# RAG System Builder Architecture

> Sub-skill of rag-system-builder: Architecture.

- Skill: `vamseeachanta/rag-system-builder-architecture-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/rag-system-builder-architecture-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/rag-system-builder-architecture-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/rag-system-builder-architecture-2

---


# Architecture

## Architecture


```
User Question
      |
      v
+------------------+
| 1. Embed Query   |  sentence-transformers
+--------+---------+
         v
+------------------+
| 2. Vector Search |  Cosine similarity
+--------+---------+
         v
+------------------+
| 3. Retrieve Top  |  Top-K relevant chunks
+--------+---------+
         v
+------------------+
| 4. Build Prompt  |  Context + Question
+--------+---------+
         v
+------------------+
| 5. LLM Answer    |  Claude/OpenAI
+------------------+
```