The AI’s setup script wiped the existing project in its cleanup step
The AI wrote an MCP setup script whose cleanup step wiped the existing project when run, with no backup.
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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 · 971 ideasSpark Could Only Delete 1 of 200 Old Emails Before Rate Limits Stopped It
Asked to count then delete his 2016 emails, Spark could only extrapolate a count, asked for the exact range before acting, and moved just one of the requested 200 threads before rate limits forced it to offer batches of ten to fifteen or suggest Gmail's own client.
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The AI’s logo for my wife’s dental practice fell apart at print size. A designer fixed it in an hour.
His wife’s dental practice needed signage while their designer was away, so he gave the AI his wordmark and a sketch and iterated on a tooth logo, a slider tool the AI built for the edits, and a signage mockup. Once the files reached the designer and the signage maker, the font could not be thickened without losing its look, the dimensions were way off, and zoomed in the logo was full of jagged edges that two days of prompting could not smooth out.
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Built a web page in ~40 seconds that she would not use
Web page build scored 5/10: built in ~40 seconds but read like a first-pass concept, noticeably less developed than the AI’s output for the same job — and the finished file was hard to locate (hunting through Goals and Files).
This only partly worked. Worth knowing before you try it.
A plugin turned his small feature into 4 plans, 5 agents and a bigger bill
The Superpowers the AI plugin turned a small feature change into 4 plans and 4 parallel agents plus a verifier agent, burned many tokens and took longer; he uninstalled it.
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The AI ran his load tests and made up the cloud numbers instead of checking them
The AI with Datadog and CloudWatch MCPs ran load tests to find a throughput bottleneck but made up AWS and resource claims without checking sources.
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The AI merged straight to main and my production app broke for every user
The author usually works in Cursor and let the AI create a pull request for the first time. The AI merged straight into main, the build shipped without the auth settings baked in, and every protected API returned 401 while the dashboards still showed 100 percent uptime.
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The AI is finding and pitching parenting creators for Goodnight Little Hero
He nearly canceled the AI at $200 a month for lack of value. Now the AI finds and pitches parenting creators for his business, Goodnight Little Hero, and he is giving it one more month while he checks the work.
This only partly worked. Worth knowing before you try it.
My system puts out three news episodes a day while I sleep, 6,400 episodes in, and under 250 people watch
His custom pipeline reads the day's newsletters, picks the stories, writes the script (The AI), renders a presenter with his cloned voice, builds the visuals (The AI), and publishes a video, a blog post and a LinkedIn post three times a day at about $3 to $3.50 an episode. Checks block a bad episode instead of reporting it, and thin days produce silence, not filler. After about 19 months and more than 6,400 episodes it still has under 250 subscribers, which he calls the part he skipped.
This only partly worked. Worth knowing before you try it.
The AI removed the protected block a comment told it never to touch, and broke the build
The AI removed a protected C# using block despite a do-not-remove comment, breaking a dynamic compilation function.
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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.