Multimodal Intelligence Platform

NOUS

νοῦς — the mind that reads, reasons, and writes

A multimodal RAG platform for research teams. Ingest papers and documents, query them with a LangGraph agent, and synthesise answers backed by a knowledge graph and vector search.

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Capabilities

Built for serious research work

Every layer of the stack is purpose-built for retrieval quality, not demo impressiveness.

LangGraph Agent

StateGraph with intent routing across research, writing, data, and general subgraphs. Twelve specialised tools, 30 s timeout, max 3 concurrent via semaphore.

Hybrid Search

Vector embeddings (Qdrant) and knowledge-graph traversal (Neo4j) combined with deterministic ranking. Answers cite real sources, not hallucinations.

Human-in-the-Loop

Destructive tools (ingest, create_note, create_draft) trigger interrupt(). The client polls, reviews, and resumes with explicit confirmation.

arXiv Integration

Search, ingest, and cite papers directly inside the agent conversation. Full-text extraction, entity linking, and graph indexing happen automatically.

Supabase SSR Auth

Cookie sessions, no client-side token storage. Email verification, forgot-password, and reset flows. IDOR-hardened with validated enums throughout.

GitOps Deployment

DigitalOcean Kubernetes with ArgoCD and Helm across dev / staging / prod. Self-hosted CI runner with Docker layer cache on DO Spaces. LangSmith + Prometheus observability.

History

Feature timeline

What shipped, and when.

April 2026

External database connector architecture

Email verification, forgot-password, reset-password flows

Supabase Auth consolidation — single auth provider

Entity indexing into Neo4j during document ingestion

ArgoCD + Helm v2 for Kubernetes deployment (GitOps)

Self-hosted CI runner with Docker layer cache on DO Spaces

Caching subsystem — stampede protection, TTL jitter, Prometheus metrics

Search analytics trend dashboard

NOUS design system migration — planetary palette, Sol gold, Inter + Source Serif 4

March 2026

Agent v2 — LangGraph StateGraph, intent classifier, error recovery, persistent memory, planner, reflection, compactor

Async job system with PostgreSQL checkpointing

Four new agent tools: document search, project management, notes

NOUS brand identity launch — Greek naming, gold palette, design system

Frontend rebrand — PageHeader, EmptyState component library

Settings page redesign with sub-routes and API key management

Deterministic hybrid search + IDOR hardening

LangGraph migration from the legacy manual tool loop