New version of HTTP response 420 Requester Impaired

https://datatracker.ietf.org/doc/draft-richardroda-420requesterimpaired/

Thanks for the feedback on this.  I have an update for the draft that addresses the technical shortcomings of the original. Specifically,  it defines how an Impaired requester can assert it has been remediated.

This code is primarily intended to be used in a system-to-system scenario.  Specifically, as a way to deal with the "AI gone rouge" scenario that is possible when a LLM hallucinations get acted upon.

There is a fundamental difference between a LLM requester and other misbehaving automations such as webcrawlers.  The LLM is an actual user of the system performing tasks autonomously for its ultimate human user.  This error code attempts to define a framework to signal an LLM that it's outside of its guardrails and a mechanism for it to recover.