Centralize gstack toggling in the `profile` command without losing the
active-profile label.
- `gstack on` re-enables ALL parked gstack skills (moves
skills-disabled/gstack__* back) but does NOT touch .active-profile,
so the user layers full gstack on top of their current profile and
the statusline label is preserved. Unlike `reset`, which clears the
label to "none".
- `gstack off` disables gstack skills not listed in the active profile;
errors cleanly when no profile is active (needs one to know what to
keep).
Refactor (behavior-preserving): extract three shared helpers
`enable_all_gstack`, `disable_gstack_not_in`, `parked_gstack_count` and
rewire `cmd_reset` + `cmd_set` to reuse them instead of duplicating the
symlink-toggle loops. Wire `gstack` into main() dispatch, usage(), and the
header usage block.
Docs: SKILL.md argument-hint, examples, and output-policy updated. The
generic `make profile cmd="gstack on"` target already covers Make usage.
Verified: shellcheck CLEAN, `bash -n` OK, 6-case test (help, bad-action,
off-with-no-profile, on, off-trim, on-cycle) with final assertion that the
live symlink state was restored exactly to its pre-test value.
Memory: capitalize BDR-018 (decision), LRN-024 (DRY helper-extraction
pattern), BLK-007 (6 gstack source skills ios-*/spec unlinked post
submodule bump — open follow-up), EVAL-002 (self-eval, false "full.profile
bug" flag corrected pre-edit). Backfill index drift: BDR-017, BLK-005/006.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
da4e6b9590