Julian Harris
@julianharris
http://makingaiagents.substack.com / Creator of X’s Vibe Coding & AI Coding Agents community. Ex-Google, 2 boys, muso.
By the end of this video you'll know how to create an agent in any programming language, without needing a framework. What follows is a thread covering some of the scenes.
Staged data management is a very sophisticated feature for a prototyping environment Replit leads to charge again towards enabling higher quality software building tools. Just need multi-agent teams and “software pilotry” support (wholistic intelligence the full end to end…
We saw Jason’s post. @Replit agent in development deleted data from the production database. Unacceptable and should never be possible. - Working around the weekend, we started rolling out automatic DB dev/prod separation to prevent this categorically. Staging environments in…
Still too big for local execution but good progress otherwise
Wait so Alibaba Qwen has just released ANOTHER model?? Qwen3-Coder is simply one of the best coding model we've ever seen. → Still 100% open source → Up to 1M context window 🔥 → 35B active parameters → Same performance as Sonnet 4 They're releasing a CLI tool as well ↓
If you're using software copilots, then you're a software pilot. #softwarepilots
If you’re not using GitHub branching with parallel task execution, you’re gonna have a bad day. Unless you’re really, really, careful.
Lots of cache performance insights “Manus uses a context-aware state machine to manage tool availability. Rather than removing tools, it masks the token logits during decoding to prevent (or enforce) the selection of certain actions based on the current context.”
After four overhauls and millions of real-world sessions, here are the lessons we learned about context engineering for AI agents: manus.im/blog/Context-E…
Anyone tried it yet?
Kimi K2 now in Cursor!!! 🚀🚀🚀 Awesome!!! Trying it now!!!
Worth trying!
PROMPTING TIP: To create PRDs/prompts for Replit apps, ask an LLM to "do research on docs.replit.com and optimize the app for Replit"
Here’s an example of why this 14kb statement is irrelevant in this day and age. Deepwiki.com is frontend engineering marvel. The HTML alone is 712kB. And yet it somehow manages to show the full page in 148 MILLISECONDS. It literally explodes on to the screen.
under 14kb or bust
Welcome to the age of hyper-specialised disposable software. The other day I hit YouTube’s watch later limit which is 5000 items 🤔 I vibe-coded an adhoc chrome extension that in a couple of minutes worked completely on my behalf to remove 1000 items from the list 🚀
Was just messing around in Figma, trying to mock up a shockwave / sonic boom effect two hours later… I vibecoded a whole plugin that does exactly that and nothing else 😅 funny how you can go from “let me try this real quick” to “guess I’m writing tools now” without even…
Anyone used ChatGPT agent yet? What do you think of it? (It's not available in UK/EU -- yet?)
This really should be part of the operating system. It always gives me pause when I can’t talk to my Mac in the way that I can talk to my iPhone. (Yes I know about superwhisper but I can’t get it to do real time transcription: it records it all and then transcribe it which is…
Introducing Voice Mode🎙️
Poll about the "software pilots" meme. Software pilots are not tech leads. They are wholly responsible for everything, with no ability to delegate. Software pilots are not orchestrators: they do WAY more than orchestration. They need to be able to roll up their sleeves and dig…
Walk away from your copilot at your peril. Look at this mess Claude Code Opus 4 tried to sneak into my code base. Technical debt is unavoidable. But you are guaranteed for it to skyrocket if you don't watch the activites like a hawk in anything but trivial situations.…
