The cli-wheel-clean-install lane introduced in v0.53.4 (#272) failed on
its first main run with `IndentationError: unexpected indent`: YAML
`run: |` preserves the relative indent of the inline `python3 -c`
heredoc, so the Python interpreter saw `try:` at column 12 and refused
to parse.
Fix: write the assertion script to /tmp/smoke.py via a `cat <<'PY'`
heredoc (left-aligned content lands flat), mount it into the container,
and invoke the tool's venv python directly
(`$HOME/.local/share/uv/tools/agnes-the-ai-analyst/bin/python`).
Cleaner than the previous inline form and side-steps `uv tool run
--from <name>` doing a PyPI lookup that fails because we don't publish
there.
Verified locally with the same docker run as the CI step — prints
`OK: kbcstorage absent, urllib3 2.7.0`.
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