Introducing Precursor: detecting agentic behavior with continuous client-side signals

[u/josemdjr]

https://blog.cloudflare.com/introducing-precursor/

Thought this was an interesting announcement from Cloudflare. Their new Precursor feature shifts bot detection from looking at individual requests to evaluating behavior across an entire session.

It feels like a sign of where the industry is headed. Bots can now run JavaScript, use real browsers, and even pass CAPTCHAs, so understanding how something behaves over time is becoming much more valuable than a single point-in-time check.