DeepSeek Harness Plugin: dsh-queue-merge (Queue Merging)

By default, DeepSeek Harness processes queued messages one by one, causing the agent to repeatedly revise and consume a large number of tokens. The dsh-queue-merge plugin provides a “merge” strategy that consolidates multiple queued messages into a single formal prompt for unified processing, significantly improving efficiency. Its core features include transactional lossless merging with automatic rollback on failure; protection of attachments and system messages; a queue identity guard to prevent unintended operations; language following the UI settings; and retention of traceability to the original messages. During installation, you must set `defaultMode: merge` in the configuration, and the plugin takes effect only when the queue contains two or more messages.