# andrewnguonly/Lumos

A RAG LLM co-pilot for browsing the web, powered by local LLMs

Repository: https://github.com/andrewnguonly/Lumos
Canonical: https://ross.abutalabs.com/products/andrewnguonly-lumos
Language: TypeScript
License: MIT
License Family: permissive
Topics: chrome-extension, langchain, langchain-js, llm, ollama, react, typescript, webpack
Last push: 2025-01-26T15:42:22+00:00

## Health v2 (maintenance only)
Score: 19/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 3, release rhythm 8, longevity 73
- inputs: {"age_days": 1025, "days_push": 584, "days_rel": 627, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1516, forks 112 (observed 2026-08-28T04:04:56.630240+00:00)

## What it is
Lumos is a Chrome extension that acts as a RAG-powered LLM co-pilot for browsing the web, letting users summarize pages and ask questions about on-screen content. It runs entirely on local LLMs via a locally hosted Ollama server, so no data is sent to remote inference services.

## Use cases
- summarize long threads on forums and social media
- summarize news articles while browsing
- ask questions about product and business reviews
- ask questions about long technical documentation
- run an LLM assistant in the browser without cloud APIs
- chat with web page content using local models

## When to choose
- you want an in-browser LLM assistant with full privacy using local inference
- you already run Ollama and want a browsing co-pilot on top of it
- you need RAG-style Q&A over the page you're viewing

## When to avoid
- you want cloud-hosted model quality without managing a local Ollama server
- you need a browser other than Chrome
- you cannot run or configure a local LLM server with CORS settings

## Facets
- artifact type: application
- maturity: active
- function: rag, llm-inference, chatbot, browser-extension
- domain: large-language-models, browser-extensions, privacy
- platform: browser-extension, self-hosted
- tags: ollama, langchain-js, local-llm, chrome-extension, web-copilot, privacy-first, retrieval-augmented-generation, docker

## Member repositories
- andrewnguonly/Lumos (main) score 19

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:56.630240+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:32:05.566233+00:00, confidence not recorded.
  - readme: https://github.com/andrewnguonly/Lumos (fetched 2026-08-28T04:04:56.630240+00:00, sha 20d19c9b632c)
- Data as of 2026-08-30T08:39:29.467469+00:00.