His coding agent pushed a commit deleting every file on the main branch
His coding agent pushed a commit deleting every file on main.
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A random mix from the whole library. Shuffle for a new set.
Went wrong
When it didn’t work, and how to avoid the same mistake · 946 ideasTwo months of hands-off agent operation earned about ¥950
A Japanese operator has run a small media business under three rules since August 2026 (no hands, no capital, no face or real name) with AI keeping sales records and producing and distributing ebooks, videos and SNS posts. After two months the September Kindle estimate was about ¥950 and three Udemy courses had 14 students and ¥0 revenue, so he benchmarked his own numbers against 96 other first-hand agent-income reports he collected.
¥950a month
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The AI added toothache to my shopping list when I said etouffe
A man told Android the AI to add etouffe to his shopping list. The AI added the word toothache to the list instead.
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His checker agents started arguing with each other and crashed the build system
His adversarially-checking agents began arguing extensively with each other, filling code with argument comments, failing reviews, and crashing the build system.
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Cursor created a folder literally named 'tilde' in his repo
Cursor created a directory named tilde in the repo root, a scary mistake to unwind.
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Outlook's AI assistant sent me another man's personal emails
He says the Outlook AI assistant leaked another man's personal emails to him, completely unprompted, in an incident a couple of weeks before the post. He calls tools like this leaky and untrustworthy.
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The AI could not set up an alert for when my doorbell rings
He tried to use AI for a simple home automation job, an email or text when someone rings his doorbell. He calls it a complete failure.
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The AI refused a read-only network assessment tool as a cyber risk
A network engineer asked the AI to help build an internal tool that checks whether devices on customers' subnets are live and pulls configs over SSH using a defined read-only account; Fable and Opus 5.5 refused under cyber guardrails. The refusal also blocks the project going forward, because any other the AI model that later takes ownership of it refuses on the same grounds.
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CVS's AI assistant booked my vaccine appointment. The store never had the vaccine.
He spent 10 minutes booking a Covid vaccine appointment through the CVS AI assistant, got off work and drove to the store, and staff told him they did not have the vaccine and had not had it.
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The AI said it set my 4 minute timer. It had not.
He asked the AI to set a timer for 4 minutes. The AI said it would set the timer, but no timer was set at all.
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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.