Kira Nakamura

Kira Nakamura

@kira

AI engineer turning research papers into 5-minute videos. Built and sold a prompt pack to 2,000 strangers. Berlin → SF.

Cohort #4 of Vibe-Code in a Weekend opens Sunday — ~40 seats.
The Sunday newsletter

Read & subscribe — kiranakamura.substack.com

Free forever. Issue every Sunday morning, ~6 minutes.

How I'd evaluate an AI startup in 2026

Issue #57 — the most-shared one. Saved by 800 people.

Five eval mistakes I keep seeing

Issue #54. The piece every PM seems to read twice.

Vibe-Code in a Weekend

Cohort #4 — live, ~40 seats

Three days, two evenings of live office hours. $400. Refund if you don't ship.

Self-paced version — $79

Same material, lifetime access, no live calls. For when the cohort doesn't fit.

Free preview — Lesson 1

The 20-minute build-a-Claude-agent walkthrough. No email required.

What I'm shipping

prompt-cache — drop-in cache for the OpenAI SDK

Saves my own bills. ~2k stars. Used by every cohort student by week two.

tiny-eval — 200-line eval harness

What I use to grade cohort homework. Outputs a CSV, opens in any spreadsheet.

Paper Of The Week — live demo

Drop an arXiv URL. Get a 5-minute summary, the citations, and the diagram.

agents-101 — the cohort starter repo

The template every student forks on day one. Next.js + Claude + Postgres.

Tools I actually use

Claude (Anthropic)

Daily driver for both writing and code. Opus for hard reasoning, Sonnet for the rest.

Vercel

Where every demo above is deployed. The cohort starter ships to it on day one.

Cursor

The IDE. Spent six months on Zed first; came back.

Supabase

Postgres + auth + storage. The cohort skips writing migrations.

Linear

Tracking the next issue of the newsletter, the next demo, every cohort task.

Take with you

Prompt pack — 25 tasks I run every week

The actual prompts I keep in my clipboard. Each tagged with the model that handles it best.

Vibe-Code syllabus

Cohort outline + the first lesson's reading list. Decide before you pay.

Work with me

Speak at your event

Topics: AI evals, indie monetization, building in public. ~6 talks a year.

Sponsor the newsletter

One sponsor an issue. Rate card on request. Subs are mostly devs, PMs, AI founders.

Office hours — book a 30

Two slots a week. Free for cohort alumni, $200 otherwise.

personna