fix(update): pass full name@marketplace to claude plugin update

`claude plugin update` rejects a bare plugin name when multiple
marketplaces are registered — the CLI demands `name@marketplace`.
update-all.sh stripped the suffix via `${_p%%@*}`, causing every
marketplace plugin update to fail with "Plugin not found". Fixed
by passing the unmodified spec from `claude plugin list`.

Also adds install + update paths for external skills distributed
through the `npx skills` CLI (vercel-labs/skills):
  - alchaincyf/darwin-skill
  - alchaincyf/find-skills

These land in ~/.agents/skills/ and are now symlinked into
$REPO/skills/ via link.sh using absolute paths — the previous
relative `../../.agents/...` targets resolved incorrectly when
the repo is cloned below $HOME (as ~/Documents/claude/), leaving
dangling symlinks.

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -44,6 +44,10 @@ skills/unfreeze
 # Emil Design Engineering skill symlink — auto-created by link.sh
 skills/emil-design-eng
 
+# External skills installed via `npx skills add` — auto-created by link.sh
+skills/darwin-skill
+skills/find-skills
+
 # Local project config (per-machine, not shared)
 .claude/
 

install-plugins.sh

@@ -455,6 +455,44 @@ else
 fi
 echo ""
 
+# ============================================================
+# STEP 8.5 — EXTERNAL SKILLS (npx skills add …)
+# ============================================================
+# Cross-agent skills distributed via the `skills` npm package
+# (vercel-labs/skills). Installed into ~/.agents/skills/ and
+# symlinked into $REPO/skills/ by link.sh using absolute paths.
+echo "── Step 8.5: External skills via npx ──────────────────────"
+echo ""
+
+NPX_SKILLS=(
+  "alchaincyf/darwin-skill"
+  "alchaincyf/find-skills"
+)
+
+if ! command -v npx &>/dev/null; then
+  warn "npx not available — skipping external skills"
+else
+  for _src in "${NPX_SKILLS[@]}"; do
+    _name="${_src##*/}"
+    _dst="$HOME/.agents/skills/$_name"
+    if [ -d "$_dst" ]; then
+      ok "$_name already installed ($_dst)"
+      continue
+    fi
+    info "Installing $_name via: npx -y skills add $_src"
+    if npx -y skills add "$_src" 2>/dev/null; then
+      if [ -d "$_dst" ]; then
+        ok "$_name installed"
+      else
+        warn "$_name installed but not at expected path $_dst"
+      fi
+    else
+      err "$_name install failed — run manually: npx -y skills add $_src"
+    fi
+  done
+fi
+echo ""
+
 # ============================================================
 # STEP 9 — SHELL CONFIG (alias + env vars)
 # ============================================================
@@ -526,10 +564,13 @@ echo "    🔄 ui-ux-pro-max       — user scope (~400 tokens)"
 echo "    🔄 context7 CLI        — ctx7 (npm global, standalone or MCP setup)"
 echo "    🔄 graphifyy           — codebase knowledge graph (pipx, PreToolUse hook)"
 echo "    🔄 emil-design-eng     — UI polish, animations, component craft (curl → symlink)"
+echo "    🔄 darwin-skill        — autonomous skill optimizer (npx skills, ~/.agents/skills/)"
+echo "    🔄 find-skills         — skill discovery helper (npx skills, ~/.agents/skills/)"
 echo ""
 echo "  All plugins installed at: user scope (~/.claude/plugins/)"
-echo "  GStack at: ~/.claude/skills/gstack/ (symlink → submodule)"
+echo "  GStack skills symlinked individually into ~/.claude/skills/ (→ submodule)"
 echo "  Emil Design Eng at: ~/.claude/skills/emil-design-eng/ (symlink → skills-external)"
+echo "  npx skills at: ~/.agents/skills/ (symlinked into ~/.claude/skills/)"
 echo ""
 echo "  → Restart Claude Code — plugins load automatically"
 echo ""

link.sh

@@ -57,6 +57,27 @@ else
   echo "⚠️  emil-design-eng not found — run: make plugin"
 fi
 
+# External skills installed via `npx skills add` live under
+# $HOME/.agents/skills/. We symlink them into $REPO/skills/ with
+# absolute paths so the link stays valid regardless of where the
+# repo is cloned (relative ../../ paths broke on repos deeper than
+# one level below $HOME).
+NPX_EXTERNAL_SKILLS=(darwin-skill find-skills)
+for _ext in "${NPX_EXTERNAL_SKILLS[@]}"; do
+  _target="$HOME/.agents/skills/$_ext"
+  _link="$REPO/skills/$_ext"
+  if [ ! -d "$_target" ]; then
+    echo "⚠️  $_ext not installed at $_target — run: make plugin"
+    continue
+  fi
+  if [ -L "$_link" ] && [ "$(readlink "$_link")" = "$_target" ]; then
+    continue
+  fi
+  rm -f "$_link"
+  ln -sf "$_target" "$_link"
+  CHANGED=$((CHANGED + 1))
+done
+
 if [ "$CHANGED" -eq 0 ]; then
   echo "✅ All symlinks already up to date."
 else

update-all.sh

@@ -210,6 +210,32 @@ else
   info "emil-design-eng not installed — skipping (run: make plugin)"
 fi
 
+# ── 7.5. Update external skills (npx skills) ──
+echo ""
+echo "── Updating external skills (npx skills)..."
+if command -v npx &>/dev/null; then
+  NPX_SKILLS=(
+    "alchaincyf/darwin-skill"
+    "alchaincyf/find-skills"
+  )
+  for _src in "${NPX_SKILLS[@]}"; do
+    _name="${_src##*/}"
+    if [ ! -d "$HOME/.agents/skills/$_name" ]; then
+      info "$_name not installed — skipping (run: make plugin)"
+      continue
+    fi
+    # `skills add` is idempotent and pulls latest from the source repo,
+    # which is the closest thing to an update operation the CLI exposes.
+    if npx -y skills add "$_src" 2>/dev/null; then
+      ok "$_name refreshed from $_src"
+    else
+      warn "$_name refresh failed — run manually: npx -y skills add $_src"
+    fi
+  done
+else
+  info "npx not available — skipping external skills"
+fi
+
 # ── 8. Update marketplace plugins ──
 echo ""
 echo "── Updating marketplace plugins..."
@@ -220,7 +246,9 @@ if command -v claude &>/dev/null; then
     while IFS= read -r _p; do
       _name="${_p%%@*}"
       info "Updating $_name..."
-      if claude plugin update "$_name" 2>/dev/null; then
+      # Pass the full "name@marketplace" spec — the CLI rejects
+      # the bare name when several marketplaces are registered.
+      if claude plugin update "$_p" 2>/dev/null; then
         ok "$_name updated"
       else
         warn "$_name update failed"