
Founder of @codemixdotcom - codemix is deep product understanding, shared across your team and your agents, always up to date, always authoritative.
York, United Kingdom
Joined August 2010
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Charles Pick retweeted
In the age of agents, systems of record have never mattered more. They’ve also never been less prepared for what’s coming.
Today, we’re announcing @attio's hybrid architecture, with the controls of application software at the scale of infrastructure.
To agents, Attio looks like a database, queryable in SQL - a language they're RL’d on. Unlike a database, the business logic, policies, and compliance sit behind the query.
This makes all of Attio’s data accessible by agents in the most powerful and flexible syntax. It gives GTM teams an order of magnitude more value from their time, with the full power of agents working across the entire customer lifecycle.
A new shape of software is here.
attio.ai/architecture
Charles Pick retweeted
Cynic news (a from-scratch strict-only ECMAScript engine):
- Temporal landed — all 3885 test262 fixtures pass
- New regex engine Perlex landed: 2–3× faster than libregexp; will fully replace it soon
Charles Pick retweeted
We’re gradually open sourcing key parts of the codemix stack, first up is codemix/graph - a fully type-safe, realtime, offline-first, reactive graph database that lives in a CRDT (Y.js), written in TypeScript.
Charles Pick retweeted
It’s (beta) launch day! codemix is a living spec for your product that’s always up to date. One shared source of truth for humans and coding agents about what your product is, and how it should work. Plan mode is over. Stale specs are dead. codemix is alive.
Charles Pick retweeted
Replying to @QandAinPublic @chribjel
Only a temporary glitch. We're in this interim stage where AI can tackle a lot of the old problems and we haven't discovered what the new problems are yet - it's not like we have reached the pinnacle of software, we're in a new era of discovery - more puzzles to solve, not fewer
Charles Pick retweeted
Ignore the doom mongering - this is the most exciting time to be a software developer. The TAM for software just got way bigger, hiring is up not down. There are shifts happening and we're all having to learn new things, but that's what you signed up for, that's what's exciting
Charles Pick retweeted
A few random notes from claude coding quite a bit last few weeks.
Coding workflow. Given the latest lift in LLM coding capability, like many others I rapidly went from about 80% manual+autocomplete coding and 20% agents in November to 80% agent coding and 20% edits+touchups in December. i.e. I really am mostly programming in English now, a bit sheepishly telling the LLM what code to write... in words. It hurts the ego a bit but the power to operate over software in large "code actions" is just too net useful, especially once you adapt to it, configure it, learn to use it, and wrap your head around what it can and cannot do. This is easily the biggest change to my basic coding workflow in ~2 decades of programming and it happened over the course of a few weeks. I'd expect something similar to be happening to well into double digit percent of engineers out there, while the awareness of it in the general population feels well into low single digit percent.
IDEs/agent swarms/fallability. Both the "no need for IDE anymore" hype and the "agent swarm" hype is imo too much for right now. The models definitely still make mistakes and if you have any code you actually care about I would watch them like a hawk, in a nice large IDE on the side. The mistakes have changed a lot - they are not simple syntax errors anymore, they are subtle conceptual errors that a slightly sloppy, hasty junior dev might do. The most common category is that the models make wrong assumptions on your behalf and just run along with them without checking. They also don't manage their confusion, they don't seek clarifications, they don't surface inconsistencies, they don't present tradeoffs, they don't push back when they should, and they are still a little too sycophantic. Things get better in plan mode, but there is some need for a lightweight inline plan mode. They also really like to overcomplicate code and APIs, they bloat abstractions, they don't clean up dead code after themselves, etc. They will implement an inefficient, bloated, brittle construction over 1000 lines of code and it's up to you to be like "umm couldn't you just do this instead?" and they will be like "of course!" and immediately cut it down to 100 lines. They still sometimes change/remove comments and code they don't like or don't sufficiently understand as side effects, even if it is orthogonal to the task at hand. All of this happens despite a few simple attempts to fix it via instructions in CLAUDE . md. Despite all these issues, it is still a net huge improvement and it's very difficult to imagine going back to manual coding. TLDR everyone has their developing flow, my current is a small few CC sessions on the left in ghostty windows/tabs and an IDE on the right for viewing the code + manual edits.
Tenacity. It's so interesting to watch an agent relentlessly work at something. They never get tired, they never get demoralized, they just keep going and trying things where a person would have given up long ago to fight another day. It's a "feel the AGI" moment to watch it struggle with something for a long time just to come out victorious 30 minutes later. You realize that stamina is a core bottleneck to work and that with LLMs in hand it has been dramatically increased.
Speedups. It's not clear how to measure the "speedup" of LLM assistance. Certainly I feel net way faster at what I was going to do, but the main effect is that I do a lot more than I was going to do because 1) I can code up all kinds of things that just wouldn't have been worth coding before and 2) I can approach code that I couldn't work on before because of knowledge/skill issue. So certainly it's speedup, but it's possibly a lot more an expansion.
Leverage. LLMs are exceptionally good at looping until they meet specific goals and this is where most of the "feel the AGI" magic is to be found. Don't tell it what to do, give it success criteria and watch it go. Get it to write tests first and then pass them. Put it in the loop with a browser MCP. Write the naive algorithm that is very likely correct first, then ask it to optimize it while preserving correctness. Change your approach from imperative to declarative to get the agents looping longer and gain leverage.
Fun. I didn't anticipate that with agents programming feels *more* fun because a lot of the fill in the blanks drudgery is removed and what remains is the creative part. I also feel less blocked/stuck (which is not fun) and I experience a lot more courage because there's almost always a way to work hand in hand with it to make some positive progress. I have seen the opposite sentiment from other people too; LLM coding will split up engineers based on those who primarily liked coding and those who primarily liked building.
Atrophy. I've already noticed that I am slowly starting to atrophy my ability to write code manually. Generation (writing code) and discrimination (reading code) are different capabilities in the brain. Largely due to all the little mostly syntactic details involved in programming, you can review code just fine even if you struggle to write it.
Slopacolypse. I am bracing for 2026 as the year of the slopacolypse across all of github, substack, arxiv, X/instagram, and generally all digital media. We're also going to see a lot more AI hype productivity theater (is that even possible?), on the side of actual, real improvements.
Questions. A few of the questions on my mind:
- What happens to the "10X engineer" - the ratio of productivity between the mean and the max engineer? It's quite possible that this grows *a lot*.
- Armed with LLMs, do generalists increasingly outperform specialists? LLMs are a lot better at fill in the blanks (the micro) than grand strategy (the macro).
- What does LLM coding feel like in the future? Is it like playing StarCraft? Playing Factorio? Playing music?
- How much of society is bottlenecked by digital knowledge work?
TLDR Where does this leave us? LLM agent capabilities (Claude & Codex especially) have crossed some kind of threshold of coherence around December 2025 and caused a phase shift in software engineering and closely related. The intelligence part suddenly feels quite a bit ahead of all the rest of it - integrations (tools, knowledge), the necessity for new organizational workflows, processes, diffusion more generally. 2026 is going to be a high energy year as the industry metabolizes the new capability.
Charles Pick retweeted
new post: where good ideas come from (for coding agents) sunilpai.dev/posts/seven-way…
thought about why some people cook with coding agents, and others bounce off. my take: llms are "thought completers" traversing idea-space - so good results come from good navigation: constraints, context, oracles, loops. I used steven johnson’s "where good ideas come" from as a rubric and mapped it onto coding agents. also a note about how "juniors" can adapt to this new feature, and what "creating software" looks like practically.
Charles Pick retweeted
🚀 Launch ze samples!
We've (finally) put the samples up on the web, in a fully functional preview app at samples.jsx.email/
If you were curious how jsx.email works, you can poke around without installing.
🐝 cool and give us a ⭐️ github.com/shellscape/jsx-em…
Charles Pick retweeted
Hi friends, I'm on the search for a new job. Looking for frontend JavaScript work. Something geospatial would be ideal, but open to other interesting problems. Retweets appreciated 🙏
Charles Pick retweeted
Here's a stab at visualizing actor communication in XState. It uses a force diagram that emits particles when an event is sent between two actors
Charles Pick retweeted
✨ Announcing XState Catalogue 0.1.0 ✨
Take the guesswork out of modelling state. Bootstrap your application logic with professionally designed state machines.
xstate-catalogue.com
And it's all open source ❤️
Charles Pick retweeted
A (terrible) way to familiarise myself with the new features in @typescript 4.1. Thinking of trying to implement a type-checker in a type-checker typescriptlang.org/play?ts=4…
Charles Pick retweeted
👉🏻 “This is a SQL database implemented purely in TypeScript type annotations.”
🔗 github.com/codemix/ts-sql
something, something, glory of Satan...

















