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CSA Loom — the Microsoft Fabric experience for Azure tenants where Fabric isn't yet available: lakehouses, warehouses, notebooks, semantic models, Activator rules, Data Agents, across Commercial, GCC, GCC-High, and DoD IL5

Loom Console

The Loom Console is the SaaS-feel front-end that gives federal customers the Microsoft Fabric workspace experience inside their Azure tenant. It's a Next.js 14 + Fluent UI v9 application running in Container Apps (Commercial / GCC) or AKS (GCC-High / IL5).

Panes (v1)

# Pane Path Purpose
1 Workspaces browser /workspaces List, filter, create workspaces
2 Workspace home /workspaces/[id] Item list across all workspace items
3 Lakehouse /workspaces/[id]/lakehouse/[name] Delta tables + files + SQL endpoint + lineage + RLS/CLS
4 Warehouse /workspaces/[id]/warehouse SQL editor + schema explorer + query history
5 Notebook /workspaces/[id]/notebook/[id] Embedded Databricks notebook iframe with SSO
6 KQL /workspaces/[id]/kql/[db] ADX query editor + dashboards iframe
7 Catalog /catalog UC + Purview unified browser (or Atlas at IL5)
8 Activator /workspaces/[id]/activator/[id] Visual rule designer + execution history
9 Data Agents /workspaces/[id]/agent/[id] Per-agent config + test chat
10 Monitoring Hub /monitoring Capacity / queries / deploys / audit / cost
11 Admin /admin Capacity scale + OAP + tenant settings + Entra groups
12 Setup Wizard /setup Conversational deploy (see Setup Wizard)

Plus the Loom Copilot sidebar drawer + full-screen chat at /copilot (see Copilot runtime).

v1.1 additional panes

  • Semantic Model designer (TMDL + DAX editor + Direct-Lake-Shim policy editor)
  • Marketplace (data products)
  • Real-Time Hub (visual stream designer)
  • Mirroring (UI for Debezium connector configs; CLI in v1)
  • Domains (visual domain hierarchy editor)

Tech stack

  • Framework: Next.js 14 (App Router) — server components for data fetch + client components for interactivity
  • UI library: Fluent UI v9 (matches Microsoft Fabric visual language; WCAG 2.1 AA baseline)
  • Auth: MSAL BFF (cookies + refresh server-side; OBO for downstream calls)
  • State: React Query for server state; Zustand for ephemeral UI
  • API: Next.js Route Handlers under /api/* proxy to Azure ARM, Databricks REST, Synapse REST, Power BI REST, ADX REST, Purview REST, AI Search REST, Loom backend services
  • Embeds: iframe for Databricks notebook, ADX dashboard, Power BI report — SSO via Entra; same-origin via BFF reverse-proxy
  • Test: Playwright E2E + Vitest unit + axe-core accessibility
  • Container: multi-stage Dockerfile; ~120 MB image; ACR-hosted
  • Deploy: Container Apps (Commercial / GCC) or AKS Helm chart (GCC-High / IL5)

Performance targets

Metric Target
First Contentful Paint < 1.5 s
Largest Contentful Paint < 2.5 s
Time to Interactive < 3.5 s
API response p50 < 200 ms
API response p95 < 500 ms
API response p99 < 1.5 s
Initial bundle (gzipped) < 400 KB; per-pane lazy-load

Accessibility

  • WCAG 2.1 AA compliance (Fluent UI v9 baseline)
  • Keyboard navigation throughout
  • Screen-reader labels
  • High-contrast mode (Fluent theming)
  • en-US baseline; locale structure ready