Unverified50% confidenceFactExact time
The Webhook callback approach only works on the premise that the receiver is addressable, but agent clients often run behind NAT, on local loopback addresses, or in temporary containers, without public-network inbound capability.
1
Sources
50%
Confidence
Long-term
Relevance
10/17/2026
First Seen
Sources
The "Reply" Loop of Human-in-the-Loop Agents: Architectural Thoughts on Secure Asynchronous Callbacks
redditr/LangChain10/17/2026
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