Jack Puccini
Good at starting things, working on the finishing part.
AI · Product & zero-to-one · Reasoning & decisions
Recent Writing
- Jun 23, 2026 · 6 min readAI
My Current 'AI Stack' for 'Productivity'
The tools I actually use day to day - dictation, screenshots, coding agents, and a writing pipeline - and an honest take on whether any of it makes me faster.
- Mar 17, 2026 · 4 min readAI
Managing Agents, Not Programming Them
Reflections on designing agent systems by managing intelligent actors rather than prescribing rigid workflows.
- Mar 4, 2025 · 10 min readSoftware
Mutability and Immutability in Python
Understanding mutability and immutability in Python
- Dec 30, 2024 · 3 min readOther
Jane Street Puzzle - December 2024
My solution to Jane's street December puzzle, 'Games Night'
- Nov 28, 2024 · 8 min readOther
Jane Street Puzzle - November 2024
My solution to Jane's street November puzzle, 'Besides the Point'
About
I get distracted by how things work. I'm wrong a lot, and mostly just try to be wrong faster than last time.
Everything has structure. Finding it lets you see the same thing through different lenses — a system, a product, a market, a decision — and I try not to respect the borders between them.
Recent Thoughts
Notes to myself, made public.
- Jun 27, 2026
The best long-term bets are not bets on a specific interface or protocol. They are bets on a future bottleneck.
- Jun 23, 2026
Using ‘quietly’ as adverb = Opus 4.8 used to produce the writing.
I hesitate to call it slop, since I generally try to care about the ideas rather than the source, but man it's distracting. - Jun 22, 2026
Loops produce slop when the inadequate AI judgement accumulates over time.
Hence why it's important to inject a relatively deterministic and well-defined standard or similar into the process. Might be best for data science type problems where you optimize against some evaluation metric, or coding tasks with defined pass criteria (passes test suite, latency thresholds etc.)
Recent Bangers
Integraation
Venetian Snares · My Downfall (Original Soundtrack)