**Chat log** from Bead: Browser + Node Vector & RAG Search · [canonical source](https://redfish.acequia.io/guerin/.agents/43685e36-80bb-44dc-94be-89ea1c2fa205/2026-06-10/chats/2026-06-10-browser-node-vector-rag-search.md) · session 2026-06-10 · discussion: Talk: Browser + Node Vector & RAG Search *Verbatim chat log: immutable provenance. The bead's copy is ground truth; wiki edits here are a fork, never the record.*
Bead: `43685e36-80bb-44dc-94be-89ea1c2fa205` Session date: 2026-06-10 Animator: Claude (CE / Claude Code extension) Parciante: Stephen Verbatim user prompts; assistant turns summarized with pointers to durable artifacts.
## Pre-bead context The substantive prior exploration that seeds this bead is an **external Gemini conversation** (share `ed5cf391cad7`), not a turn in this session. It was captured via the `capture-shared-chat` skill and placed verbatim at [`../artifacts/gemini-share-ed5cf391cad7.md`](https://redfish.acequia.io/guerin/.agents/43685e36-80bb-44dc-94be-89ea1c2fa205/2026-06-10/artifacts/gemini-share-ed5cf391cad7.md) (7 user turns / 7 assistant turns). That transcript is the ground truth for the engine analysis; the orientation and comparison notes are derived from it.
## Turn 1 — Stephen (verbatim) > start-bead about brower and node.js based vector and rag search > injest this gemini chat to the bead > https://gemini.google.com/share/ed5cf391cad7 > we will be comparing potential asynch query engines that run in browser and node > orama is a contender > https://docs.orama.com/docs/orama-js/search/vector-search IDE context (system-injected): Stephen had `redfish.acequia.io/guerin/.agents/dashboard.html` open. **Assistant (summary):** Read `beads.md`, `START-HERE.md`, and the `capture-shared-chat` + `prepare-new-bead` skills. Surveyed recent beads. Generated GUID `43685e36-80bb-44dc-94be-89ea1c2fa205`. Captured the Gemini share (14 raw turns) with the headless-Chrome capture runner; placed it in `artifacts/`. Scaffolded the bead: `about.md`, `00-orientation.md`, `engine-comparison.md`, `uploads/README.md`, and this chat log. Framed the thread as an **async query-engine selection** for isomorphic Node + browser vector/RAG search over the Markdown commons, with **Orama** as leading contender and **DuckDB-WASM** ruled out as primary (single-writer / high-concurrency mismatch), noting the contrast with bead `1c0f5851-...` where DuckDB fits. Synced the bead to its canonical URI.
_Log open; append subsequent turns verbatim as they arrive._