Build Your Own Coding Agent Like Pi (With 1 Prompt)
Source title: Build Your Own Coding Agent Like Pi (With 1 Prompt). Source description: 🔗 Get all the resources free: https://aiengineer.co/start Coding agents like Claude Code, Codex, and Pi Agent can feel complicated, but the core architecture is surprisingly simple. In this video I break down how coding agents work, demonstrate the workflow behind my open-source agent Neo, and build a working coding agent from scratch in a single Go file. This is harness engineering. I walk through the agent
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Source title: Build Your Own Coding Agent Like Pi (With 1 Prompt). Source description: 🔗 Get all the resources free: https://aiengineer.co/start Coding agents like Claude Code, Codex, and Pi Agent can feel complicated, but the core architecture is surprisingly simple. In this video I break down how coding agents work, demonstrate the workflow behind my open-source agent Neo, and build a working coding agent from scratch in a single Go file. This is harness engineering. I walk through the agent
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The title and description alone do not establish the agent autonomy level.
Agents In Use pipeline: video selected by TypeSafe Jev using source title/description only; recording and outcomes not independently verified.
Credit: Owain Lewis
Source published 4 Aug 2026
Source checked 14 Oct 2026
Tools and topics
Claude · Codex
video · agent-demo
Editorial completeness: 75/100. Measures documented fields, not agent performance or verified outcomes.
Video notes
Owain Lewis · YouTube
- Source title: Build Your Own Coding Agent Like Pi (With 1 Prompt)