dsh-hello-plugin

Before building a complex DeepSeek Harness plugin, you need a small reference that confirms the entire loading pipeline works end to end. dsh-hello-plugin does exactly that: it prints a single greeting line to stderr on profile startup, adding no model tools and no chat UI elements, so you can verify in isolation that the plugin was injected correctly and its apply() hook fired on schedule.

As the minimal official example, it strips a DSH plugin down to its three essential pieces: the apply() entry point in index.js where business logic lives; the dsh.bundle.patch field in package.json that declares auto-activation; and the cordis.patch.yml file that inserts the plugin into a target profile, with the name field required to match the package name. Reading these three files together gives you a complete mental model of how plugin registration works.

This plugin is best suited for engineers learning the DSH plugin spec or teams that want a working hello-world before writing their first feature plugin. Pure JavaScript with zero runtime dependencies and no build step, it lowers the barrier as much as possible, and changing the greeting text then restarting the profile is all it takes to confirm the loop is closed, making it a natural starting point for onboarding a new developer or validating a DSH installation.