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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

Parity-gap — app-rag-builder (RAG Builder)

Grade: F (Vaporware) — See apps-catalog-rollup.md for shared root cause.

Surface: https://loom-console-fvbbctd4eehqbkcs.b02.azurefd.net/apps/app-rag-builder Validated: 2026-05-26 Screenshot: temp/parity/apps/app-rag-builder.png

What the card claims

Description: "Stand up a Retrieval-Augmented Generation pipeline. Builds an AI Search index, wires Foundry prompt-flow, deploys an evaluation suite."

Designed bundle: ai-search-index + prompt-flow + evaluation items.

What actually happens

  • Detail page renders, Category=AI, by CSA
  • Bundled items (0) + "This app doesn't bundle any items yet."
  • Install button disabled
  • Direct API install returns 200 { installed: [] }

Verdict

F — promises a three-step RAG provisioning workflow (index, prompt-flow, eval), delivers nothing. The AI Search + Foundry endpoints those items would call also are unverified (Foundry endpoint is documented as 501 unless LOOM_FOUNDRY_PROJECT_ENDPOINT is set per existing memory).