DeepSeek Harness Plugin: dsh-codex-compaction

dsh-codex-compaction is a plugin for DeepSeek Harness designed to address the long-context bloat issue in Codex sessions. While preserving the official Basic Compaction mechanism, it provides an optional account-level native summarization interface, image replay fixes, and legacy compatibility support. Users can independently enable or disable native compaction in a session via a command. The plugin supports custom models and does not modify the core code. Installation requires a specific version of the DSH CLI, and a restart is needed for it to take effect. When in use, note the native retry limit and potential information loss in semantic recall.