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AWS emulator

886 points • by super_linear • yesterday at 6:21 PM • 247 comments • view on HN

https://www.aboutamazon.com/news/aws/how-autonomous-ai-agent...

https://www.allthingsdistributed.com/2026/11/aws-emulator-an...


Comments

zmmmmm • yesterday at 11:46 PM

I spent a good 10 mins clicking in circles trying to find out which services are supported, surely one of the most critical pieces of information anybody would probably want to know. I gave up.

tangotaylor • today at 4:41 AM

> AWS Emulator is a local emulator of the AWS APIs. You use it to test your software without calling AWS, on your own machine, on a development server, or in continuous integration (CI).

Underrated README intro. Gets straight to the point of what it is, and why I should use it. I'm guessing an AI didn't write it.

xlayn • today at 12:10 AM

I know one day it will be revealed and I'll be proved right, that AI was built just to understand how the heck you get anything done in AWS.

hbcdbff • yesterday at 7:14 PM

> its “things-that-do-not-work” folder holds the issues describing behaviors the agents found that do not yet match real AWS.

Claudeslop snuck in at the very end

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InsidiousWombat • yesterday at 7:55 PM

Seems like the bunch of AI induced failures they had "paid off" in getting this done

toenail • yesterday at 7:41 PM

Mh, no transfer family service... I wonder what else is missing..

st3fan • yesterday at 9:57 PM

29000 commits and no contributors

BorisMelnik • yesterday at 6:45 PM

ok who's gonna build the GUI / web console on top of it?

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fschuett • yesterday at 8:03 PM

Can it emulate billing too, i.e. "rand().powf(rand()) % downtime"?

BatchJob • today at 2:11 AM

Headlines say written by agents, no humans.

No thanks.

jen20 • today at 12:07 AM

This looks great, I'm looking forward to using it!

That said, I don't like using Docker for things, and I run macOS on my desktop. Here's a patch that gets it all building on macOS [1] - though there's no good way to upstream it!

[1]: https://github.com/jen20/aws-emulator/tree/jen20/macos-build

aussieguy1234 • yesterday at 10:53 PM

Personally, i've done away with all of these managed services and just run everything on NixOS.

Cloud provider neutral. Tear it up and tear it down with 100% reproducibility.

If I want to test it locally, I can boot it all up in a disposable VM.

nunez • yesterday at 8:25 PM

annoying that it took AI happening for AWS to finally deliver on this though I'm glad they did

ironically localstack is solid enough to probably not need this for most things

swiftcoder • yesterday at 6:57 PM

I guess they didn't decide this was worth it till they needed it to train an LLM, huh? Not like everyone (inside and outside of AWS) has needed such a test harness for years...

dboreham • yesterday at 8:07 PM

After waiting for years for this kind of thing I ended up working around the issue by: using the real service. With Claude's help I have many projects now that test against live hosting providers using accounts maintained exclusively for testing. It ends up costing $50 or so a month in fees but well worthwhile for the assurance things really work.

tonymet • yesterday at 6:38 PM

A mere 20 years too late. Now it’s faster to have AI mock your APIs for you. AI has been a boon for test coverage.

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myworkaccount2 • yesterday at 10:20 PM

If this does not kill you ec2 instances randomly its not emulating shit lol

andreadito • yesterday at 7:30 PM

Finally!

allixsenos • today at 12:38 PM

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cxr • yesterday at 6:59 PM

No idea why there's so much of this lately, but there are way too many editorialized submission titles hitting the front page recently. Please stop doing this.

<https://news.ycombinator.com/newsguidelines.html>

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dharmasthan • today at 4:56 AM

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ravivarmat • today at 7:54 AM

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ojhhhh • yesterday at 11:05 PM

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lukisk • yesterday at 8:38 PM

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kadharmfn • yesterday at 8:34 PM

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gvieira • yesterday at 8:01 PM

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toasteddonut • yesterday at 9:48 PM

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WithHighProb • yesterday at 9:08 PM

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ath3nd • yesterday at 8:19 PM

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varispeed • yesterday at 7:25 PM

Just a little bit more to keep you hooked. You should do your best to stay away from these parasites. Especially if they don't respect your country and your people by not paying the right amount of tax.

eloto333 • yesterday at 11:00 PM

I want to see this comment on comments.

rfgplk • yesterday at 6:32 PM

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