Stats & About
C++ Proposals Explorer is an open-source tool for exploring the isocpp std-proposals mailing list archive using AI-powered search and synthesis.
17,030
Emails archived
2,492
Discussion threads
669
Unique contributors
15 Apr 2019 – 19 Feb 2026
Archive period
Crawling
A Python crawler runs daily via GitHub Actions, scraping the public Pipermail HTML archive at lists.isocpp.org. Each email is parsed, cleaned, and stored in Supabase Postgres.
AI embeddings
Every email is embedded using HuggingFace BAAI/bge-small-en-v1.5 model. These 384-dimensional vectors are stored in pgvector and enable semantic similarity search.
RAG answers
When you ask a question, the app retrieves the most relevant emails using hybrid (vector + full-text) search, then asks Groq LLaMA to synthesize an answer with citations.
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