The warm-up thread imports strix.core.runner while warm_up_llm and
preflight_model_connection import agents.models.interface. Both walk the
agents SDK graph from different entry points, CPython fails one side to
break the import-lock cycle, and the orphan purge then removes agents.*
from sys.modules while the main thread is still importing it, crashing
strix -n with KeyError: 'agents.models'.
* add extra-files plumbing so orchestrators can drop single files into the sandbox workspace
* reject extra-file paths that collide with a local source tree
* add --workspace-file so CLI users can place files in the sandbox workspace
* reject repeated and control-character workspace paths
* revalidate persisted workspace files when resuming a run
* drop the workspace-file size limit
Ahmed Allam