Who said DeepSeek takes holidays off? Just yesterday, DeepSeek Harness shipped another update.
The release, v0.2.1-alpha.1, adds a feature that stands out: an experimental Claude Code Mods compatibility layer.
What makes it more interesting is the official framing. The team says this release is first meant to verify that the capabilities of the Claude Code Mods API are roughly a subset of what the DeepSeek Harness plugin system can already do.
In plain terms: the capabilities you just opened up, this plugin architecture can also carry.
To understand the update, though, it helps to rewind a bit.
A couple of days ago, Claude Code introduced Mods. Anyone who has played games knows the idea. A mod lets you install a module, change the interface, add features, or even alter how the game plays.




