425 use cases · Updated
Source: public posts the editors have read, with a link and a date.
Agentguiden collects public reports of what people got an AI agent to do. The wording is ours. Each example names the tool, a prompt you can adapt, and a link to the original. We do not invent people, quotes or figures.
A homeowner had Claude, which monitors the inbox and reads a private document vault, check a renewal notice from an old insurer. Claude found two home policies on the same house for a year: the mortgage account had paid $5,292 to the old carrier and $2,883 to the new one. Claude searched 79 mailboxes, found no cancellation and drafted a backdated cancellation request. The refund is promised but not received, and the setup is homemade.
AnnaMarie Houlis at Moneywise asked Muse to prepare the purchase of a used 2004 Jeep Wrangler listed at 24,394 dollars. The agent found the price sat 3,800 to 5,900 dollars above a good deal, and that the dealer had already cut it by 1,500 dollars. It made a two-page PDF: open at 19,000, aim for 20,000 to 21,000 and walk away above 22,000. Muse made the plan, but could not negotiate with the dealer itself without more permissions.
VG Lab, a product unit at the Norwegian paper VG, has six staff and two consultants. It recently took over the Pent weather app, whose code was hard to build on.
Olivia was to run an AI workshop at a conference in September. In Claude Cowork Olivia dropped in a recent presentation to keep the organisation's branding, and dictated the brief. Claude tightened the structure and made the slides, which can be edited freely. A week before the conference the file had to be delivered as PPTX in a different aspect ratio, and Cowork converted it. A lot was changed and the speaker notes were heavily edited, but it saved time.
Applications, minutes and other texts you still stand behind.
VG Lab, a product unit at the Norwegian paper VG, has six staff and two consultants. It recently took over the Pent weather app, whose code was hard to build on.
Olivia was to run an AI workshop at a conference in September. In Claude Cowork Olivia dropped in a recent presentation to keep the organisation's branding, and dictated the brief. Claude tightened the structure and made the slides, which can be edited freely. A week before the conference the file had to be delivered as PPTX in a different aspect ratio, and Cowork converted it. A lot was changed and the speaker notes were heavily edited, but it saved time.
Shared on r/ChatGPT: a user making an audio-led drama series alone had about 700 sound effects and could not find the right file. The user asked ChatGPT to build a new folder structure in Dropbox, rename the files and make a local web page for searching and playing the effects. It took about 15 minutes with a couple of design rounds, but the saving of hundreds of hours is the user's own estimate and only holds if the series continues.
Tax, electricity and other money questions you check against the source.
A homeowner had Claude, which monitors the inbox and reads a private document vault, check a renewal notice from an old insurer. Claude found two home policies on the same house for a year: the mortgage account had paid $5,292 to the old carrier and $2,883 to the new one. Claude searched 79 mailboxes, found no cancellation and drafted a backdated cancellation request. The refund is promised but not received, and the setup is homemade.
AnnaMarie Houlis at Moneywise asked Muse to prepare the purchase of a used 2004 Jeep Wrangler listed at 24,394 dollars. The agent found the price sat 3,800 to 5,900 dollars above a good deal, and that the dealer had already cut it by 1,500 dollars. It made a two-page PDF: open at 19,000, aim for 20,000 to 21,000 and walk away above 22,000. Muse made the plan, but could not negotiate with the dealer itself without more permissions.
Teslarati, a site that covers Tesla, SpaceX and Elon Musk, had a Grok Bot agent go through the family phone bill of about 230 dollars a month. The agent called Verizon, spoke to a support rep and got a loyalty credit restored.
Dinner, a shopping list and small jobs at home.
The developer behind the alex0ptr account on Hacker News started a morning podcast of his own 18 months ago, then became a father and lost his free time. AI helped him finish AI Gude.
A user on Hacker News gave all the medical records of a father in law with pancreatic cancer to an agent and made it the coordinator. The patient was passed between several doctors and nurse practitioners with no overall view. The agent found the wrong pain medication on the wrong schedule, and a voice transcription error about genetic markers that changed the treatment plan. The oncologist called it a team member, but the patient's reserves were already drained.
A user on Hacker News runs Hermes locally and buys all groceries online. A separate program pulls email receipts into a database. Based on how often and when an item was last bought, Hermes works out what needs restocking. Every week it logs in to the store, books a delivery slot and adds the items to the cart. If something runs out, a photo of the barcode is enough, but the user had to build the receipt program first.
Trips someone planned or booked with an agent, and what they still had to approve.
A friend came home from Bali and complained about how hard it was to split costs on a group trip. That made a developer build and launch an app for it in 15 days with Codex and a free web hosting service. User accounts came later. Hosting costs nothing, and the domain cost 10.46 dollars. The post shows the app, but does not say how many people use it or how much the developer did by hand.
The author used Claude as a logistics tool for a three week trip to Japan. He collected everything he wanted to do himself, put it in a dedicated project with a master document and a decision log, and split the plan into fixed points and flexible pools. Claude checked sunrise times, train times and opening hours, and grouped shops geographically. He warns against giving it full control, because its own suggestions were superficial and touristy.
ThunderX is taking the train from Prague to Budapest on 23 December with two adults and two kids. Grok Bot first booked seats with ÖBB for 393.60 euros on a fare with free cancellation.
Error messages, scripts and small automations you check yourself.
Rohit is a security engineer who went through every time his coding agent said all tests pass over the last 30 days. Of 239 claims, 125 were backed by a passing test run after the last edit.
The developer behind the TESSERACT account is building a desktop pet app. The developer told Codex to hook itself up to the design program Marvelous Designer and make about 10 outfits.
A developer pulled out which pages used the most server time over the last day, then set four Grok agents to work, one per site. Each agent first took a baseline and tested three possible explanations. In 20 minutes they found and fixed, among other things, a database query that went from 550.7 to 0.45 milliseconds and a page that went from 228 to 11. He has shared the setup as open source.
Content and a look at public pages, without invented figures.
Marketing professor Andreas Fuchs recorded a keynote in one take and let a video agent built in Claude Code do the rest. The agent cut it without clipping words, made a graphic for every sentence, added captions, logo and music, and rendered 16:9 and 9:16 versions. Setup takes about one hour and uses free tools such as ffmpeg. The author shows the first step openly, but the rest needs a signup, and time per video is not stated.
From Anthropic, the company behind Claude. According to Anthropic, someone on its marketing team spent one to two days every week gathering numbers for the weekly report. Now Claude Cowork runs a scheduled job on Sunday evening, reads last week's report, meeting notes and Slack, pulls numbers from the data warehouse and leaves a folder with tables and suggested focus areas. When numbers do not match, it flags the gap. The work now takes up to two hours.
A founder makes 10 to 20 new ad videos a day with an AI pipeline. Claude writes scripts with A/B tests for hooks and calls to action, the founder reads each script into their phone line by line, and Codex edits the videos in DaVinci Resolve through an MCP connection. Videos that convert well get a 500 dollar daily budget on Meta. Codex edits, but the founder records everything, and the numbers on Meta decide which videos get money.
Routines in a small business, as a public report describes them. Check the original.
Víctor Mollá is CEO of the software company Gurusup. The company cancelled HubSpot and saves 24,000 euros a year.
Pat Simmons asked Dots, OpenAI's always-on agent, to help sell the laser printer repair company run by Simmons's father. It built a website with the sale plan: buyer shortlist, what transfers, price, sales process and the first 30 days. It also made a spreadsheet of 136 potential buyers, each with a fit score, and will check in with the father weekly. Simmons does not write that any buyer was contacted or that anything sold, but the plan is ready.
A convenience store owner in Poland built a system with n8n, Telegram and Google Sheets where six employees log shift start and end. They can also see shift information and correct mistakes. If something is entered wrong, the flow stops until it is fixed, and the employee and the owner get a message. It has run for about three months. Schedules are still made by hand, and the time saved is not measured, but the owner notices a lighter workload.
Letters and messages from NAV and Altinn, read next to the original.
John B. Manos is a lawyer in the US and was voting the next day.
A retired Army aviator built a free assistant for people leaving the military, after a friend was about 6 months from retiring. It lives in a public GitHub repo that any agent can read, whether you use ChatGPT, Grok Bot or Muse. The agent interviews you about your branch, date, family and where you plan to live, and builds your timeline from official sources. Every rule links to its page, and when it finds no source, it says so.
A municipality has set up "Søknadsskriveren" (the application writer), a ChatGPT chatbot that drafts an application for funds for a club or association. It asks for relevant information before it moves on, and can also help with ideas for solving a problem. Free use gives ten inputs before a pause of a few hours, and you must create a user. The page does not say how the drafts have been received.
A homeowner had Claude, which monitors the inbox and reads a private document vault, check a renewal notice from an old insurer. Claude found two home policies on the same house for a year: the mortgage account had paid $5,292 to the old carrier and $2,883 to the new one. Claude searched 79 mailboxes, found no cancellation and drafted a backdated cancellation request. The refund is promised but not received, and the setup is homemade.
AnnaMarie Houlis at Moneywise asked Muse to prepare the purchase of a used 2004 Jeep Wrangler listed at 24,394 dollars. The agent found the price sat 3,800 to 5,900 dollars above a good deal, and that the dealer had already cut it by 1,500 dollars. It made a two-page PDF: open at 19,000, aim for 20,000 to 21,000 and walk away above 22,000. Muse made the plan, but could not negotiate with the dealer itself without more permissions.
VG Lab, a product unit at the Norwegian paper VG, has six staff and two consultants. It recently took over the Pent weather app, whose code was hard to build on.
Olivia was to run an AI workshop at a conference in September. In Claude Cowork Olivia dropped in a recent presentation to keep the organisation's branding, and dictated the brief. Claude tightened the structure and made the slides, which can be edited freely. A week before the conference the file had to be delivered as PPTX in a different aspect ratio, and Cowork converted it. A lot was changed and the speaker notes were heavily edited, but it saved time.
Applications, minutes and other texts you still stand behind.
VG Lab, a product unit at the Norwegian paper VG, has six staff and two consultants. It recently took over the Pent weather app, whose code was hard to build on.
Olivia was to run an AI workshop at a conference in September. In Claude Cowork Olivia dropped in a recent presentation to keep the organisation's branding, and dictated the brief. Claude tightened the structure and made the slides, which can be edited freely. A week before the conference the file had to be delivered as PPTX in a different aspect ratio, and Cowork converted it. A lot was changed and the speaker notes were heavily edited, but it saved time.
Shared on r/ChatGPT: a user making an audio-led drama series alone had about 700 sound effects and could not find the right file. The user asked ChatGPT to build a new folder structure in Dropbox, rename the files and make a local web page for searching and playing the effects. It took about 15 minutes with a couple of design rounds, but the saving of hundreds of hours is the user's own estimate and only holds if the series continues.
Tax, electricity and other money questions you check against the source.
A homeowner had Claude, which monitors the inbox and reads a private document vault, check a renewal notice from an old insurer. Claude found two home policies on the same house for a year: the mortgage account had paid $5,292 to the old carrier and $2,883 to the new one. Claude searched 79 mailboxes, found no cancellation and drafted a backdated cancellation request. The refund is promised but not received, and the setup is homemade.
AnnaMarie Houlis at Moneywise asked Muse to prepare the purchase of a used 2004 Jeep Wrangler listed at 24,394 dollars. The agent found the price sat 3,800 to 5,900 dollars above a good deal, and that the dealer had already cut it by 1,500 dollars. It made a two-page PDF: open at 19,000, aim for 20,000 to 21,000 and walk away above 22,000. Muse made the plan, but could not negotiate with the dealer itself without more permissions.
Teslarati, a site that covers Tesla, SpaceX and Elon Musk, had a Grok Bot agent go through the family phone bill of about 230 dollars a month. The agent called Verizon, spoke to a support rep and got a loyalty credit restored.
Dinner, a shopping list and small jobs at home.
The developer behind the alex0ptr account on Hacker News started a morning podcast of his own 18 months ago, then became a father and lost his free time. AI helped him finish AI Gude.
A user on Hacker News gave all the medical records of a father in law with pancreatic cancer to an agent and made it the coordinator. The patient was passed between several doctors and nurse practitioners with no overall view. The agent found the wrong pain medication on the wrong schedule, and a voice transcription error about genetic markers that changed the treatment plan. The oncologist called it a team member, but the patient's reserves were already drained.
A user on Hacker News runs Hermes locally and buys all groceries online. A separate program pulls email receipts into a database. Based on how often and when an item was last bought, Hermes works out what needs restocking. Every week it logs in to the store, books a delivery slot and adds the items to the cart. If something runs out, a photo of the barcode is enough, but the user had to build the receipt program first.
Trips someone planned or booked with an agent, and what they still had to approve.
A friend came home from Bali and complained about how hard it was to split costs on a group trip. That made a developer build and launch an app for it in 15 days with Codex and a free web hosting service. User accounts came later. Hosting costs nothing, and the domain cost 10.46 dollars. The post shows the app, but does not say how many people use it or how much the developer did by hand.
The author used Claude as a logistics tool for a three week trip to Japan. He collected everything he wanted to do himself, put it in a dedicated project with a master document and a decision log, and split the plan into fixed points and flexible pools. Claude checked sunrise times, train times and opening hours, and grouped shops geographically. He warns against giving it full control, because its own suggestions were superficial and touristy.
ThunderX is taking the train from Prague to Budapest on 23 December with two adults and two kids. Grok Bot first booked seats with ÖBB for 393.60 euros on a fare with free cancellation.
Error messages, scripts and small automations you check yourself.
Rohit is a security engineer who went through every time his coding agent said all tests pass over the last 30 days. Of 239 claims, 125 were backed by a passing test run after the last edit.
The developer behind the TESSERACT account is building a desktop pet app. The developer told Codex to hook itself up to the design program Marvelous Designer and make about 10 outfits.
A developer pulled out which pages used the most server time over the last day, then set four Grok agents to work, one per site. Each agent first took a baseline and tested three possible explanations. In 20 minutes they found and fixed, among other things, a database query that went from 550.7 to 0.45 milliseconds and a page that went from 228 to 11. He has shared the setup as open source.
Content and a look at public pages, without invented figures.
Marketing professor Andreas Fuchs recorded a keynote in one take and let a video agent built in Claude Code do the rest. The agent cut it without clipping words, made a graphic for every sentence, added captions, logo and music, and rendered 16:9 and 9:16 versions. Setup takes about one hour and uses free tools such as ffmpeg. The author shows the first step openly, but the rest needs a signup, and time per video is not stated.
From Anthropic, the company behind Claude. According to Anthropic, someone on its marketing team spent one to two days every week gathering numbers for the weekly report. Now Claude Cowork runs a scheduled job on Sunday evening, reads last week's report, meeting notes and Slack, pulls numbers from the data warehouse and leaves a folder with tables and suggested focus areas. When numbers do not match, it flags the gap. The work now takes up to two hours.
A founder makes 10 to 20 new ad videos a day with an AI pipeline. Claude writes scripts with A/B tests for hooks and calls to action, the founder reads each script into their phone line by line, and Codex edits the videos in DaVinci Resolve through an MCP connection. Videos that convert well get a 500 dollar daily budget on Meta. Codex edits, but the founder records everything, and the numbers on Meta decide which videos get money.
Routines in a small business, as a public report describes them. Check the original.
Víctor Mollá is CEO of the software company Gurusup. The company cancelled HubSpot and saves 24,000 euros a year.
Pat Simmons asked Dots, OpenAI's always-on agent, to help sell the laser printer repair company run by Simmons's father. It built a website with the sale plan: buyer shortlist, what transfers, price, sales process and the first 30 days. It also made a spreadsheet of 136 potential buyers, each with a fit score, and will check in with the father weekly. Simmons does not write that any buyer was contacted or that anything sold, but the plan is ready.
A convenience store owner in Poland built a system with n8n, Telegram and Google Sheets where six employees log shift start and end. They can also see shift information and correct mistakes. If something is entered wrong, the flow stops until it is fixed, and the employee and the owner get a message. It has run for about three months. Schedules are still made by hand, and the time saved is not measured, but the owner notices a lighter workload.
Letters and messages from NAV and Altinn, read next to the original.
John B. Manos is a lawyer in the US and was voting the next day.
A retired Army aviator built a free assistant for people leaving the military, after a friend was about 6 months from retiring. It lives in a public GitHub repo that any agent can read, whether you use ChatGPT, Grok Bot or Muse. The agent interviews you about your branch, date, family and where you plan to live, and builds your timeline from official sources. Every rule links to its page, and when it finds no source, it says so.
A municipality has set up "Søknadsskriveren" (the application writer), a ChatGPT chatbot that drafts an application for funds for a club or association. It asks for relevant information before it moves on, and can also help with ideas for solving a problem. Free use gives ten inputs before a pause of a few hours, and you must create a user. The page does not say how the drafts have been received.