tools.workflow_subagent_tools module
Filesystem workflow subagents: create via Cursor CLI, run in isolated venv.
Each workflow lives under subagents/<name>/ with main.py, requirements.txt,
and a local .venv/. Creation uses cursor-agent (composer-2-fast); execution
uses the workflow venv’s Python.
Requires UNSANDBOXED_EXEC (same privilege model as cursor_tool).