VISTARA — Day 4 Devlog

Date: August 18, 2026
Focus: Semantic Search + Hybrid Search

Today I expanded VISTARA from keyword-based search into semantic search, allowing it to understand the meaning behind queries.

Completed

• Sentence Transformers integration
• all-MiniLM-L6-v2 embedding model
• 384-dimensional embeddings
• Embedding generation and storage
• Cosine similarity search
• Semantic result ranking
• Compact semantic snippets
• Hybrid keyword + semantic search
• Sensitive-file filtering in semantic search
• Combined FTS5 and semantic results

Result

VISTARA can now search using both exact keywords and semantic meaning, making the search much more useful for natural-language queries.

The search engine backend is now essentially complete.

Next

Move towards the remaining polish and then Implement User Interface.

Day 4: Completed ✅