi-medallion-architecture/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: Medallion Architecture Design & Setup

Trigger

Activate when the user mentions: medallion, bronze, silver, gold, lakehouse, data lake, data architecture, layer design, raw layer, curated layer, semantic layer, OneLake

What You Know

You embody the experience of a 20+ year data architect who has designed and delivered enterprise medallion architectures on Microsoft Fabric and Azure Data Lake. You know every trade-off, every failure mode, and every shortcut worth taking.

The Three-Layer Medallion Pattern

OneLake
├── Bronze/  (Raw Ingestion)
│   ├── crm/
│   ├── erp/
│   └── files/
├── Silver/  (Cleaned & Conformed)
│   ├── dim_customer/
│   ├── dim_product/
│   └── fact_sales/
└── Gold/    (Business-Ready)
    ├── semantic_model/
    ├── finance_reporting/
    └── marketing_analytics/

Bronze Layer — Raw Zone

  • Never transform, never filter — store exactly as received
  • Partition by ingestion date: year=YYYY/month=MM/day=DD/
  • Store as Parquet or Delta — never CSV (no schema enforcement)
  • Preserve source system identifiers and timestamps
  • Add metadata columns: _ingested_at, _source_system, _file_name
  • Retain for minimum 7 years (audit trail, replays)

Silver Layer — Conformed Zone

  • Apply data quality rules: nulls, duplicates, referential integrity
  • Standardize data types (e.g., all dates as UTC timestamps)
  • Resolve naming conflicts across source systems
  • Implement slowly changing dimensions (SCD Type 1, 2, 6)
  • Add surrogate keys — never expose natural keys to Gold
  • Validate with Great Expectations or Fabric Data Quality

Gold Layer — Business Zone

  • Optimized for analytical consumption
  • Star Schema preferred for Power BI (see star-schema skill)
  • Pre-aggregated rollup tables for large fact tables (>100M rows)
  • Semantic layer aligned to business vocabulary
  • RLS policies applied at this layer
  • Delta tables with V-Order optimization for Power BI DirectLake

Fabric-Specific Guidance

DirectLake Performance — Gold Layer Rules

  • Enable V-Order on all Delta tables: OPTIMIZE table VORDER
  • Target file size: 128MB–1GB per Parquet file
  • Partition only when cardinality > 10M rows and filter patterns are clear
  • Avoid over-partitioning — it kills DirectLake scan performance

Read the full file on GitHub · 100 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 100 lines · 0 tokens per session scan A fef5eae34710

Subscribe to this mod's changes

powerbi-medallion-architecture is a skill published in the GitHub repository santoshkanthety/powerbi-agent (2 stars, last pushed 12d ago), licensed MIT. It adds 58 tokens to every session and 940 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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