Show HN: AICF – a tiny "what changed" feed for AI/RAG (v0.1 minimal core)
5 mnswdhw 1 8/22/2025, 8:16:02 PM github.com ↗
I’m proposing AICF (AI Changefeed) — a minimal, web-native way for sites to expose append-only change events. Instead of crawlers or RAG systems re-embedding everything, they can refresh only the sections that changed.
Discovery: a /.well-known/ai-changefeed JSON points to a feed.
Feed: an append-only NDJSON file with just 4 required fields (id, action, url, time) plus optional hints (anchor, checksum, note).
Goal: cut wasted crawling/embedding while keeping docs/pricing/policy pages fresh for AI/agents.
Spec & examples here: https://github.com/mnswdhw/AICF/blob/main/spec/AICF-v0.1.md
Would love feedback: is the minimal core (anchors only, no chunks/vectors/push yet) the right starting point? Would you use this in your docs/RAG stack?
Reduce server cost due to web-crawlers, bots can just check the changed feed
Gives exactly what content to be exposed to bots
Can be metered per content wise and per call wise (legal protection of websites)
Can be used with MCP servers
Push and Pull based subscription supported
Maintain and update embeddings for fresh data
Financial agents with live market data, legal agents with regulatory updates
Shopping agents tracking your wishlist prices, travel agents monitoring flight changes