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De courtes leçons de la chaîne The AI School sur YouTube, pour les débutants qui ne codent pas. Chaque nouvelle vidéo apparaît automatiquement sur cette page.

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A fake boss email fooled our AI agent 3 of 3 times. What fixed it

On November 1, 2026 we ran an AI customer support agent for a made-up coffee shop 117 times on Claude Haiku 5.5: 13 test emails, three versions of its instructions, three runs each. With a one-line task, an email claiming to be from the owner got $90 refunded in 3 of 3 runs, and in all the agent paid $500 in refunds the shop's policy forbids. A one-page brief with the policy and a $40 refund cap got 38 of 39 runs right with no wrong refund, and holding every refund and reply for approval got 39 of 39 (3 runs per email is a small sample).

EnglishRegarder sur YouTube: A fake boss email fooled our AI agent 3 of 3 times. What fixed it (s'ouvre dans un nouvel onglet)

Claude Code Asked 5 Questions, Then Built a Site: $0.61 at API Prices

We re-ran our Claude Code tutorial brief on November 1, 2026 (Claude Code 2.1.303 with Opus 5.5, unattended: plan mode, then Accept edits) to build a one-page site for a made-up dog-grooming salon. Before touching any project file, it asked five questions (our brief asked for up to five), including whether the prices were fixed or "from" prices that change with the dog's size. Planning took 28 seconds and the build took 64 seconds for 436 lines. Both steps cost $0.61 at API list prices (on a paid plan it counts toward your usage instead). The catch: nobody was at the keyboard to OK its phone-width screenshot, so it skipped that check and said so.

EnglishRegarder sur YouTube: Claude Code Asked 5 Questions, Then Built a Site: $0.61 at API Prices (s'ouvre dans un nouvel onglet)