51CTO HarmonyOS Developer Community

Oct 14, 2026 · Mobile Development

HarmonyOS 7 Agent: Build Enterprise RAG Knowledge Base with Cloud Embeddings

The article demonstrates implementing a Retrieval-Augmented Generation (RAG) pipeline on HarmonyOS 7 for enterprise private knowledge base Q&A, covering document chunking with sliding window overlap, deterministic vectorization for offline testing, cosine similarity search, orchestrated index/retrieve/generate phases, system prompt constraints to prevent hallucination, UI citation display, and 27 offline unit tests.