Agent-Sin is a personal AI agent that handles the small daily chores quietly stealing your time — email, news, todos, "where did I put that?" searches across Slack and notes. Just ask in plain language. Agent-Sin turns your request into a reusable program (a "skill"), so the same task runs reliably, fast, and cheaply — every time. No prompt drift, no surprise bills.
Hey Product Hunt 👋
Maker here. I built Agent-Sin because I kept hearing about AI agents but couldn't find one that actually fit into my daily life.
The problem with prompt-based agents: same request, different result. Slow. And the bill keeps climbing.
So I took the opposite approach — let the agent write a small program for each task, and just run that program from then on. Stable, fast, cheap.
A few things you can ask it to do: • "Check Gmail every hour, surface only what needs a reply, archive the rest." • "Every morning at 9, send me today's todos and a news digest from my RSS feeds + NYT." • "Notify me when a Stripe sale comes in." • "Find that thing I mentioned last week — check Slack, Notion, and my notes."
It runs on Mac and Windows, supports local LLMs (free to run on a Mac mini or PC), and you can chat with it from Terminal, Discord, or Telegram.
Memory is stored as plain Markdown — you can open it, read it, edit it. No black box.
Would love to hear what you'd want your own agent to handle. Happy to answer anything 🙏
— Shingo
Half my Claude usage right now is glorified email triage. If something can take over that loop without me babysitting the prompt every two weeks, take my money.
If a generated skill slowly becomes outdated because an API, UI flow, or data format changes, does the Runtime detect degradation automatically, or does the agent need explicit user feedback before rebuilding the skill?
Great work!
Teaching an agent 'reusable skills' is a great way to handle repetitive workflows. Does the agent learn these by watching my screen, or do I need to define the logic manually?
About Agent-Sin on Product Hunt
“AI agent that handles repeated tasks through reusable skills”
Agent-Sin launched on Product Hunt on May 15th, 2026 and earned 78 upvotes and 6 comments, placing #33 on the daily leaderboard. Agent-Sin is a personal AI agent that handles the small daily chores quietly stealing your time — email, news, todos, "where did I put that?" searches across Slack and notes. Just ask in plain language. Agent-Sin turns your request into a reusable program (a "skill"), so the same task runs reliably, fast, and cheaply — every time. No prompt drift, no surprise bills.
Agent-Sin was featured in Developer Tools (512.4k followers) and Artificial Intelligence (468.5k followers) on Product Hunt. Together, these topics include over 161.6k products, making this a competitive space to launch in.
Who hunted Agent-Sin?
Agent-Sin was hunted by Shingo Irie. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Shingo Irie