diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
new file mode 100644
index 000000000..1084a27e6
--- /dev/null
+++ b/.claude-plugin/marketplace.json
@@ -0,0 +1,31 @@
+{
+  "name": "garrytan-gstack",
+  "metadata": {
+    "description": "Garry's Stack — a virtual engineering team for Claude Code"
+  },
+  "owner": {
+    "name": "Garry Tan"
+  },
+  "plugins": [
+    {
+      "name": "gstack",
+      "source": "./",
+      "description": "28 development workflow skills that turn Claude Code into a virtual engineering team — office hours, code review, QA with a real browser, design audits, security analysis, release automation, and more.",
+      "category": "development",
+      "tags": [
+        "gstack",
+        "code-review",
+        "qa",
+        "testing",
+        "browser",
+        "design",
+        "security",
+        "workflow",
+        "engineering",
+        "shipping",
+        "debugging",
+        "devtools"
+      ]
+    }
+  ]
+}
diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
new file mode 100644
index 000000000..1d8824161
--- /dev/null
+++ b/.claude-plugin/plugin.json
@@ -0,0 +1,25 @@
+{
+  "name": "gstack",
+  "description": "Garry's Stack — 28 Claude Code skills that turn your AI agent into a virtual engineering team. Code review, QA with a real browser, design audits, security analysis, and release automation, all as slash commands.",
+  "version": "0.12.2.0",
+  "author": {
+    "name": "Garry Tan"
+  },
+  "homepage": "https://github.com/garrytan/gstack",
+  "repository": "https://github.com/garrytan/gstack",
+  "license": "MIT",
+  "keywords": [
+    "gstack",
+    "skills",
+    "code-review",
+    "qa",
+    "testing",
+    "browser",
+    "design",
+    "security",
+    "workflow",
+    "engineering",
+    "productivity",
+    "devtools"
+  ]
+}
diff --git a/README.md b/README.md
index aad62290f..4c24d0d43 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,28 @@ cd ~/gstack && ./setup --host auto
 
 For Codex-compatible hosts, setup now supports both repo-local installs from `.agents/skills/gstack` and user-global installs from `~/.codex/skills/gstack`. All 28 skills work across all supported agents. Hook-based safety skills (careful, freeze, guard) use inline safety advisory prose on non-Claude hosts.
 
+### Claude Code Plugin Marketplace
+
+gstack is also available as a [Claude Code plugin](https://code.claude.com/docs/en/plugins). No git clone, no setup script — just install and go.
+
+```bash
+# Step 1: Register the marketplace
+/plugin marketplace add garrytan/gstack
+
+# Step 2: Install the plugin
+/plugin install gstack@garrytan-gstack
+```
+
+Skills are namespaced under the plugin: `/gstack:review`, `/gstack:qa`, `/gstack:office-hours`, etc.
+
+To upgrade:
+
+```bash
+/plugin update gstack@garrytan-gstack
+```
+
+**Plugin install vs. git clone install:** The plugin install gives you all 28 skills instantly. The git clone install (Step 1 above) additionally builds the `/browse` headless browser binary and registers hook-based safety skills (`/careful`, `/freeze`, `/guard`). If you need real browser QA testing or safety guardrails, use the git clone install.
+
 ## See it work
 
 ```
diff --git a/skills/autoplan b/skills/autoplan
new file mode 120000
index 000000000..2c29a859d
--- /dev/null
+++ b/skills/autoplan
@@ -0,0 +1 @@
+../autoplan
\ No newline at end of file
diff --git a/skills/benchmark b/skills/benchmark
new file mode 120000
index 000000000..2fd59423c
--- /dev/null
+++ b/skills/benchmark
@@ -0,0 +1 @@
+../benchmark
\ No newline at end of file
diff --git a/skills/browse b/skills/browse
new file mode 120000
index 000000000..5b98d71de
--- /dev/null
+++ b/skills/browse
@@ -0,0 +1 @@
+../browse
\ No newline at end of file
diff --git a/skills/canary b/skills/canary
new file mode 120000
index 000000000..86b9afce3
--- /dev/null
+++ b/skills/canary
@@ -0,0 +1 @@
+../canary
\ No newline at end of file
diff --git a/skills/careful b/skills/careful
new file mode 120000
index 000000000..fda3b672d
--- /dev/null
+++ b/skills/careful
@@ -0,0 +1 @@
+../careful
\ No newline at end of file
diff --git a/skills/codex b/skills/codex
new file mode 120000
index 000000000..e5780d1f5
--- /dev/null
+++ b/skills/codex
@@ -0,0 +1 @@
+../codex
\ No newline at end of file
diff --git a/skills/connect-chrome b/skills/connect-chrome
new file mode 120000
index 000000000..c7596101d
--- /dev/null
+++ b/skills/connect-chrome
@@ -0,0 +1 @@
+../connect-chrome
\ No newline at end of file
diff --git a/skills/cso b/skills/cso
new file mode 120000
index 000000000..863403534
--- /dev/null
+++ b/skills/cso
@@ -0,0 +1 @@
+../cso
\ No newline at end of file
diff --git a/skills/design-consultation b/skills/design-consultation
new file mode 120000
index 000000000..2805b5183
--- /dev/null
+++ b/skills/design-consultation
@@ -0,0 +1 @@
+../design-consultation
\ No newline at end of file
diff --git a/skills/design-review b/skills/design-review
new file mode 120000
index 000000000..af5ad36c7
--- /dev/null
+++ b/skills/design-review
@@ -0,0 +1 @@
+../design-review
\ No newline at end of file
diff --git a/skills/document-release b/skills/document-release
new file mode 120000
index 000000000..d05bd28bc
--- /dev/null
+++ b/skills/document-release
@@ -0,0 +1 @@
+../document-release
\ No newline at end of file
diff --git a/skills/freeze b/skills/freeze
new file mode 120000
index 000000000..762060119
--- /dev/null
+++ b/skills/freeze
@@ -0,0 +1 @@
+../freeze
\ No newline at end of file
diff --git a/skills/gstack-upgrade b/skills/gstack-upgrade
new file mode 120000
index 000000000..1ba037aa8
--- /dev/null
+++ b/skills/gstack-upgrade
@@ -0,0 +1 @@
+../gstack-upgrade
\ No newline at end of file
diff --git a/skills/guard b/skills/guard
new file mode 120000
index 000000000..662b51cd2
--- /dev/null
+++ b/skills/guard
@@ -0,0 +1 @@
+../guard
\ No newline at end of file
diff --git a/skills/investigate b/skills/investigate
new file mode 120000
index 000000000..b3ce0f712
--- /dev/null
+++ b/skills/investigate
@@ -0,0 +1 @@
+../investigate
\ No newline at end of file
diff --git a/skills/land-and-deploy b/skills/land-and-deploy
new file mode 120000
index 000000000..137a9857c
--- /dev/null
+++ b/skills/land-and-deploy
@@ -0,0 +1 @@
+../land-and-deploy
\ No newline at end of file
diff --git a/skills/office-hours b/skills/office-hours
new file mode 120000
index 000000000..822fcb9b7
--- /dev/null
+++ b/skills/office-hours
@@ -0,0 +1 @@
+../office-hours
\ No newline at end of file
diff --git a/skills/plan-ceo-review b/skills/plan-ceo-review
new file mode 120000
index 000000000..cee2de41d
--- /dev/null
+++ b/skills/plan-ceo-review
@@ -0,0 +1 @@
+../plan-ceo-review
\ No newline at end of file
diff --git a/skills/plan-design-review b/skills/plan-design-review
new file mode 120000
index 000000000..7f462e0e6
--- /dev/null
+++ b/skills/plan-design-review
@@ -0,0 +1 @@
+../plan-design-review
\ No newline at end of file
diff --git a/skills/plan-eng-review b/skills/plan-eng-review
new file mode 120000
index 000000000..68023474c
--- /dev/null
+++ b/skills/plan-eng-review
@@ -0,0 +1 @@
+../plan-eng-review
\ No newline at end of file
diff --git a/skills/qa b/skills/qa
new file mode 120000
index 000000000..7175d939a
--- /dev/null
+++ b/skills/qa
@@ -0,0 +1 @@
+../qa
\ No newline at end of file
diff --git a/skills/qa-only b/skills/qa-only
new file mode 120000
index 000000000..7066fd136
--- /dev/null
+++ b/skills/qa-only
@@ -0,0 +1 @@
+../qa-only
\ No newline at end of file
diff --git a/skills/retro b/skills/retro
new file mode 120000
index 000000000..1fe0bcf7b
--- /dev/null
+++ b/skills/retro
@@ -0,0 +1 @@
+../retro
\ No newline at end of file
diff --git a/skills/review b/skills/review
new file mode 120000
index 000000000..7baec8bad
--- /dev/null
+++ b/skills/review
@@ -0,0 +1 @@
+../review
\ No newline at end of file
diff --git a/skills/setup-browser-cookies b/skills/setup-browser-cookies
new file mode 120000
index 000000000..327e394f2
--- /dev/null
+++ b/skills/setup-browser-cookies
@@ -0,0 +1 @@
+../setup-browser-cookies
\ No newline at end of file
diff --git a/skills/setup-deploy b/skills/setup-deploy
new file mode 120000
index 000000000..0cef8565d
--- /dev/null
+++ b/skills/setup-deploy
@@ -0,0 +1 @@
+../setup-deploy
\ No newline at end of file
diff --git a/skills/ship b/skills/ship
new file mode 120000
index 000000000..680628206
--- /dev/null
+++ b/skills/ship
@@ -0,0 +1 @@
+../ship
\ No newline at end of file
diff --git a/skills/unfreeze b/skills/unfreeze
new file mode 120000
index 000000000..53995c265
--- /dev/null
+++ b/skills/unfreeze
@@ -0,0 +1 @@
+../unfreeze
\ No newline at end of file