I Tested DeepSeek Agent Harness Against Codex and Claude Code
Source title: I Tested DeepSeek Agent Harness Against Codex and Claude Code. Source description: 🔗 Get the resources free: https://aiengineer.co/start/ 💬 Community: https://aiengineer.co DeepSeek released an agent harness where everything is a plugin, including the UI. That means you can enable or disable tools, tune the agent loop, build your own extensions, and add entirely new interfaces on top of the agent. In this video I walk through setting it up, using it, and building on top of it. I
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Source title: I Tested DeepSeek Agent Harness Against Codex and Claude Code. Source description: 🔗 Get the resources free: https://aiengineer.co/start/ 💬 Community: https://aiengineer.co DeepSeek released an agent harness where everything is a plugin, including the UI. That means you can enable or disable tools, tune the agent loop, build your own extensions, and add entirely new interfaces on top of the agent. In this video I walk through setting it up, using it, and building on top of it. I
Reported by Owain LewisMore details
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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 22 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: I Tested DeepSeek Agent Harness Against Codex and Claude Code