CreatorUK

Owain Lewis

Creator on YouTube

Former principal engineer and engineering director teaching Claude Code, Codex and AI agents to ship products.

Videos (18)

Owain Lewis · Oct 26, 2026

Claude Code · Harness engineering

Owain Lewis · Oct 12, 2026

Harness engineering · Tutorials & getting started

Owain Lewis · Oct 5, 2026

Claude Code · Harness engineering

Owain Lewis · Sep 21, 2026

Codex & OpenAI agents · Harness engineering

Owain Lewis · Aug 31, 2026

Harness engineering

Owain Lewis · Aug 22, 2026

Open harnesses · Comparisons & reviews

Owain Lewis · Aug 14, 2026

Skills, plugins & mods

Owain Lewis · Aug 4, 2026

Open harnesses · Harness engineering

Owain Lewis · Jul 25, 2026

Codex & OpenAI agents · Claude Code · Harness engineering

Owain Lewis · Jul 17, 2026

OpenClaw, Hermes & personal agents · Comparisons & reviews

Owain Lewis · Jul 9, 2026

Multi-agent orchestration

Owain Lewis · Jul 1, 2026

Harness engineering · Claude Code · Codex & OpenAI agents

Verified Oct 29, 2026