--- title: "Encoding Your Domain Expert: The Context Layer Behind Spotify's Data Assistant" url: https://daily.dev/posts/encoding-your-domain-expert-the-context-layer-behind-spotify-s-data-assistant-p0jrb8pyv source_url: https://engineering.atspotify.com/2026/6/encoding-your-domain-expert-the-context-layer-behind-spotifys-data-assistant type: article source: "Spotify Labs" published: 2026-06-10T13:03:24.945Z updated: 2026-06-10T14:20:20.844Z tags: ["llm", "ai-agents", "rag"] reading_time: 7 upvotes: 2 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Encoding Your Domain Expert: The Context Layer Behind Spotify's Data Assistant **[Spotify Labs](https://daily.dev/sources/spotify)** · 7 min read · 2 upvotes · 0 comments ## Summary Spotify built an AI data assistant called Vedder to help over 2,100 employees query 70,000+ datasets without needing SQL expertise. The key architectural insight is a 'cluster' model where domain experts curate the context the LLM sees — including relevant datasets with schema profiling, vetted question-SQL pairs, and business documentation. Automated generation of question-SQL pairs from query history was tested but rejected: domain experts accepted only 12.5% of auto-generated pairs, as most were noise. Each cluster has a health score tracking schema validity, coverage, and SQL reproducibility. Every conversation feeds back to cluster owners, enabling continuous improvement. The architecture encodes expert knowledge at scale rather than replacing experts. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Metadata Helps You Understand Data. AI Needs a Contextual Data Layer. • Arango](https://daily.dev/posts/metadata-helps-you-understand-data-ai-needs-a-contextual-data-layer-arango-2eabffyub) · ArangoDB · 1 upvotes · 0 comments - [Speeding up analytics with Databao](https://daily.dev/posts/speeding-up-analytics-with-databao-4pnaqkpng) · JetBrains · 0 upvotes · 0 comments - [Coding Is No Longer the Constraint: Scaling Developer Experience to Teams and Agents at Spotify](https://daily.dev/posts/coding-is-no-longer-the-constraint-scaling-developer-experience-to-teams-and-agents-at-spotify-fas1vty9a) · Spotify Labs · 1 upvotes · 0 comments --- Tags: [#llm](https://daily.dev/tags/llm), [#ai-agents](https://daily.dev/tags/ai-agents), [#rag](https://daily.dev/tags/rag) [View this post on daily.dev](https://daily.dev/posts/encoding-your-domain-expert-the-context-layer-behind-spotify-s-data-assistant-p0jrb8pyv)