Harness profile

Qwen Code

Apache-2.0TypeScript27.2k GitHub stars (Aug 2026)

MakerQwenLM (Alibaba)

LicenseApache-2.0

StackTypeScript

ModelsOpenAI, Anthropic, Gemini and Qwen APIs plus local Ollama/vLLM

Runs whereYours to host

Behavior changed byMarkdown instruction files

Durable memoryConfigurable

Drives other agentsNo

Best for

Qwen models, where it is the best-fitting harness available.

Main weakness

Not universal in practice despite the multi-provider label - bugs pointing it at other models, and tool-call format mismatches across the ecosystem.

Official docs / repo · Not sure? Run the chooser

Profile facts from the winder.ai comparison of nine agent harnesses (table checked Aug 19, 2026; DeepSeek Harness star count updated Sep 25, 2026 from the live GitHub repo) and vendor documentation. If something here is stale, the vendor page wins - tell us via the kit signup and we will fix it.