The inertia of switching. At least for me, being able to maintain the same UX and configuration for agentic coding is a benefit. I have access to internal models at work where I use a LiteLLM proxy with Claude Code, so no Anthropic models, but I can maintain the same .claude between personal and work machines. Though I'm definitely open to a non-Anthropic harness if it's a clear win.

Fair question. I haven’t benchmarked it against other harnesses, so I can’t say it’s better.

My reason for using claude code is continuity - I use it for dev (it’s also the tool of choice for most people I work with), and it already has the context. And it supports both frontier and OSS models.