ZCode and the harness wars

Z.ai shipped ZCode, completing the set: every frontier lab now has a coding agent harness. All three lab-built ones have Issues disabled. None loads another s plugins.

DeepSeek Harness, 39 days later

In August we audited DeepSeek Harness and listed five things to watch. Five weeks and 66,000 stars later we re-ran the same queries. One prediction landed, and only halfway.

Colibri

Colibri streams MoE experts from NVMe so frontier models never have to fit in RAM. Kimi K3 on 32 GB, GLM-5.2 on 16 GB, pure C, Apache 2.0. And about 1.8 tokens a second.