Ariel Alonso retweeted
Shipping more code is a profoundly stupid measure to celebrate.
Shipping useful and high-quality features is why we deliver software intensive systems.
At Anthropic, Claude now writes 80% of our code. Engineers ship 8x more code per quarter.
Side effect: Tests grew 10x. CI jobs up 25x in 6 months. Here's what helped us scale:
claude.com/blog/agentic-codi…
Ariel Alonso retweeted
Replying to @OrionSeven
Our participation in the syntax generation of software engineering is gone -- and good riddance. However, the rest, and most important part, of software engineering is still in full force.
Ariel Alonso retweeted
Replying to @ThePrimeagen
When the dust finally settles, and we all realize the discipline required to properly use agents, I think we will be looking at a productivity increase on the order of a factor of 2 to 5.
Ariel Alonso retweeted
I spent the weekend actually reading the Claude Code docs.
It's a rabbit hole.
CLAUDE.md files. MCP configs. Skills. Subagents. Hooks. Plugins. Agent Teams.
You could spend more time configuring Claude Code than building software.
All of it is productivity theatre.
The only thing that actually matters: think first, then give it focused, relevant context.
Ariel Alonso retweeted
Why did it have access? If a junior engineer takes down prod, it's never the junior's fault. That's an access and SDLC issue
Claude Code wiped our production database with a Terraform command.
It took down the DataTalksClub course platform and 2.5 years of submissions: homework, projects, and leaderboards.
Automated snapshots were gone too.
In the newsletter, I wrote the full timeline + what I changed so this doesn't happen again.
If you use Terraform (or let agents touch infra), this is a good story for you to read.
alexeyondata.substack.com/p/…
Ariel Alonso retweeted
I just nearly fell into a 50-year-old trap: waterfall.
"I'll plan everything upfront, feed the spec to the LLM, ship it all."
But specs→code isn't like a compiler. Some questions only get answered in code.
Note to self: Validate the risky parts first.
Ariel Alonso retweeted
The best DevOps tool is a calm, experienced senior engineer who's seen this problem before.
All the automation in the world can't replace someone who knows when NOT to automate something.
Ariel Alonso retweeted
How did we all decide that “pull request” was perfectly fine terminology? It’s a merge request and I’m tired of pretending otherwise
Ariel Alonso retweeted
Hear me out:
We should standardize rules files as...
CONTRIBUTING.md
Not CLAUDE.md, .cursorrules, copilot-instructions.md and all that BS
Ariel Alonso retweeted
Many of the most important “prompt engineering” skills are management skills: clearly understanding the task to be done & what information is needed to do it; explaining the task to the AI; giving useful feedback to improve outputs; & generalizing lessons learned into a process.
It is difficult for me to take any software update seriously that puts anything related to emojis in its top 10 of its release notes.

















