Brief, mostly signal

DeepSeek's agent harness is not a Claude Code clone

A plugin-based runtime defaulting to DeepSeek V4.1 Flash, with CLAUDE.md and AGENTS.md support. Its output matched Claude Code on one test task.

Read the source at xda-developers.com

What the research found

XDA hands-on of DeepSeek Harness, a plugin-based agent runtime defaulting to DeepSeek V4.1 Flash, with four modes and CLAUDE.md/AGENTS.md support; on one test task it produced byte-identical code to Claude Code.

Claims and how well the evidence supports them

DeepSeek Harness runs DeepSeek V4.1 Flash by default 99%
DeepSeek Harness has four modes: Standard, PCT, Minimal, Creator 99%
Agent instructions read from CLAUDE.md and AGENTS.md 98%
Harness produced byte-identical code to Claude Code on a test task 98%

Evidence

xda-developers.com https://xda-developers.com/tried-deepseeks-agent-harness-its-not-the-claude-code-clone-expected

Actionability rated low.