1. Zero Friction
From summon to action complete < 2 seconds. No loading screen, no login, no network request.
“Focus” is last era’s religion.
Today’s developer switches between a dozen contexts every day — writing code, reviewing PRs, answering messages, running three agents, scanning feeds, writing reports. This isn’t a deficiency. This is how you work. You are multi-threaded.
The real problem was never “you do too many things at once.”
The real problem is: the moment you switch away, the previous thread starts fading from your brain.
An hour ago you had a critical bug to fix. Three context switches later, it’s gone. Not because you lack discipline — because human working memory holds about 4 items, and you have 12 threads open.
Mutsumi doesn’t ask you to stop. Doesn’t ask you to close your browser. Doesn’t lecture you about “deep work.”
She does one thing: keeps all your threads visible in the corner of your eye, always.
mutsumi.json as they workSwitch contexts 40 times a day — it doesn’t matter. Every time you glance back, you see exactly what’s on your plate, what’s waiting, what your agents have already pushed forward.
Mutsumi is one component in a zero-friction workflow:
graph TD S["Summon Layer<br/>Quake terminal / tmux popup / Raycast"] --> V C["Control Layer<br/>AI Agents / CLI / scripts"] -->|"write"| M["Model Layer<br/>mutsumi.json"] M -->|"watch"| V["View Layer<br/>Mutsumi TUI"] V -->|"interact"| M| Layer | Role | Examples |
|---|---|---|
| Summon | Instant invocation | iTerm2 Quake, Windows Terminal Quake, guake, tmux popup |
| View | Visual thread table | Mutsumi TUI |
| Control | Thread creation | AI Agents, mutsumi add, shell scripts |
| Model | Persistent data | mutsumi.json — local, plain-text, Git-able |
She fills the View gap. The ecosystem provides the rest.
1. Zero Friction
From summon to action complete < 2 seconds. No loading screen, no login, no network request.
2. Peripheral
She lives at the edge of your vision. Not center stage. Not hidden. Like a clock on the wall.
3. Agent Agnostic
Not bound to any LLM or Agent. Any program that writes JSON is a legitimate Controller.
4. Hackable First
Users can trivially hack the data structure, theme, keybindings, and views.
5. Local Only — Zero network dependency. Data is files, files are local.
The Multi-threaded Individual:
Mutsumi (若叶睦) — from the Japanese “睦” (harmony, closeness). She doesn’t tell you what to do. She waits quietly, holding a sticky note covered with your threads. When you glance at her, she lifts the note a little higher. When you look away, she just waits there in peace.