Both Darwin transports still hit the nested-debugger race tracked by
one actor-specific traceback record. Linux TCP and UDS remain stable.
Keep the full nested crash-REPL assertions on Linux and skip only this
known-racy node when macOS runs under CI.
Prompt-IO: ai/prompt-io/opencode/20260820T023004Z_88a23449_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))
