Separating web-data ingestion into a synchronous path (live, semantic inference over the page at query time) and an asynchronous path (pre-indexed vector DB/RAG knowledge base) fed by an intelligent router gives agents a single decision point for 'does this query need up-to-the-second data or synthesized historical knowledge?'
It reframes web access as a routing/runtime concern rather than a scraping concern, letting teams pick the cheapest latency/accuracy trade-off per query instead of forcing every agent query through one data pipeline.
Any agent that mixes volatile external state with stable domain knowledge can route between a live-fetch path and a pre-indexed retrieval path instead of over-caching or over-fetching.
AI agent architectures utilize sync paths for real-time collection and async paths for RAG knowledge bases.
Sync path provides live, up-to-the-second data extraction using an inference engine that understands pages semantically.
Async path uses Vector DBs as knowledge bases for complex queries requiring synthesis of historical information.