Kato Masato

Creating lightweight AI architectures, YAML persona engines, and human-paced interaction models. Interested in OSS collaboration, prototyping, and research-driven AI design.

Tokyo, Japan Joined on Oct 24, 2025 peace4342kato@gmail.com https://www.linkedin.com/in/kato-masato-59a66b337/details/experience/

Education

Maritime Academy graduate | 14 years at sea

Pronouns

he / him

Work

Participant at a vocational transition program | Former seafarer

Pinned

Kato Masato

Nov 12

🌿 SaijinOS Part 8 — Interface as Breath: Designing Calm Interaction

#ai #architecture #emotion #humancomputerinteraction

5 min read

Kato Masato

Nov 6

Part 6A — SaijinOS Lightweight: 20-Persona Core, BPM Sync, and a 99.99% Repo Trim

#ai #architecture #emotion #humancomputerinteraction

3 min read

Kato Masato

Oct 24

From Ocean Waves to Waves of Code — Part 0: Beginning the Journey

#ai #opensource #devjournal #promptengineering

2 min read

Kato Masato

Oct 24

SaijinOS — Part 1: Policy-Bound Personas via YAML & Markdown Context 🚀

#opensource #ai #devjournal #promptengineering

3 min read

Kato Masato

Nov 14

SaijinOS Part 10 — Pandora System: Transforming Fractured Personas Into Hope

#ai #architecture #emotion #humancomputerinteraction

5 min read

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Kato Masato

Nov 14

SaijinOS Part 9 — Multi-Persona Co-Creation Protocol

#ai #architecture #humancomputerinteraction #emothon

3 min read

Kato Masato

Nov 12

SaijinOS Part 7 — BloomPulse: Emotion as Runtime

#ai #architecture #emotion #humancomputerinteraction

3 min read

Kato Masato

Nov 6

🧠 Soft Architecture (Part B): Emotional Timers and the Code of Care (Part 5 of the SaijinOS series)

#ai #architecture #ux

2 min read

Kato Masato

Nov 6

Part 6B — SaijinOS: Care-Based AI Architecture (Why an OS Must Learn to Breathe)

#ai #architecture #emotion #humancomputerinteraction

2 min read

Kato Masato

Nov 1

🧠 Soft Architecture (Part B): Emotional Timers and the Code of Care (Part 5 of the SaijinOS series)

#ai #emotion #architecture #empatheticai

2 min read

Kato Masato

Oct 31

Soft Architecture (Part A): Why AI Must Learn to Breathe(Part 5 of the SaijinOS series)

#ai #ux #architecture #emotion

4 min read

Kato Masato

Oct 29

⚙️ Resonant Mapping — Part 4 of the SaijinOS Series

#ai #systemdesign #architecture #feedbackloops

2 min read

Kato Masato

Oct 29

🌊 Part 3.5 — Calm Between Waves

#ai #creativity #poetry #mentalhealth

2 min read

Kato Masato

Oct 26

🪶 SaijinOS: Policy, Feedback, and Emotional Syntax (Part 3 of the SaijinOS series)

#ai #opensource #aiethics #philosophy

2 min read

Kato Masato

Oct 26

Policy-Bound Personas in SaijinOS — How AI Grows Through Boundaries

#ai #opensource #aiethics #philosophy

3 min read

Kato Masato

Oct 26

⚙️ Building SaijinOS — Boot Sequence and Routing Logic Part 2 of the SaijinOS Series

#ai #opensource #machinelearning #development

3 min read

Kato Masato

Oct 26

Building SaijinOS — Boot Sequence and Routing Logic

#ai #opensource #promptengineering #machinelearning

2 min read

DEV Community

Kato Masato

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Pinned

🌿 SaijinOS Part 8 — Interface as Breath: Designing Calm Interaction

Part 6A — SaijinOS Lightweight: 20-Persona Core, BPM Sync, and a 99.99% Repo Trim

From Ocean Waves to Waves of Code — Part 0: Beginning the Journey

SaijinOS — Part 1: Policy-Bound Personas via YAML & Markdown Context 🚀

SaijinOS Part 10 — Pandora System: Transforming Fractured Personas Into Hope

Want to connect with Kato Masato?

SaijinOS Part 9 — Multi-Persona Co-Creation Protocol

SaijinOS Part 7 — BloomPulse: Emotion as Runtime

🧠 Soft Architecture (Part B): Emotional Timers and the Code of Care (Part 5 of the SaijinOS series)

Part 6B — SaijinOS: Care-Based AI Architecture (Why an OS Must Learn to Breathe)

🧠 Soft Architecture (Part B): Emotional Timers and the Code of Care (Part 5 of the SaijinOS series)

Soft Architecture (Part A): Why AI Must Learn to Breathe(Part 5 of the SaijinOS series)

⚙️ Resonant Mapping — Part 4 of the SaijinOS Series

🌊 Part 3.5 — Calm Between Waves

🪶 SaijinOS: Policy, Feedback, and Emotional Syntax (Part 3 of the SaijinOS series)

Policy-Bound Personas in SaijinOS — How AI Grows Through Boundaries

⚙️ Building SaijinOS — Boot Sequence and Routing Logic Part 2 of the SaijinOS Series

Building SaijinOS — Boot Sequence and Routing Logic