Field-tested AI workflows, failure post-mortems and real ROI data from small cross-border businesses in China.https://houkongfan.net/https://houkongfan.net/field-notes/when-not-to-use-an-ai-agent/https://houkongfan.net/field-notes/when-not-to-use-an-ai-agent/The hardest part of deploying AI in a small business is not building the agent. It is knowing the five kinds of decisions where a plain if-else rule is faster, cheaper, safer, and never wrong.Sun, 23 Aug 2026 00:00:00 GMThttps://houkongfan.net/field-notes/why-ai-employees-die-after-the-demo/https://houkongfan.net/field-notes/why-ai-employees-die-after-the-demo/The gap between an impressive demo and a system a 20-person trading company actually relies on is not model quality. It is everything around the model.Sun, 23 Aug 2026 00:00:00 GMT