Building with Claude Code

Learning portfolio

Evolving my product design craft & exploring how work changes when more people can build.

Name Tomomi Sasaki
Updated March 10, 2026
Mood Tired
Actively building
No.NameFor / WhatCommits
01
StackHouse↗ A card-based whiteboard for online workshops
Emotions at WorkWeb app
 02
Learning Portfolio (this site)↗ A content site to track of my AI build projects and resources
PersonalAstro static site
03
Come In A voice-based tool to practice interrupting the flow of a conversation
Coaches, facilitatorsWeb app
Everything else
No.NameFor / WhatStatus
04
GestalterGPT A teacher and thinking partner for the use of Gestalt in leadership and organizational development. Ask Tomomi for the link.
iGold peersCustom GPT
Live
05
Gestalter - Resistance Reps A scenario-based practice tool for spotting resistance in the workplace.
Coaches and OD peersWeb app
Live
06
Learning Log A set of Claude Skills to generate a topline report of what I did with Claude Code that day
PersonalWorkflow experiment
Live
07
GroundWork A diagnostic tool to identify assertions and assessments
Emotions at WorkWeb app
On pause
08
Solutions Based Coaching A test to see how hard it would be to turn this conversation into an app.
CoachesWeb app
Retired

Updated March 4th, 2026 — 18:46

Where I am

Based in Amsterdam. Working independently as a consultant — mostly with organisations navigating growth, restructures, or the messy middle of culture change.

A good chunk of this year has been spent building: shipping small tools, learning to think in systems, and getting more comfortable at the infrastructure layer.

What I'm working on

  • Gestalter Suite — a set of tools for OD practitioners who want to bring Gestalt principles into their practice without a PhD in theory
  • This portfolio — experimenting with what a learning log in public actually feels like
  • A newsletter archive that treats past writing as something worth finding again

What I'm reading

  • The Timeless Way of Building — Christopher Alexander. Slow going, in the best way.
  • Working in Public — Nadia Eghbal. Thinking about what it means to build things openly.
  • A lot of writing about AI and labour. No single source — more like a fog of takes I'm trying to see through.

What's on my mind

The gap between knowing something intellectually and actually embodying it. I've been a practitioner long enough to know the theory — the harder work is noticing when I'm not living it.

Also: what does craft mean when the tools do more? I don't have a clean answer. But I think the question is worth sitting with rather than resolving too quickly.