The checkout-owned full wrapper reads GSTACK_CAPY_MIN_WRAPPER through
gstack_support_env_get(gstack_source_root) and compares it with the
bootstrapper revision it was handed, so the rule can change without
recopying the Drive skill. The bootstrapper keeps only what a stale checkout
cannot do: clone, fetch, read the remote minimum, fast-forward, exec.
Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>
capy/skill/gstack/ is the Drive skill's source of truth. scripts/install.sh
is a frozen bootstrapper: it prints gstack-capy-skill: wrapper <n> (<path>),
clones or fetches under .gstack-capy-install.lock, reads the remote
capy/support.env (FETCH_HEAD), fast-forwards a clean unpinned checkout below
GSTACK_MIN_REVISION (refusing dirty, diverged or pinned checkouts with the
exact commands; GSTACK_CAPY_AUTO_UPGRADE=0 disables), and execs the
checkout's own bin/gstack-capy-session with GSTACK_CAPY_LOCK_HELD=1 so the
held lock is never taken twice. Offline it says the remote minimum is
unknown. A Drive copy older than GSTACK_CAPY_MIN_WRAPPER prints an owner
action (CAPY_WRAPPER_STALE). SKILL.md: check at session start, install
lazily before the first workflow, the GSTACK_LAUNCH line, the trailer rule,
the subagent first-report line, gstack-pregate sealed before any push, and
the autoplan/DRIVER.md pointer. The context-budget fixture gains the skill's
entry.
Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>
