`uv pip install -e .` never audits an editable target. It reinstalls on every
invocation and rewrites the console-script shims each time, which is the only
reason `hermes update` has to quarantine the running `hermes.exe` on Windows —
and a quarantine that loses its race is the whole `os error 32` family.
Gate the reinstall on whether the pull actually touched a file that defines the
install. It's safe to skip because the editable finder is pinned to a static
module list (`py-modules` + `packages.find.include`), so the one source-only
change that could stale it — a new top-level module or package — cannot land
without a `pyproject.toml` diff. Dependencies and `[project.scripts]` live
there too, and new submodules inside an already-mapped package resolve through
the real directory.
The predicate fails closed: no pre-pull SHA, an unresolvable one, or a failed
`git diff` all reinstall as before. On the skip path the two verifiers that
normally run inside the install run directly, so a wrong skip self-heals into a
real install rather than leaving an unchecked venv.
This is the pattern the file already uses everywhere else — `_tui_need_npm_install`
diffs node_modules against package-lock.json, and the desktop build is gated on a
content hash so `hermes update` "will skip if nothing actually changed". The
Python editable install was the one path with no such gate.
brooklyn!