Inject Guidance Rules into Agents on Demand with dsh-stream-rules

`dsh-stream-rules` is a DeepSeek Harness community plugin maintained by jiesou: The rules do not occupy system context normally, and only inject steering guidance when tool calls are matched. By default, `agent.inject()` is used to queue SYSTEM NOTICE, and if `reject: true`, the first call will be rejected. This article verifies the installation command, rule writing and capability boundaries based on the directory page and GitHub.