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Matt Pocock (TypeScript wizard, ex-Vercel): "Opus 5 got addicted to writing tests that just repeat the code back to itself." in a 22-min talk at AI Engineer Paris, Matt walks through how to stop AI PRs from turning your repo into a slop cannon: 5:30 → the tests AI...

174,215 次观看 • 18 天前 •via X (Twitter)

35 条评论

Squizer 的头像
Squizer18 天前

the reviewer-should-commit-not-comment point is underrated. most AI review setups still route fixes back through a human typing the same patch by hand, which defeats half the point of having a reviewer agent

Shoopy 的头像
Shoopy18 天前

spot on, reviewer that comments instead of committing just creates more work

Anders Abjorn | sales → AI 的头像
Anders Abjorn | sales → AI18 天前

Tests that echo the code are a quiet fail. I ask for a case that would break if the function lied. Mirror tests feel green and teach nothing.

Shoopy 的头像
Shoopy18 天前

"mirror tests feel green and teach nothing" is a great way to put it

Anders Abjorn | sales → AI 的头像
Anders Abjorn | sales → AI18 天前

Yeah, I believe so. 😊

Daniel Nim 的头像
Daniel Nim18 天前

The idea of making the reviewer fix things instead of just leaving comments is huge!

Shoopy 的头像
Shoopy18 天前

right? half my review time used to be reading bot comments i then fixed myself

half_cto 的头像
half_cto18 天前

I wonder what has he built? Ohh right he's just talking, thats enough.

Shoopy 的头像
Shoopy18 天前

fair to judge the ideas, not the guy. the reviewer-commits-fixes part works regardless of who said it

half_cto 的头像
half_cto18 天前

yeah you are right, i'm just puzzled what have people been doing if this is something new? I get dude is "announcing skills" for "real engineers" though is he one? If i would like to be influencer there is a lot to learn from him, can't deny that.

Shoopy 的头像
Shoopy18 天前

full 3-layer system in one image ↓

Alexey Samoylov 的头像
Alexey Samoylov18 天前

That guy has a slop skill set and nothing more. He knows very little about the AI pull request review.

Shoopy 的头像
Shoopy18 天前

what would you do differently? genuinely curious what's working for you on AI PR review

Alexey Samoylov 的头像
Alexey Samoylov18 天前

I got my own AI review solution with the "bring your own agent" approach. It writes summaries and comments, performs issues classification, does the PR gating on the github/azure/gitlab.

Abdul Ahad 的头像
Abdul Ahad18 天前

@grok from this video explain step by step the whole process so i can replicate it

Crio Songo 的头像
Crio Songo18 天前

These points hit exactly the pain points of current AI coding. I'm gonna go watch this full talk right now.

Shoopy 的头像
Shoopy18 天前

the part at 15:34 is the one to steal first, reviewer commits instead of commenting

Akos 的头像
Akos18 天前

this was happening with older models too - 4.8. we also figured out what was the problem and created domain specific review agents which fixed the entire set of the problems!

Shoopy 的头像
Shoopy18 天前

domain-specific reviewers is the move. how many did you end up with, one per area of the codebase?

chuplung 的头像
chuplung18 天前

this talk is way more useful than most ai coding advice

Shoopy 的头像
Shoopy18 天前

glad it landed, practical > theoretical every time

࣪˖ sofi z, 的头像
࣪˖ sofi z,18 天前

Couldn't agree more

Shoopy 的头像
Shoopy18 天前

thanks

soooz 的头像
soooz18 天前

5 is the slide number. The permission story is still the footnote.

Shoopy 的头像
Shoopy18 天前

true, permissions get the headlines but the tests are the silent risk

qwinsi 的头像
qwinsi18 天前

Thx for sharing this broski, saved

Shoopy 的头像
Shoopy18 天前

appreciate it

CryptoNinjas 的头像
CryptoNinjas18 天前

Watching that exact part now and circular test generation is way too common lately.

Shoopy 的头像
Shoopy18 天前

circular tests are everywhere now. green CI, zero coverage of what the code actually does

GratefulPle₿ 🏴‍☠️⚡️ 的头像
GratefulPle₿ 🏴‍☠️⚡️18 天前

Ex vercel? Wasn’t it ex-voice coach now building hobby apps with ai?

Shoopy 的头像
Shoopy18 天前

both actually. voice coach before he got into typescript, then vercel. the talk still slaps either way

Konrad 的头像
Konrad18 天前

what happend to him

Shoopy 的头像
Shoopy18 天前

reviewed one too many AI PRs lol

Alex Martossy 的头像
Alex Martossy18 天前

Saying Matt is ex-Vercel is like how Lex Fridman is ex-MIT.

Gaetan Semet 的头像
Gaetan Semet18 天前

Thanks @mattpocockuk for this good video. Couple remarks: - "coding standards belong in a separate review agent" => yes, this confirms recent changes in all major "SDD" frameworks, converging to way I called "The Canonical Implementation Loop". You have a Coder agent and a Reviewer Agent. - "AI reviewer shouldn't comment. it should commit the fixes" => ok for the review once the PR is created, but I won't say that for the in-loop reviewer (I called "Task Inspector"). If you start an implementation loop in the reviewer, it can starts drifting from its goal of findings all the missed acceptance criteria and do it properly. It can "try" to do the fix if it is very small issue, to avoid restarting a new coder to fix the issue, but things like incomplete feature, it should sent the task back to the coder agent.

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