feat(profile): add gstack on|off verb to lib/profile.sh

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>

.claude/memory/blockers.md

@@ -24,6 +24,9 @@ rules:
 | BLK-002 | 2026-04-23 | `rmdir` denied in sandbox on empty directory | resolved |
 | BLK-003 | 2026-05-12 | `scripts/screenshot.mjs` hardcoded macOS path blocks PNG cards on Linux | upstream |
 | BLK-004 | 2026-05-20 | `/ship-feature` wrapper at `~/.claude/commands/` points to deleted agent files post-refactor | resolved |
+| BLK-005 | 2026-05-21 | gstack submodule rename (checkpoint→context-save) breaks profile entries | resolved |
+| BLK-006 | 2026-05-21 | `profile.sh current` false-negative via `~/.claude` symlink (`cd` not `cd -P`) | resolved |
+| BLK-007 | 2026-06-02 | 6 gstack source skills (ios-*, spec) unlinked post-bump — invisible to profiles + `gstack on` | open |
 
 ---
 
@@ -82,3 +85,11 @@ rules:
 - **Real cause**: `lib/profile.sh:43` set `REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"`. Default bash `cd` preserves symlinks (logical pathname mode, `set -P` off). When the script is invoked via the `~/.claude/lib/profile.sh` symlink (link.sh wires `~/.claude/lib -> <repo>/lib`), `$BASH_SOURCE[0]` is the symlinked path, `dirname` returns `~/.claude/lib`, `cd ..` lands at `~/.claude`, and `pwd` returns the logical path `/home/bchanot-ubuntu/.claude`. `$SKILLS_DIR="$REPO/skills"` still works because `~/.claude/skills` happens to be a symlink to the repo's `skills/`. But `$DISABLED_DIR="$REPO/skills-disabled"` resolves to `~/.claude/skills-disabled` — a real sibling directory created at some earlier point containing only 2 stale npx-skill symlinks (`darwin-skill`, `find-skills`). `cmd_current` scans this near-empty dir, finds 0 `gstack__*` entries, returns the "none" sentinel.
 - **Solution**: `REPO="$(cd -P "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"` (commit `a4558ee`). `-P` forces physical-path resolution so `$REPO` is always the real repo path regardless of how the script is invoked. Verify: `bash "$HOME/.claude/lib/profile.sh" current` now returns `full (100% match, 14 gstack skills disabled)`.
 - **Status**: resolved. Follow-up: `~/.claude/skills-disabled/` (real dir with only `darwin-skill`/`find-skills` symlinks) is orphaned — these npx skills are already symlinked into `<repo>/skills/` by link.sh, so the disabled-side copies serve no purpose. Could be deleted to remove confusion, but harmless as-is.
+
+## BLK-007 — 6 gstack source skills (ios-*, spec) unlinked — invisible to profile system + `gstack on`
+
+- **Date**: 2026-06-02
+- **Friction**: `skills-external/gstack/` has 53 source skills; 6 (`ios-clean`, `ios-design-review`, `ios-fix`, `ios-qa`, `ios-sync`, `spec`) exist ONLY as source — NOT symlinked into `skills/` (enabled) nor `skills-disabled/gstack__*` (parked). So invisible to Claude AND untouched by `reset`/`gstack on` (both operate on parked `gstack__*` only). Surfaced while adding `gstack on|off`: `comm` of gstack source vs `full.profile`.
+- **Real cause**: gstack submodule bump added new skills; gstack's own `./setup` (source of truth for per-skill symlinks per link.sh) not re-run → symlinks never created. Same lifecycle gap class as [[toggle-external-source-only-state]] (LRN-007). NOT a `full.profile` bug — full curated by design (BDR-017 caveat: "full excludes rarely-used gstack skills"). Initial "full omits ios = bug" flag was WRONG, self-corrected (see EVAL-002).
+- **Solution**: re-run gstack setup to link new skills, then reconcile profiles (decide if iOS skills belong in web/dev profiles — likely NOT). Per [[gstack-rename-profile-audit]] (LRN-022): diff `skills-external/gstack/` vs `lib/profiles/*.profile` after every submodule bump. NOT auto-fixed — gstack installer domain + iOS-in-web judgment call.
+- **Status**: open. Low impact (skills unused today, never linked). Next: run gstack `./setup`, audit profile membership.

.claude/memory/decisions.md

@@ -38,6 +38,8 @@ rules:
 | BDR-014 | 2026-05-11 | Personal SKILL.md descriptions: "Use when [triggers]…" pattern + 1024-char spec limit | accepted |
 | BDR-015 | 2026-05-12 | Exclude broken gstack symlinks from /darwin-skill scope (external ownership) | accepted |
 | BDR-016 | 2026-05-15 | doc-syncer: README AUTO+unconditional, DEPLOY.md prod-only + 14-section VPS template | accepted |
+| BDR-017 | 2026-05-18 | `full` profile = web-full + plan + dev superset for /init-project MVP | accepted |
+| BDR-018 | 2026-06-02 | `profile gstack on/off` verb — toggle gstack keeping active-profile label | accepted |
 
 ---
 
@@ -321,3 +323,17 @@ rules:
   - `full` excludes a few rarely-used gstack skills (devex-review, pair-agent, gstack-upgrade, skills-perso). `set full` will disable those; user can `apply <profile>` after to add back.
   - Sentinel rename "full" → "none" is breaking for any tooling that grepped `cmd_current` output for literal "full". No known consumers in this repo.
 - **Reference**: commit message references `lib/profiles/full.profile` (new), `lib/profile.sh:421` sentinel, `skills/profile/SKILL.md` table row. Linked to [[profile-sentinel-collision]] (LRN-020).
+
+---
+
+## BDR-018 — `profile gstack on|off` verb keeps active-profile label
+
+- **Date**: 2026-06-02
+- **Status**: accepted
+- **Decision**: New `cmd_gstack()` in `lib/profile.sh`. `gstack on` = re-enable all parked gstack (move `skills-disabled/gstack__*` back), DON'T touch `.active-profile`. `gstack off` = disable gstack skills not in active profile (errors if active=none). Wired into `main()` dispatch + `usage()` + header block + `skills/profile/SKILL.md` (argument-hint + examples + output-policy).
+- **Why**: User wanted central command for "enable all gstack" + "disable gstack not needed by profile". Both ops existed (`reset`, `set`) but `reset` clobbers `.active-profile` to "none" — loses profile context in statusline. New verb does same skill-toggle WITHOUT clearing label, so user layers full gstack on top of current profile (e.g. `dev`) and statusline still reads `dev`.
+- **Alternatives rejected**:
+  - 3 new profiles (current+gstack, current+gsd, current+gsd+gstack) — rejected: `gsd` = standalone CLI (not profile-toggleable, always-on, 0 passive token), so 2 of 3 meaningless. `full` already = current+gstack+gsd advisory. `apply` already additive.
+  - Just document `reset`/`set` — rejected: user wanted clearer centralized verb + label preservation.
+- **Impl note**: extracted 3 shared helpers (`enable_all_gstack`, `disable_gstack_not_in`, `parked_gstack_count`); `cmd_reset`+`cmd_set` refactored to reuse (behavior preserved exact, verified by test). See [[dry-helper-extract-sibling-command]] (LRN-024).
+- **Reference**: `lib/profile.sh` cmd_gstack + helpers, `skills/profile/SKILL.md`. Linked to [[full-profile-superset-init-project]] (BDR-017), [[gstack-source-only-skills-unlinked]] (BLK-007).

.claude/memory/evals.md

@@ -22,6 +22,7 @@ rules:
 | ID | Date | Output | Action |
 |----|------|--------|--------|
 | EVAL-001 | 2026-04-23 | `.claude/` restructure plan (ship-feature STEP 2) | keep |
+| EVAL-002 | 2026-06-02 | `profile gstack on/off` verb implementation | keep |
 
 ---
 
@@ -31,4 +32,14 @@ rules:
 - **Output**: 21-task plan migrate `tasks/` to `.claude/tasks/` + create `.claude/memory/` + `.claude/audits/` + integrate CAPITALIZE across 5 skills + add `/close` skill.
 - **Method**: manual review of 5 impacted skills/agents; verified `rtk` path-agnostic; confirmed `~/.claude/CLAUDE.md` symlinks to project (single file edit). Radical-honesty check on session-close ritual: confirmed aspirational without skill integration → scope expanded to Option D.
 - **Anomalies**: none blocking. Note: `tasks/LESSONS.md` empty (101B, header only) — migration to `learnings.md` symbolic.
-- **Action**: keep — plan validated, ready for execution.
+- **Action**: keep — plan validated, ready for execution.
+
+---
+
+## EVAL-002 — `profile gstack on|off` verb implementation
+
+- **Date**: 2026-06-02
+- **Output**: `cmd_gstack()` + 3 extracted helpers in `lib/profile.sh`; `cmd_reset`/`cmd_set` refactored to reuse; `skills/profile/SKILL.md` doc updated.
+- **Method**: shellcheck 0.10.0 (CLEAN) + `bash -n`; 6-case live test (help; bad-action exit 1; `off` with active=none → exit 1 zero-mutation; `on` restores 14 + label `full` preserved NOT cleared; `off` trim; `on` cycle) with saved manifest + final assertion final-state == original (PASS, live env untouched).
+- **Anomalies**: (1) Initial flag "full.profile omits ios/spec = bug" WRONG — full curated by design, confirmed by BDR-017 caveat. Self-corrected BEFORE any edit, no bad change shipped. Lesson: verify profile INTENT vs source completeness before calling omission a bug. (2) Surfaced real source-only gap → BLK-007 (open).
+- **Action**: keep — verb works, tested, documented; false bug-flag caught pre-edit.

.claude/memory/journal.md

@@ -129,3 +129,11 @@ rules:
 - `/hotfix` follow-up — `bash "$HOME/.claude/lib/profile.sh" current` falsely reported `none (all gstack skills enabled — no profile set)` even with profile applied + 14 gstack__* entries in repo's `skills-disabled/`. Root cause: `lib/profile.sh:43` used `cd "$(dirname $BASH_SOURCE)/.."` — default bash `cd` preserves symlinks, so `$REPO` resolved to `/home/bchanot-ubuntu/.claude` (symlink dir) instead of real repo path. `$DISABLED_DIR` then pointed at near-empty `~/.claude/skills-disabled/` (2 stale npx symlinks only). Fixed by adding `-P` to `cd` (commit `a4558ee`). `cmd_current` now correctly reports `full (100% match, 14 gstack skills disabled)`.
 - BLK-006 capitalized — `cmd_current` false-negative when invoked via `~/.claude/lib/profile.sh` symlink; status: resolved.
 - LRN-023 capitalized — `$REPO="$(cd -P "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"` mandatory pattern for any script meant to be invoked via a symlink into the install location.
+
+## 2026-06-02
+
+- Added `profile gstack on|off` verb to `lib/profile.sh`. `on` = re-enable all parked gstack keeping `.active-profile` label intact (vs `reset` which clears to "none"); `off` = disable gstack not in active profile (errors if none). User wanted centralized toggle without losing profile context.
+- Extracted 3 helpers (`enable_all_gstack`/`disable_gstack_not_in`/`parked_gstack_count`); refactored `cmd_reset`+`cmd_set` to reuse — behavior preserved, 6-case test + exact state-restore assertion PASS, shellcheck CLEAN. Doc: SKILL.md argument-hint + examples + output-policy. Makefile generic `make profile cmd="gstack on"` already covers it.
+- Corrected own false flag: full.profile omitting ios-*/spec is curation by design (BDR-017 caveat), NOT a bug — caught before any edit. Surfaced real gap: 6 gstack source skills unlinked post-submodule-bump → BLK-007 (open, gstack ./setup domain, not auto-fixed).
+- Backfilled index drift: decisions (BDR-017), blockers (BLK-005/006).
+- BDR-018 + LRN-024 + BLK-007 + EVAL-002 capitalized.

.claude/memory/learnings.md

@@ -40,6 +40,7 @@ rules:
 | LRN-017 | 2026-05-12 | Thin-dispatcher SKILL.md round-1 win = fallback + frontmatter triggers (+15 to +30) | any `/darwin-skill` round-1 on a dispatcher SKILL.md |
 | LRN-018 | 2026-05-12 | Darwin eval subagents drift on total math — recompute in main thread | any subagent-driven SKILL.md rescore |
 | LRN-019 | 2026-05-15 | Deployable-project doc split: README dev-quickstart + DEPLOY 14-section prod-VPS topology | any onboard/doc-syncer/scaffold producing docs for a deployable project |
+| LRN-024 | 2026-06-02 | New sibling command sharing logic → extract helper + refactor existing caller, never copy-paste; assert pre/post state equality | adding a subcommand/branch reusing logic inline in a peer command |
 
 ---
 
@@ -359,3 +360,14 @@ rules:
   - Lint via: `grep -n 'cd "$(dirname "${BASH_SOURCE' <script>` — every match should also contain `cd -P` (or be followed by an explicit `realpath` call).
 - **Cost when missed**: state lands in two parallel directories. Reads from one, writes from the other. False-negative status reports. Worst case: silent data loss when one dir is cleaned by a tool that thinks the other is canonical.
 - **Reference**: BLK-006, commit `a4558ee`. Linked to [[gstack-rename-profile-audit]] (LRN-022) — both bugs surfaced from the same `/profile set full` invocation, but root causes are independent.
+
+---
+
+## LRN-024 — New sibling command sharing logic → extract helper + refactor caller, never copy-paste
+
+- **Date**: 2026-06-02
+- **Pattern**: New `gstack on|off` needed same skill-toggle loops already inline in `cmd_reset` (enable-all-parked) + `cmd_set` (disable-not-in-profile). Copy-paste = divergence risk (gstack__ prefix logic, mktemp keep-file). Instead extracted `enable_all_gstack()` + `disable_gstack_not_in()` + `parked_gstack_count()`; refactored `cmd_reset`/`cmd_set` to call them, then added `cmd_gstack` as 3rd caller. Behavior preserved exact (code MOVED not changed).
+- **Why matters**: CLAUDE.md "more elegant solution exists?" — slight scope expansion (touch existing fns) beats duplication. Risk contained by test: snapshot original symlink state → run on/off cycle → re-park exact original → assert final == original. PASS, live env untouched.
+- **Key trick**: when mutating shared resource (symlinks, files, db), verify refactor by asserting `final_state == original_state` after a round-trip, not just "command exited 0".
+- **Applies to**: any new subcommand/branch reusing logic inline in a peer command — extract first, refactor existing caller, then add new caller. shellcheck after.
+- **Reference**: BDR-018, `lib/profile.sh` enable_all_gstack/disable_gstack_not_in/parked_gstack_count. Linked to [[gstack-on-off-verb]] (BDR-018).

.claude/tasks/TODO.md

@@ -1,5 +1,18 @@
 # TODO
 
+## profile.sh — verbe `gstack on|off`
+- [x] Extraire helper `enable_all_gstack()` (boucle de cmd_reset) — anti-duplication
+- [x] Extraire helper `disable_gstack_not_in(prof)` (boucle gstack de cmd_set) — anti-duplication
+- [x] Extraire helper `parked_gstack_count()` (réutilise pattern cmd_current)
+- [x] Refactor cmd_reset + cmd_set pour utiliser les helpers (comportement préservé)
+- [x] `cmd_gstack()` : `on` = enable tout gstack (garde label active-profile), `off` = disable gstack hors profil actif
+- [x] Wire main() dispatch `gstack)` + usage() + bloc header
+- [x] Doc : SKILL.md argument-hint + exemples + output-policy (Makefile générique suffit)
+- [x] shellcheck propre + tests (help/bad-action/none-error/on/off cycle) — état live restauré exact
+- [x] Investigué "fix" full.profile : PAS un bug — curation par design (BDR-017 caveat). Aucun fix code.
+- [ ] FOLLOW-UP (BLK-007) : 6 skills gstack source (ios-*, spec) unlinkés post-bump → re-run gstack ./setup + reconcilier profils (iOS dans profils web ? probablement non)
+- [x] Capitalize : BDR-018, LRN-024, BLK-007, EVAL-002, journal 2026-06-02 + backfill index (BDR-017, BLK-005/006)
+
 ## README.md overhaul
 - [x] Plan
 - [x] Corriger section install ctx7 (retirer MCP, clarifier CLI + API key)

lib/profile.sh

@@ -26,6 +26,7 @@
 #   profile.sh apply <name>          enable items in profile (additive)
 #   profile.sh set <name>            enable only profile (disables rest)
 #   profile.sh reset                 re-enable all gstack skills + managed plugins
+#   profile.sh gstack on|off         toggle gstack, keeping active-profile label
 #   profile.sh diff <a> <b>          compare two profiles
 #
 # Profile file format (lib/profiles/<name>.profile):
@@ -321,6 +322,43 @@ disable_skill() {
   esac
 }
 
+# ── Shared gstack operations ──────────────────────────────
+
+# Re-enable every gstack skill parked in skills-disabled/ (move gstack__*
+# back into skills/). Shared by cmd_reset and `gstack on`. Side effects
+# only; prints one confirmation per restored skill.
+enable_all_gstack() {
+  local entry name
+  [ -d "$DISABLED_DIR" ] || return 0
+  for entry in "$DISABLED_DIR"/gstack__*; do
+    [ -e "$entry" ] || continue
+    name="$(basename "$entry" | sed 's/^gstack__//')"
+    rm -rf "${SKILLS_DIR:?}/${name:?}"
+    mv "$entry" "$SKILLS_DIR/$name"
+    ok "re-enabled: $name"
+  done
+}
+
+# Disable gstack-origin skills not listed in the given profile. Shared by
+# cmd_set and `gstack off`. Caller is responsible for validating the profile.
+disable_gstack_not_in() {
+  local prof="$1"
+  local keep_file name
+  keep_file="$(mktemp)"
+  read_profile "$prof" | cut -f1 | sort -u > "$keep_file"
+  while read -r name; do
+    [ -n "$name" ] || continue
+    grep -qx "$name" "$keep_file" || disable_skill "$name" gstack
+  done < <(gstack_skills | sort -u)
+  rm -f "$keep_file"
+}
+
+# Count gstack skills currently parked in skills-disabled/.
+parked_gstack_count() {
+  [ -d "$DISABLED_DIR" ] || { echo 0; return 0; }
+  find "$DISABLED_DIR" -maxdepth 1 -name 'gstack__*' 2>/dev/null | wc -l | tr -d ' '
+}
+
 # ── Commands ──────────────────────────────────────────────
 
 cmd_list() {
@@ -367,28 +405,14 @@ cmd_set() {
   local prof="$1"
   info "Setting profile: $prof (exclusive — disables non-listed gstack skills + managed plugins)"
 
-  # Index of items in profile (skill names + plugin keys "name@marketplace").
-  local keep_file
-  keep_file="$(mktemp)"
-  # Skill names (col 1) — used to keep gstack skills.
-  read_profile "$prof" | cut -f1 | sort -u > "$keep_file"
-  # Plugin keys "name@marketplace" — used to keep managed plugins.
-  local plugin_keep_file
-  plugin_keep_file="$(mktemp)"
-  read_profile "$prof" | awk -F'\t' '$2 ~ /^plugin@/ { sub(/^plugin@/, "", $2); print $1"@"$2 }' | sort -u > "$plugin_keep_file"
-
   # Disable gstack-origin skills not in profile.
-  local name
+  disable_gstack_not_in "$prof"
-  while read -r name; do
-    [ -n "$name" ] || continue
-    if ! grep -qx "$name" "$keep_file"; then
-      disable_skill "$name" gstack
-    fi
-  done < <(gstack_skills | sort -u)
 
   # Disable managed plugins not in profile (PROTECTED_PLUGINS are excluded
   # by disable_skill itself — belt and suspenders).
-  local p key plugin_name marketplace
+  local plugin_keep_file p plugin_name marketplace
+  plugin_keep_file="$(mktemp)"
+  read_profile "$prof" | awk -F'\t' '$2 ~ /^plugin@/ { sub(/^plugin@/, "", $2); print $1"@"$2 }' | sort -u > "$plugin_keep_file"
   for p in "${MANAGED_PLUGINS[@]}"; do
     if ! grep -qx "$p" "$plugin_keep_file"; then
       plugin_name="${p%@*}"
@@ -396,29 +420,67 @@ cmd_set() {
       disable_skill "$plugin_name" "plugin@${marketplace}"
     fi
   done
+  rm -f "$plugin_keep_file"
 
-  rm -f "$keep_file" "$plugin_keep_file"
   # Enable everything listed in the profile.
   cmd_apply "$prof"
 }
 
 cmd_reset() {
   info "Re-enabling all gstack skills (move skills-disabled/gstack__* back)"
-  local entry name
+  enable_all_gstack
-  if [ -d "$DISABLED_DIR" ]; then
-    for entry in "$DISABLED_DIR"/gstack__*; do
-      [ -e "$entry" ] || continue
-      name="$(basename "$entry" | sed 's/^gstack__//')"
-      rm -rf "${SKILLS_DIR:?}/${name:?}"
-      mv "$entry" "$SKILLS_DIR/$name"
-      ok "re-enabled: $name"
-    done
-  fi
   info "Plugin state NOT touched. To re-enable a managed plugin disabled by 'set',"
   info "run: claude plugin enable <name>@<marketplace>  (or: profile apply <profile>)"
   write_active "none"
 }
 
+# gstack on|off — focused gstack-only toggle that keeps the active-profile
+# label intact (unlike reset, which clears it to "none"). Lets the user
+# layer all gstack on top of their current profile, or trim it back down
+# to just what the active profile needs.
+cmd_gstack() {
+  local action="${1:-}"
+  case "$action" in
+    on)
+      # Re-enable ALL gstack skills, but DON'T touch active-profile — the
+      # user is adding gstack on top of their current profile, not clearing it.
+      local parked
+      parked="$(parked_gstack_count)"
+      if [ "$parked" -eq 0 ]; then
+        info "all gstack skills already enabled"
+      else
+        enable_all_gstack
+        ok "all gstack enabled ($parked skills restored)"
+      fi
+      ;;
+    off)
+      # Disable gstack skills not needed by the active profile. Needs a real
+      # active profile to know what to keep.
+      local active
+      active="$(head -n1 "$ACTIVE_CACHE" 2>/dev/null || echo none)"
+      [ -z "$active" ] && active="none"
+      if [ "$active" = "none" ] || [ ! -f "$PROFILES_DIR/$active.profile" ]; then
+        err "no active profile — 'gstack off' needs one to know what to keep"
+        info "run: bash lib/profile.sh set <name>   then: gstack off"
+        return 1
+      fi
+      info "Disabling gstack skills not in active profile: $active"
+      disable_gstack_not_in "$active"
+      ok "gstack trimmed to profile: $active"
+      ;;
+    ""|-h|--help|help)
+      cat <<'EOF'
+profile gstack on|off — toggle gstack without losing the active-profile label
+
+  on    re-enable ALL gstack skills (keeps active-profile label)
+  off   disable gstack skills not in the active profile
+EOF
+      ;;
+    *)
+      err "Unknown gstack action: '$action' (use: on | off)"; return 1 ;;
+  esac
+}
+
 cmd_current() {
   # A profile is "active" only if (a) most of its skills are enabled AND
   # (b) at least one non-listed gstack skill is currently disabled (i.e. a
@@ -491,6 +553,7 @@ USAGE:
   profile apply <name>      enable skills in profile (additive)
   profile set <name>        enable only listed skills (disables rest of gstack)
   profile reset             re-enable all gstack skills
+  profile gstack on|off     toggle gstack only, keep active-profile label
   profile diff <a> <b>      compare two profiles
 
 PROFILES (in $PROFILES_DIR):
@@ -527,6 +590,7 @@ main() {
     apply)   [ $# -ge 2 ] || { usage; exit 1; }; cmd_apply "$2" ;;
     set)     [ $# -ge 2 ] || { usage; exit 1; }; cmd_set "$2" ;;
     reset)   cmd_reset ;;
+    gstack)  cmd_gstack "${2:-}" ;;
     diff)    [ $# -ge 3 ] || { usage; exit 1; }; cmd_diff "$2" "$3" ;;
     ""|-h|--help|help) usage ;;
     *) err "Unknown command: $cmd"; usage; exit 1 ;;

skills/profile/SKILL.md

@@ -8,7 +8,7 @@ description: |
   "switch to design", "set profile", "active profile", "quel profil",
   "profil design", "active les skills design", "désactive gstack",
   "réduire le bruit gstack".
-argument-hint: list | show <name> | current | apply <name> | set <name> | reset | diff <a> <b>
+argument-hint: list | show <name> | current | apply <name> | set <name> | reset | gstack on|off | diff <a> <b>
 disable-model-invocation: false
 allowed-tools:
   - Bash
@@ -81,9 +81,13 @@ bash "$HOME/.claude/lib/profile.sh" apply <name>
 # Enable only skills in profile (disables non-listed gstack skills)
 bash "$HOME/.claude/lib/profile.sh" set <name>
 
-# Re-enable every gstack skill (undo any set/apply)
+# Re-enable every gstack skill (undo any set/apply) — resets active label to "none"
 bash "$HOME/.claude/lib/profile.sh" reset
 
+# Toggle gstack only, keeping the active-profile label intact
+bash "$HOME/.claude/lib/profile.sh" gstack on    # re-enable ALL gstack on top of current profile
+bash "$HOME/.claude/lib/profile.sh" gstack off   # disable gstack skills not in the active profile
+
 # Compare two profiles
 bash "$HOME/.claude/lib/profile.sh" diff <a> <b>
 ```
@@ -101,9 +105,9 @@ bash "$HOME/.claude/lib/profile.sh" $ARGUMENTS
 
 ## Output policy
 
-- After `set` / `apply` / `reset`: show the count of skills moved + tell the
+- After `set` / `apply` / `reset` / `gstack on|off`: show the count of skills
-  user to start a new Claude session to pick up the changes (Claude scans
+  moved + tell the user to start a new Claude session to pick up the changes
-  `skills/` at session start).
+  (Claude scans `skills/` at session start).
 - After `current`: report the active profile + match percentage.
 - After `show`: render the table directly — no extra commentary unless the user
   asks.