skill-injector-plugin: Automatic Skill Injection for DeepSeek Harness

The DeepSeek Harness plugin skill-injector-plugin, maintained by Zenjibad, is designed to improve the efficiency of repeatedly and manually activating custom skills across multiple sessions. It supports automatically injecting user-selected skills either at session startup or with each request, offering two modes: "each-prompt" and "start-only". It also features a real-time skill registry, subagent support, and persistence across restarts. After installation, no configuration file is required; skills can be enabled by simply selecting them in the interface, greatly simplifying the persona-switching workflow.