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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

Tutorial: Prompt flow editor

CSA Loom prompt-flow editor — verified working against a live console by the UAT harness on 2026-07-01.

Open the editor

  1. Sign in to your CSA Loom Console (for example https://<your-console-host>).
  2. Open or create a workspace from the Workspaces page.
  3. Click + New item and choose Prompt flow from the catalog.
  4. The editor opens at /items/prompt-flow/<id>:

Prompt flow editor

What this editor does

A Prompt flow is a LangChain-style graph of LLM and tool nodes. In Loom you author the YAML/JSON definition, run it with inputs, and view run history via the Foundry BFF route.

Getting started

  1. Author the flow — Define the node graph (retrieval, LLM, post-processing) in YAML/JSON.
  2. Run with inputs — Provide sample inputs and run to see node outputs end-to-end.
  3. View run history — Inspect prior runs for reproducibility and debugging.
  4. Evaluate — Pair with a Foundry evaluation to score the flow before promoting it.

Learn more

Verified by the UAT harness