agent runtime

DeepSeek Harness Explained: What dsh Is, How It Works, and What Is Still Rough

DeepSeek published its agent runtime on 13 August 2026 and it passed a hundred thousand stars in two days, but almost everything written about it was the install command. This is a plain English read of the source. What an agent runtime actually is, what everything is a plugin means in practice, the three layers inside every capability, the four modes, the security defaults, what the benchmark numbers really measure, and the rough edges nobody is listing.

Running an MCP Server Inside DeepSeek Harness: What the Bridge Carries, and When You Need a Plugin Instead

We pointed DeepSeek Harness at an MCP server we already ran and it worked without a line of new code. This is what the official bridge carries, what it quietly drops, where plugins get published, and the one reason a verification tool cannot live behind MCP at all: over MCP the model decides whether to call you, and a check the model can skip is not a check.

Everyone Open Sourced the Hands This Year. Nobody Open Sourced the Check

Agent runtimes got very good very fast. The thing that decides whether a change is correct across your other repositories did not get built at all. On cross repository blast radius, why AI code review misses it, and what a check actually needs.