Kozuchi Agent: A Language-Agnostic Open-Weight Agent for Software Repair
Industrial software-engineering teams increasingly need LLM agents that turn bug reports into correct patches, yet benchmark-scale operation adds long horizons, tool-use discipline, context persistence, heterogeneous clusters, and evaluation reuse. We present Kozuchi Agent, a language-agnostic open-weight repair agent and CI-operated evaluation pipeline. Explicit phases, persistent state, deterministic tools, a model-independent action interface, and cross-agent test-time selection make runs auditable and repeatable. With locally hosted Qwen3.5-27B, no fine-tuning, and TTS@8, Kozuchi resolves 374/500 SWE-bench Verified instances on the official evaluator. Unchanged on Multi-SWE-bench Java...
| Authors | Mehdi Bahrami, Kosaku Kimura, Satoshi Munakata et al. |
|---|---|
| Primary category | cs.SE |
| Published | 16 August 2026 |
| Last updated at source | 16 August 2026 |
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