diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
new file mode 100644
index 00000000..7858d77c
--- /dev/null
+++ b/.claude-plugin/marketplace.json
@@ -0,0 +1,19 @@
+{
+  "$schema": "https://code.claude.com/schemas/marketplace.json",
+  "name": "pawelgerr",
+  "description": "Claude Code plugins for Pawel Gerr's open-source libraries.",
+  "version": "1.0.0",
+  "owner": {
+    "name": "Pawel Gerr",
+    "url": "https://github.com/PawelGerr"
+  },
+  "plugins": [
+    {
+      "name": "thinktecture-runtime-extensions",
+      "displayName": "Thinktecture Runtime Extensions",
+      "description": "Design and implement Smart Enums, Value Objects, and Discriminated Unions with Thinktecture.Runtime.Extensions.",
+      "source": "./",
+      "version": "1.0.0"
+    }
+  ]
+}
diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
new file mode 100644
index 00000000..f936c48d
--- /dev/null
+++ b/.claude-plugin/plugin.json
@@ -0,0 +1,15 @@
+{
+  "name": "thinktecture-runtime-extensions",
+  "displayName": "Thinktecture Runtime Extensions",
+  "description": "Agent Skill for designing and implementing Smart Enums, Value Objects, and Discriminated Unions with Thinktecture.Runtime.Extensions.",
+  "version": "1.0.0",
+  "author": {
+    "name": "Pawel Gerr",
+    "url": "https://github.com/PawelGerr"
+  },
+  "homepage": "https://github.com/PawelGerr/Thinktecture.Runtime.Extensions",
+  "repository": "https://github.com/PawelGerr/Thinktecture.Runtime.Extensions",
+  "license": "BSD-3-Clause",
+  "keywords": ["smart-enums", "value-objects", "discriminated-unions", "source-generator", "dotnet"],
+  "skills": ["./skills/"]
+}
diff --git a/README.md b/README.md
index 514088e8..aeafd5f7 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,13 @@ npx skills@latest add PawelGerr/Thinktecture.Runtime.Extensions
 
 This copies the skill into `.claude/skills/` (or the equivalent folder for your agent). Add `-g` to install it globally for all your projects.
 
+**Claude Code plugin** -- Claude Code users can instead install the same skill as a plugin, which keeps it up to date without re-running a copy command:
+
+```
+/plugin marketplace add PawelGerr/Thinktecture.Runtime.Extensions
+/plugin install thinktecture-runtime-extensions@pawelgerr
+```
+
 **Context7 (MCP)** -- this library's documentation is indexed by [Context7](https://context7.com/pawelgerr/thinktecture.runtime.extensions). Agents with the Context7 MCP server configured can pull current docs on demand; reference the library ID `/pawelgerr/thinktecture.runtime.extensions` (or add `use context7` to your prompt).
 
 [Full documentation](https://github.com/PawelGerr/Thinktecture.Runtime.Extensions/wiki/AI-Coding-Assistants) -- what the skill covers, install scopes, agent targeting, and Context7 usage.