The seed commit said `uses:` did not work. That was measured while this repo
was private and is no longer true: with the full URL it works, and the action's
outputs.path reaches the caller and can run the tools.
The bare owner/repo form still fails - it resolves against the instance default
actions URL, not this host - so the README says which to use and why, with the
per-form results.
Co-authored-by: bit <bit@das-labor.org>