dsh-messages-sanitizer

In DeepSeek Harness, developing or loading local plugins can lead to tool dispatch crashes that leave orphaned tool_calls in the session log. These invalid entries cause all subsequent requests to fail with 400 INVALID_REQUEST errors, freezing the chat and disrupting workflow. The dsh-messages-sanitizer plugin tackles this issue head-on with a four-layer defense mechanism: it automatically synthesizes error tool results to continue conversations after crashes, prevents invalid arrays by preemptively adding missing tool responses, heals polluted logs by stripping dangling calls and folding duplicates, and provides fallback correction for all requests. This ensures the messages array remains valid, allowing chats to recover seamlessly without manual intervention.

This plugin is ideal for DeepSeek Harness developers, especially those building or debugging custom workflow plugins. It integrates smoothly into the development environment, automatically cleaning up crash artifacts so you can focus on feature implementation rather than session recovery. Whether you're a beginner or an experienced developer, if you've encountered chat freezes from tool failures, this tool offers practical relief.

Overall, dsh-messages-sanitizer enhances development stability and resilience, making tool dispatch failures less disruptive. It acts as a silent guardian, ensuring message flows stay smooth in the background and improving the overall development experience.