Jeffrey Ling

100 posts

Jeffrey Ling

Jeffrey Ling

@spdling

Building @cognition past @Waymo, @GoogleAI

Katılım Ekim 2016
365 Takip Edilen1.4K Takipçiler
Jeffrey Ling retweetledi
Ryan Carson
Ryan Carson@ryancarson·
This is how I’m currently running my startup with @DevinAI + @openclaw The browser testing in Devin is mind-blowing. I was trying to duct tape and jerry-rig all this stuff together with Playwright + uploading videos to PRs and all sorts of stuff and Devin just does it all e2e. Wild. I didn't show how I'm using @linear, which I am using for issue tracking. I have a "land" skill that I tell Devin to use whenever all the browser testing is done and all the CI goes green and it just merges the PR
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swyx
swyx@swyx·
Reupping the @devinai explainer now that everyone is suddenly loving kloud koding because @ryancarson said so (btw devin usage has grown >50% MoM every month this year, it has shocked even scott)
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swyx@swyx

@cognition new post on joining Cognition at it's $10b Series C: The Devin is in the Details swyx.io/cognition

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Matthias
Matthias@MatthiasWagner·
A lot of people claim to have invented Agentic coding But you know who really invented it…the @cognition team! Engineers laughed at them when @DevinAI originally launched in 2024 Devin is the first AI software engineer, the first agentic coder, the first IDE free software engineering workflow! The best part: they are still years ahead of any other agentic coding tool you heard of
Ryan Carson@ryancarson

Paid $500 for @DevinAI - liking it so far. You can tell this team is much further than other agent labs when it comes to being truly remote-first. Very mature, advanced tooling and it just works across all surfaces (iPhone, Slack, Browser, GitHub, Linear). I was tired of trying to hand-connect everything with a custom setup of Open Inspect + Codex + Linear. When you look at your hourly effective rate, it stops making sense trying to hand-build all this stuff. Nvm the all the maintenance hours you need to put in. I'll keep using Devin 100% for the next week and report back. So far, my PR shipping velocity is higher than before - so that's good obv.

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Walden
Walden@walden_yan·
Many coding agents work locally. But @DevinAI is still the only one that’s built to help your team ship seamlessly across slack, linear, mobile, GitHub, and works with Datadog, notion, etc without hassle. Worth trying for your team if you haven’t in a while
Ryan Carson@ryancarson

Paid $500 for @DevinAI - liking it so far. You can tell this team is much further than other agent labs when it comes to being truly remote-first. Very mature, advanced tooling and it just works across all surfaces (iPhone, Slack, Browser, GitHub, Linear). I was tired of trying to hand-connect everything with a custom setup of Open Inspect + Codex + Linear. When you look at your hourly effective rate, it stops making sense trying to hand-build all this stuff. Nvm the all the maintenance hours you need to put in. I'll keep using Devin 100% for the next week and report back. So far, my PR shipping velocity is higher than before - so that's good obv.

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Ryan Carson
Ryan Carson@ryancarson·
Paid $500 for @DevinAI - liking it so far. You can tell this team is much further than other agent labs when it comes to being truly remote-first. Very mature, advanced tooling and it just works across all surfaces (iPhone, Slack, Browser, GitHub, Linear). I was tired of trying to hand-connect everything with a custom setup of Open Inspect + Codex + Linear. When you look at your hourly effective rate, it stops making sense trying to hand-build all this stuff. Nvm the all the maintenance hours you need to put in. I'll keep using Devin 100% for the next week and report back. So far, my PR shipping velocity is higher than before - so that's good obv.
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Simon Willison
Simon Willison@simonw·
Anyone know if it's possible to checkout two private repos at the same time in Claude Code for web? As far as I can tell it isn't, because all Git operations go through a local proxy which only allows authenticated access to the private repot that the session is attached to
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Gauri Gupta
Gauri Gupta@gauri__gupta·
can’t trust merging code without a Devin review anymore. Claude and Codex are great, but they don’t catch bugs the way Devin does. devin code review is OG. @cognition has built something special.
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Scott Wu
Scott Wu@ScottWu46·
This week 70% of all Devins were started by humans (webapp, slack, linear) and 30% were started automatically (API, and now scheduled + managed Devins) In a few months that probably flips to 30/70 the other way and within a year it'll be 10/90. What does it look like to run a truly agent-native dev team? -Handing whole project specs to a top-level agent that manages its subagents to do the groundwork -Agents that kick off automatically on Sentry/Datadog alerts and as first-line incident-response -Agents continuously running integration test / QA workflows and auto-investigating UX changes or performance issues And of course, all of the "eng scaffolding" needed to make this possible - comprehensive unit testing, good documentation, and a reproducible dev environment.
Cognition@cognition

Devin can now schedule itself. Run any task once, like feature flag cleanup, release notes, or QA. Then tell Devin to make it recurring, so that one good session becomes an automated workflow. Available now for all users.

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Dev Chheda
Dev Chheda@devmchheda·
>80% of prod commits are now made by Devin internally @cognition. We are at liftoff!
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Jeffrey Ling
Jeffrey Ling@spdling·
We're moving towards a world where agents are not just writing code, but managing entire software projects. Gastown was just the beginning... excited to see what new paradigms come out of this
Cognition@cognition

Devin can now manage a team of Devins. Devin will break down large tasks and delegate them to parallel Devins that each run in their own VM. Over time, Devin gets better at breaking down and managing tasks for your codebase. Available now for all users.

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Anna Mitchell
Anna Mitchell@annarmitchell·
Craziest unique-to-Devin experience that feels like an actual AI employee: I tag Devin in comments in my Google docs and ask it for edits. Because Devin has access to Slack it can even go find the relevant context. Then I can spy on what it's doing. In the Devin web app I can see Devin's computer. I see it clicking around in my doc, scrolling through, and addressing my comments one by one.
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Cognition
Cognition@cognition·
Want to save $15-$25? Devin Review is a completely free PR review tool, with no signup required. Devin Review also supports: • Autofix • Smart diff organization • Copy and move detection • Codebase-aware chat Just swap github with devinreview on any PR to get started ⬇️
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Jeffrey Ling
Jeffrey Ling@spdling·
We have a sick new model cooking. Try it in @windsurf
Cognition@cognition

We are sharing an early preview of our ongoing SWE-1.6 training run. It significantly improves upon SWE-1.5 while being post-trained on the same pre-trained model - and it runs equally as fast at 950 tok/s. On SWE-Bench Pro it exceeds top open-source models. The preview model still exhibits some undesirable behaviors like overthinking and excessive self-verification, which we aim to improve. We are rolling out early access to a small subset of users in Windsurf.

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swyx
swyx@swyx·
some illuminati somewhere decided today was Launch Everything Day but just sharing some personal commentary from this as an analyst: - Scott admits Devin didn’t even have internal PMF at the 2024 launch. took 6 months to get adoption at first enterprise customer. Models werent ready. trying out a lot of agent patterns. But: the form factor was right. Async agents are the Final Boss of agent ux. - Devin usage doubled every 2 months in 2025 per each enterprise after landing. Doubling rate has *accelerated* to every 6 weeks so far this year (!!) internal usage is now 4x 2025 peak. - Self serve sucked because repo setup was effectively not worked on (doesnt matter to enterprises if FDEs are just gonna set them up for you lol) - with Devin 2.2 that is now changing. Cog hired first designer 2 months ago (another lol). team did a crazy allhands 3 Sundays ago and decided to do a big sprint to catch up all the self serve UX debt that has been piling up. this means lots of polish but also integrating things with the new omnibox and seamlessly tying in devin review with devin main to “close the loop”. point being, this team has been building background agents since long before it was cool and honestly well before they were working. instead of chasing trend after trend in 2025 they found pmf and battle tested for the past year in the largest enterprises in the world - by the way the single most impt customer profile in coding. and now allow them to reintroduce themselves with a basically complete reworking of what its like to use Devin. again dont take my word for it - take my designer’s word who has been going absolutely fucking HAM because he now has his own senior engineer reading his figma and translating his vision to code. see screenshots. I’m feeling the agi myself. and… … look out for Devin 3.0 :)
swyx tweet mediaswyx tweet mediaswyx tweet media
Scott Wu@ScottWu46

x.com/i/article/2026…

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edison
edison@edis0n_zhang·
Devin testing has been a huge unlock. Here's a full uncut video of Devin testing a new banner it made in Windsurf. It did the full testing flow on its own - Built local Windsurf - Opening the developer console - Modifying local storage - Validating the alert is triggered upon refresh Of course, there's still rough edges (Devin fumbled around to open the developer tools), but the future may be closer than we think!
Cognition@cognition

Introducing Devin 2.2 – the autonomous agent that can test with computer use, self-verify, and auto-fix its work. Try it for free! We’ve also overhauled Devin from the ground up: - 3x faster startup - fully redesigned interface - computer use + virtual desktop ...and hundreds more UX and functionality improvements.

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Keşfet

@DevinAI @openclaw @linear @ryancarson @cognition @simonw @windsurf @elonmusk