Reddit thread: Which agent harness do you use and why?

Which agent harness do you use and why?

A Reddit thread in r/LocalLLaMA asks which agent harness people use. Top comments mention DeepSeek Harness, OpenCode, and zcode, all paired with Qwen3.8-27B. One user says DeepSeek Harness auto-compacts context, handling 4M+ tokens within a 128K window while retaining key details. OpenCode is praised for being simple and model-agnostic. A zcode user claims it matches or beats ChatGPT 5.3. The post does not disclose technical benchmarks or detailed comparisons.