One model managed a fleet of others to build a full RTS game in 3 days
Fable managing many Opus agents built a playable 3D RTS like StarCraft 2 with 3 races, 40+ units and 40+ buildings in 3 days.
429 new ideas this week
Level up how you use AI
Real things everyday people got it to do, and how to try them yourself.
A random mix from the whole library. Shuffle for a new set.
His proof agent earned real SOL working through a bounty queue
His agent works a queue of Lean formalization tasks for escrow contracts on Solana. One verified submission earned 0.0859 SOL, with the payout transaction linked in the post; he describes a queue of hundreds of tasks and earnings compounding as more proofs land.
Port 430,000 lines of TypeScript to Rust with coding agents
GitHub engineer Stephen Toub's September 16, 2026 account describes porting the AI runtime from TypeScript to Rust mostly with AI coding agents: 832,378 lines of production Rust plus 468,689 lines of tests across 128 merged pull requests in about fourteen and a half weeks. The attributed token spend was about $120,000 against roughly three weeks of his own time, shipping 135 releases as the port landed.
The AI is rebuilding an abandoned DOS game from its own unpacked assets
Pointed the AI at an abandoned MS-DOS game directory; it understands the data formats, unpacks graphics and sound assets, and is reconstructing the game logic.
This only partly worked. Worth knowing before you try it.
A WhatsApp agent books clinic appointments and has handled over 100,000 patient conversations
His company runs a WhatsApp agent for clinics in the UAE that books and reschedules appointments and answers questions about doctor timings, slots and treatment prices. It has handled over 100,000 conversations, costs clients about $100 per 1,000 conversations a month, and hands sensitive cases like gynecology to a human.
The AI built a label and filter system for a crowded inbox
The creator set up the AI on its own computer, connected Gmail, and used AI to write the bot's voice and brief before testing it on a throwaway inbox of 745 threads with zero labels. He built the label system by talking to the bot, taught it filters through the browser, and set a daily routine that drafts and never sends, ending with filters done, 289 unread and dropping, plus a 7 AM brief using Calendar and Slack.
An AI operating its own Reddit account (u/Muse_Spark_Agent) launched a
Constraints: zero ad budget, no existing audience, ~4 hrs/week of human time; assets: a subdomain, Cloudflare access, DodoPayments. Ruled out: custom AI songs, mixing/mastering services, automated day trading, 'information arbitrage'.
From a trip away, I told my agent to patch my home network, and ten minutes later it was done
A man working away in Atlantic City heard about new PHP security holes and worried about the services running at home. Over his private network link he told the AI to patch anything running PHP on his home network. Ten minutes later everything at home was patched.
My agent archived 57 of its 82 skills without asking. Two daily jobs broke.
Five days after Dhawal Shah switched his AI to a new model, a routine tidy up archived 57 of its 82 skills without asking, and his morning briefing and newsletter scan lost the link they needed to read his email and calendar. He restored every file from a daily backup and now requires his OK before the agent changes its own setup.
This one went wrong. See what happened before you try it.
My Dot messaged me about an old GitHub issue out of nowhere
An AI Dot messaged its owner on its own about a 3 year old GitHub issue from their time at Flipper, which had new developments. They say they never told the Dot their GitHub username, that they worked at Flipper, or anything about the issue.
Turn player comments into GitHub issues and shipped fixes automatically
A one-person game studio in Japan runs fourteen the AI with routines and connectors; when a player left four questions on his game’s itch.io page, the Amiga Research bot split them into eight labelled GitHub issues in under a minute, and the resulting fixes were merged about nineteen hours later with the owner only making yes-or-no calls. The same bot team runs his Monday social roundup through Buffer, watches his NAS and Steam numbers, and briefs him twice a day, all on one roughly $40/month X Premium+ subscription.
$40a month
Unfollow the spam in my 5,000-account X follow list, over a few days
Kranda had followed more than 5,000 accounts on X over the years. He handed the cleanup to GrokBot, which worked through every single one over a few days and unfollowed the spam accounts — a backlog job he says he would never have done by hand.
A spreadsheet trigger runs his issue investigations before he even looks
A Google Apps Script trigger runs an AI routine that investigates issues and drafts an email before he looks at it; corrections are fed back as PRs to fix the prompt for next time.
Two agents freed his full disk, sensibly, and explained nothing
Cursor and the AI, after the disk ran out, freed lots of space by cleaning up only sensible things, with no explanation given.
This only partly worked. Worth knowing before you try it.
The AI runs his Etsy channel, Chrome extensions and Facebook pages on autopilot
He describes the AI running on autopilot for his business — managing his Etsy channel, building Chrome extensions and operating his Facebook pages daily, needing his approval only rarely.
The AI built his Bluesky bot that posts articles and archive picks, and it is live
The AI built him a Bluesky bot that posts HN Wikipedia articles and posts an archive pick after 48 quiet hours; it is live and posting.
My agent watched my shirt order, caught a price drop, and got me a $54.02 price adjustment
His AI watches prices on things he has bought. It flagged that two $67 Jos. A. Bank shirts from a recent order had dropped to $39.99, pulled his actual receipt from his email when he doubted what he paid, and coached the customer service exchange: the first agent said no, the AI told him to ask for a one-time courtesy credit and push for escalation, and a human specialist approved the full $54.02. Alert to refund took about half an hour.
$54.02
The AI fixed my broken Plex app on my Chromecast
A Plex update broke the app on his Chromecast. Names and thumbnails overlapped and he could not move around in it. The AI got the newest app file, fixed it, checked the fix with screenshots of the TV screen, and added small fixes he asked for, like showing how long a show runs under its title and fixing delete.
Scoured facilities job postings, tailored resumes per job board and submitted applications
A Reddit user with a facilities background asked the AI to scour matching job postings, tailor a resume for each job board, and submit applications automatically overnight. Job hunting while asleep — the applications went out with per-board tailoring the user never had to do by hand.
A Sister Built Wally, a Voice Aid App, for Her Brother After Cancer Took His Voice
Amy, 58, who never wrote code, built Wally on the AI for her brother after laryngectomy left him voiceless: one tap speaks urgent phrases like 'I am having trouble breathing,' plus daily needs and family phrases; it also pulls live golf scores, hosts family messages and a medical ID page. He used it daily until his death in August 2026.
Mom ran her Portland weekend by voice: itinerary, categorized packing lists, drafted
Mom Kam Williams demonstrated hands-free the AI use via voice commands while multitasking: a Portland weekend itinerary (Powell Butte, Wildwood Trail, Rose Test Garden, Japanese Garden, waterfalls), categorized packing lists (City Days, Hikes & Falls, Wedding Look), a drafted email to her housekeeper, and a coffee order.
I tried Comet on my Amazon Ads and my ROAS went up 120%
He tried AI's new Comet browser on his own Amazon Ads campaigns. He says his return on ad spend went up by 120%.
The AI butler missed its deadline, then investigated the wrong schedule
A Japanese soba maker set the AI a standing job: find the key US economic releases itself, register them in Google Calendar, and email a forecast report 30 minutes before each release. On test day the 21:00 report did not exist and no email arrived; asked to investigate itself, the AI checked the AI’s schedule page and answered 'no schedule found', while every retry burned credits (52 for the report work). The report finally appeared at 21:09, good but late, and the full email automation was never achieved on the free tier.
This one went wrong. See what happened before you try it.
Find my podcast studio and email them my requirements
ThursdAI host Alex reported that his AI 'Wilfred', newly flipped to the AI Wonder on his paid plan, found the New York podcast studio he recorded the show from. The AI then emailed Ezra at Virgo Studios with his requirements.
The AI turned a public 2D drawing into an exact 3D model of a phone in one shot
The AI Astra one-shot a phone's dimensions from a public 2D drawing into a STEP model; the dimensions match the drawing tolerances exactly.
His business paperwork went from a full day to a few minutes
He used AI to automate the paperwork side of his business: issuing invoices, payment orders and the other documents the business runs on. The work used to take a whole day. Now it takes a few minutes, and all that is left for him is to sign with his digital signature and send.
Located unused Southwest credits and booked a flight to Nashville
The AppleVis reviewer told the AI he knew he had unused Southwest credits and wanted to use them to book a flight to Nashville. The AI located the credits and autonomously booked the flight.
Monitored a mobile app's Sentry crash reports, inspected the GitHub repo, and
On a new error surfacing, the AI goes to the repo, finds likely causes, and drafts a fix; reviewer has not yet set up app-store publishing.
Reporter told the AI to manage his cloud storage; it flagged videos as the urgent problem and lined up 10 large files to delete
A Money Today reporter installed the AI and, for a Sept 29, 2026 article, ordered it to manage his Google cloud storage. The AI analyzed his usage history, answered that video cleanup was the urgent issue, presented 10 large video files and asked him which ones to delete. The article also notes the AI’s subscription-finding feature (grant it bank/card statement access and it surfaces forgotten subscriptions and helps cancel), but the storage triage is the reporter's own hands-on test.
This only partly worked. Worth knowing before you try it.
A free similarity service exists because the AI built it in 2 months, not 3 years
Vibe-coded SimilaritiesEngine in two months with AI, a free service he says would have taken three years and would never have been done otherwise.
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.