DSH plugin development as an on-demand agent skill: official docs mirror, version-compatibility matrix, migration seams, measured pitfalls, plus a scaffolder, checker and pack verifier CLI.

DeepSeek Harness (dsh) 从 0 到 1 深度手册：安装/插件开发/性能调优/实测案例/同模型多 Agent 实测对比（中文 + 英文 PDF）

DeepSeek Harness 终极指南：快速入门、资源推荐、精选插件与实用工具 ｜The Ultimate Guide to DeepSeek Harness: QuickStart, Resources, Plugins&Toolkit