`uv tool install --editable` puts the executable in ~/.local/bin rather than
.venv/bin, which is the difference between a command that works everywhere and
one that works only under an activated venv. Agents and git hooks never
activate one.
Verified in the three contexts that matter, with a negative control so the
passes discriminate: a stripped non-interactive shell, a REAL git hook process
(via git -c core.hooksPath ... hook run pre-push, not a simulation), and an
agent Bash call — all with VIRTUAL_ENV unset. With ~/.local/bin removed from
PATH the same check reports NOT-FOUND, so this is not passing because a venv
happens to be active.
Found a silent interpreter fork while doing it, which is this initiative's own
failure mode wearing a different hat. uv tool install without --python picked
CPython 3.11 for the tool environment while .venv and system python are 3.14 —
uv selects the lowest interpreter satisfying requires-python. reach would have
run on one interpreter and the test scripts on another, with different wheels
for numpy/scipy/PIL, and future 3.12+ syntax would break the tool while the
venv stayed green. PYTHON_VERSION now pins both.
make setup-venv is rebuilt on uv, per the T-1258 finding that it called
.venv/bin/pip against a venv that has no pip. The first fix was wrong too:
plain `uv venv` fails on an existing venv, so the target was not idempotent
where the version it replaced had been. Caught by running it twice instead of
dry-running it — which is how the original rotted unnoticed.
make install-reach self-checks that reach is actually on PATH afterwards
rather than assuming it. make reach-repoint gives a name to the situation
where uv keeps resolving a deleted worktree: reach still runs, edits in the
main checkout do nothing, and there is no error message.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>