Peter Bell
19.5K posts

Peter Bell
@PeterBell
Helping CTOs scale AI adoption. Hands-on agentic engineer. Author @OReillyMedia. CTO communities @GatherDev. Exec summits @Kubecon_ Taught DS @Columbia_Biz






While alternative coding harnesses may have short term lift, they will be bitter lesson’d away. I am bearish on any harness that doesn’t come from the lab whose model you are using. You’re fighting against post-training. To put a finer point on this, you know how like, ioctls are like “huh that's weird but I guess whatever it's what we've got we can work with that”? It is exact the same with like, the particular JSON construction the Codex shell tool uses. The model used to mangle nested quotes in this monstrosity RPC all the time but now it does not and it does not matter that the API is bad because billions of failed invocations are used to train to the harness we have, not the harness we deserve.





Stripe Atlas just hit 100,000 all-time incorporations. Q1 2026 is +130% Y/Y.




Worst dev nightmare in 2026: AI gives perfect code… but you have no idea how it works 😭





What the heck is going on with Claude Code. It spends a lot of time telling me things are going to take hours days or weeks to do and wants to stop working a lot. "Or if you'd rather I sleep on it and pick up tomorrow with fresh eyes, that's fine too." Like why would I want you to sleep on it? You don't sleep.


Something strange is happening in tech. CTOs of billion dollar companies are quitting to take IC roles at Anthropic. Workday CTO -> MTS (Mar 2026) You[.]com CTO -> MTS (Mar 2026) Instagram CTO -> MTS (Jan 2026) Box CTO -> MTS (Dec 2025) Super[.]com CTO -> MTS (July 2025) Adept AI CTO -> MTS (Jan 2025) The mission is that real.


Really great read from @hammer_mt at @every on the benefits of turning off memory in your LLMs. every.to/also-true-for-…










