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Complete support agent with semantic search, classification & escalation#34

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Complete support agent with semantic search, classification & escalation#34
samadhianjana wants to merge 2 commits into
interviewstreet:mainfrom
samadhianjana:main

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Replaced TF-IDF keyword search with semantic vector search using
sentence-transformers (all-MiniLM-L6-v2) and FAISS. Implemented
overlapping chunking (500 words, 50-word overlap). Expanded context
window from 2×400 chars to 5×2000 chars. Built persistent vector
index (1512 chunks). Updated README, code/README, and
requirements. All 29 tickets processed.
…art guide

- Added clear project description, what the agent does, and key features
- Documented architecture: escalation → classifier → FAISS retriever → generator
- Included quickstart setup steps (venv, dependencies, API key)
- Explained RAG approach: sentence-transformers, overlapping chunks, expanded context
- Updated project structure and evaluation notes
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