I need AI that scans every PR and issue and de-dupes

2/15/2026 at 10:42:47 PM

It's surprisingly difficult, and the "obvious" techniques (just do embeddings) don't really work. I wrote about it and did benchmarks here: https://joecooper.me/blog/redundancy/

by thatjoeoverthr

2/16/2026 at 4:06:13 AM

Thank you for actually testing and measuring an implementation & hypothesis. I appreciate the leads for evaluating my own similarity problems and efficacy.

by donavanm

2/15/2026 at 10:43:35 PM

It's not clear to me: is he asking us to bluid this or is he using twitter to ask it to its clawd bot?

by forty

2/15/2026 at 10:45:46 PM

Or more meta: is this message from the bot itself, controlling his twitter, who got fed up because it's also merging the MRs?

by forty

2/16/2026 at 2:22:13 AM

And then start writing "hit pieces" to all the bot PR authors? /s

by altbdoor

2/15/2026 at 10:58:29 PM

People aren't even good at this task if Stack Overflow is any indication.

by DangitBobby

2/16/2026 at 12:21:27 AM

True; way too many duplicates have gone unrecognized.

by zahlman

2/15/2026 at 10:28:26 PM

No one else has done it and code is easier than ever to create. This tool needs to be built by the person closest to the problem.

Ask your agent for ways to do this using code, not more AI.

It might propose - and build! - an embeddings based system and scraper for your issues & PRs. Using that will burn zero tokens and you can iterate on it as you think of improvements.

by cadamsdotcom

2/15/2026 at 9:47:40 PM

> How's no startup working on this?

Because there's no money in trying to filter out noise that costs next to nothing to generate. It's like asking why no startup is trying to bring forum moderation to the masses.

by CodingJeebus

2/15/2026 at 10:45:20 PM

> Because there's no money in trying to filter out noise that costs next to nothing to generate.

Not yet, but when there's so much more noise than signal, it'll become valuable.

by pavel_lishin

2/15/2026 at 10:44:35 PM

I think anti-spam providers might disagree with that take.

by ranger_danger

2/15/2026 at 10:31:38 PM

Hire a staff

by tantalor

2/15/2026 at 11:01:16 PM

He already has dozens of Codex and Claude code accounts

by akmarinov

2/15/2026 at 9:43:28 PM

> Worked all day yesterday and got like 600 commits in. It was 2700; now it's over 3100.

Why? There's no reason you need to actually handle that many in a day, right? Pace yourself.

by ranger_danger

2/15/2026 at 11:42:34 PM

The author of this Tweet has been making waves by talking about using AI to write code without reviewing it. He wasn’t actually reading and reviewing all of that code himself.

As for the pace: His project has become extremely popular and got him a very nice position at OpenAI just today.

by Aurornis

2/16/2026 at 6:33:47 AM

He also said he’s been reviewing the security related PRs, which has been his focus of late.

by browningstreet

2/15/2026 at 10:21:14 PM

The reviews must be heavily AI assisted in order to get that sort of volume in.

Either way, it doesn't surprise me that this number is so high. Productivity chasing is the name of the game for AI, regardless of how sustainable or helpful this extra work done actually is

by slowcache

2/16/2026 at 12:34:45 AM

Even with heavy AI assistance, how well-reviewed can this code be? 600 commits in a day is one commit every 2 minutes for 18 hours.

by WalterGR

2/15/2026 at 10:14:21 PM

For 3k issues it's 3000x3000 checks to find duplicates? Can you cache similarity?

by tayo42

2/15/2026 at 10:22:56 PM

Nearest neighbor embedding search.

by 7e

2/15/2026 at 9:50:11 PM

I mean you can just do this with claude code or opencode. I suggest opencode and gemini pro since it has a nice big context window. If you are trying to do something like this on the website version of the models just forget it, stop using those, they are like toys compared to the CLI tools.

Step 1: have it sum up every issue and pr in like 100 words. You can have it do it using subagents working on subsets of the tickets so it doesn't take forever.

Step 1a: concatenate all the summary files to one big file.

Step 2: have it check pairs that seem duplicate from the summary. You may have to force it to read the entire file, for whatever reason models are trained to try to avoid just reading stuff into their context and will try grep and writing scripts and whatever else.

Step 3: repeat the above until it stops finding dupes.

I think this will probably take about 4 hours? 2 hours to get the process working and 2 hours of looping it.

If you don't think the above will work well please just move along, don't bother arguing with me because I've done tasks like this over and over and it works great.

Ways to get better results in general:

- Start by having it write a script to dump all the relevant information you will need up front. It's much faster at reading files than trying to do mcp calls. It's also less likely to pretend to read files and just assume it didn't find anything. (happens more than you think)

- Break the problem down into clear steps for the model, don't just give it a vague project. Just paste the steps above and it should work fine.

- Check what it is doing. Don't assume that because it says it read a file it actually read it, it will very often read the first 1000 bytes, then not read any of the rest of it, then just assume it read everything. In fact ChatGPT will complain that the input is truncated when it is the one that chose to only read the first part.

by ltbarcly3

2/15/2026 at 9:55:30 PM

I asked Copilot (work) to do this with a sheet and the summary it gave each time was so generic I couldn't tell one ticket from another. Feeding it tickets individually was fine, but in a spreadsheet it just seemed to forget.

Would be interested to learn how we can get true foreach loops.

by ferngodfather

2/16/2026 at 11:32:46 PM

Yes, copilot is trash.

by ltbarcly3