dsh-learning-plugin

If you are new to the DeepSeek Harness plugin system and the concepts of extension points, lifecycle management, and config validation still feel abstract, dsh-learning-plugin is a compact starting sample built for you. It registers a single learning_greet tool, yet packs every core extension mechanism into one runnable path.

The four extension points it demonstrates are: declaring platform service dependencies via inject; structurally validating deployment configuration with Schemastery; registering a tool through ctx.tools.register() so it is automatically revoked when the plugin unloads; and using defineTool() to derive both parameter and output types from a single schema, eliminating redundant type declarations. Each step is backed by annotated code that makes the plugin API easy to grasp in one read-through.

The project is deliberately scoped as a learning exercise, not a diagnostic or production-operations plugin. It is well suited for developers who want to internalize the Harness plugin mechanics before writing a real plugin, and for teams looking for a lightweight onboarding example.