Fabric DW Agent Skills

fabric-dw

Python CLI and MCP server for Microsoft Fabric Data Warehouses and SQL Analytics Endpoints: administer, query, optimize, and secure them from your terminal or your AI agent.

Full documentation: fdw.debruyn.dev

📣 Just announced! Read the story behind fabric-dw in the announcement blog post.

Description

fabric-dw provides two interfaces for managing Microsoft Fabric Data Warehouses and SQL Analytics Endpoints:

• CLI: a command-line tool for common DW administration tasks.
• MCP server: a Model Context Protocol server that exposes DW operations as tools for AI assistants.

Authentication is configured via the FABRIC_AUTH environment variable. The default (FABRIC_AUTH=default) uses azure-identity DefaultAzureCredential, which walks environment variables, Workload/Managed Identity, Azure CLI, Azure Developer CLI, Azure PowerShell, and interactive browser in order. Any of these will satisfy it. See the Authentication docs for the full chain, all supported sources, and debugging tips.

Installation

pip install fabric-dw
# or run without installing:
uvx fabric-dw --help
# or install persistently on PATH:
uv tool install fabric-dw

After installation, the fdw command is a short alias for fabric-dw; both invoke the same entry point. See the Install docs for MCP server setup, upgrading, and prerelease builds.

Quick Start

CLI

The workspace is a global root option -w / --workspace placed before the command group. Set a default once with fdw config set workspace <NAME> and omit -w on every subsequent call. Workspace resolution order: (1) -w flag, (2) FABRIC_DW_DEFAULT_WORKSPACE env var, (3) configured default.

# Run without installing; install to get the fdw alias
uvx fabric-dw --help

# Set a default workspace once; all subsequent commands pick it up
fdw config set workspace SalesWS

# -- Run and explain SQL --

# Execute a query against a warehouse
fdw sql exec SalesWH -q "SELECT TOP 10 * FROM dbo.orders ORDER BY order_date DESC"

# Capture an estimated execution plan as SVG -- no SSMS or Windows needed
fdw sql plan SalesWH -f query.sql --format svg -o plan.svg

# -- Performance mission-control --

# See what is running right now
fdw queries running SalesWH

# Long-running queries from the past hour
fdw queries long-running SalesWH --ago 1h

# Kill a runaway session by ID
fdw queries kill SalesWH 55

# Most-repeated queries over the past 24 hours
fdw queries frequent SalesWH --ago 24h

# -- Optimize --

# Inspect a statistics histogram with inline terminal bar charts
fdw statistics show SalesWH dbo.orders st_order_date --histogram

# Re-cluster a table on a new key (transactional CTAS-swap, auto-rollback on failure)
fdw tables cluster-by SalesWH dbo.orders --cluster-by customer_id

# -- Time travel + export --

# Browse the table as it looked 2 hours ago
fdw tables read SalesWH dbo.orders --ago 2h

# Export a point-in-time snapshot to Parquet
fdw tables export SalesWH dbo.orders --output snapshot.parquet --ago 2h

# -- Governance --

# Grant SELECT on a specific table
fdw permissions sql grant SalesWH SELECT --to [email protected] --object dbo.orders

# Deny access to sensitive columns (column-level security)
fdw permissions cls deny SalesWH SELECT --to [email protected] \
    --object dbo.orders --columns salary,bonus