Limestone Digital(@LimestoneHQ):An IBM engineer explained agent harnesses in 20 minutes at @aiDotEngineer, and it's the best tutorial you'll find anywhere. Tejas Kumar gave GPT-3.5 one job, upvoting a Hacker News post. The agent hit a login screen and still reported success, and he fixed it without changing the prompt. People are paying $500 for agent courses that teach less than this. Watch it, then read the article on the slow death of the enterprise below.

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Limestone Digital@LimestoneHQ

2026.09.24 11:30

An IBM engineer explained agent harnesses in 20 minutes at @aiDotEngineer, and it's the best tutorial you'll find anywhere. Tejas Kumar gave GPT-3.5 one job, upvoting a Hacker News post. The agent hit a login screen and still reported success, and he fixed it without changing the prompt. People are paying $500 for agent courses that teach less than this. Watch it, then read the article on the slow death of the enterprise below.