System Design

Reusable RAG Delivery Foundation

A concise architecture built for real delivery: reusable ingest + retrieval plumbing, grounded chat with citations, and practical reliability controls.

STEP 01

Ingest Sources

PDF and URL content enters via API routes with parsing and cleanup.

STEP 02

Chunk + Embed

Text is chunked for retrieval quality, then embedded with OpenAI embeddings.

STEP 03

Retrieve Evidence

Pinecone session namespaces return top context chunks for each user query.

STEP 04

Stream Answer

Chat responses stream back with citations, fallback behavior, and source tags.

Rate Limits

Per-endpoint throttling controls abuse and API spend.

Request IDs

Every response includes X-Request-Id for incident tracing.

Metrics Snapshots

Runtime counters track success/error mix and average latency.