diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index 6f67289..e5adefa 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "cloud-sql-sqlserver",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Connect to Cloud SQL for SQL Server",
   "author": {
     "name": "Google LLC",
diff --git a/.codex-plugin/plugin.json b/.codex-plugin/plugin.json
index 867ee17..c090659 100644
--- a/.codex-plugin/plugin.json
+++ b/.codex-plugin/plugin.json
@@ -1,6 +1,6 @@
 {
   "name": "cloud-sql-sqlserver",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Connect to Cloud SQL for SQL Server",
   "author": {
     "name": "Google LLC",
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 10f3091..b06ba91 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.2.0"
+  ".": "0.2.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d12bbf1..2a38b78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.2.1](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/compare/0.2.0...0.2.1) (2026-09-05)
+
+
+### Features
+
+* **plugin:** migrate from generated skills to the prebuilt MCP server ([#126](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/issues/126)) ([8858b0f](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/commit/8858b0fd066f1590ab7dad70ceacb1366af86a1f))
+* **plugin:** support agent plugin spec ([#124](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/issues/124)) ([9e4e899](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/commit/9e4e8990a4cd99ac39aac97189f8456a7fd10446))
+
 ## [0.2.0](https://github.com/gemini-cli-extensions/cloud-sql-sqlserver/compare/0.1.8...0.2.0) (2026-04-16)
 
 
diff --git a/README.md b/README.md
index 8a1488f..ef21a70 100644
--- a/README.md
+++ b/README.md
@@ -88,8 +88,8 @@ For the latest version, check the [releases page][releases].
 <summary id="antigravity">Antigravity</summary>
 
 You can use either of these two agents for Antigravity:
-- [Antigravity CLI](https://github.com/google-gemini/gemini-cli) version **v1.6.0** or higher
-- [Antigravity 2.0](https://antigravity.google/product/antigravity-2) version **v2.0.0** or higher.
+- [Antigravity CLI](https://github.com/google-gemini/gemini-cli) version **v0.2.1** or higher
+- [Antigravity 2.0](https://antigravity.google/product/antigravity-2) version **v0.2.1** or higher.
 
 <blockquote>
 💡 <strong>Tip — Migrating from Gemini CLI?</strong><br>
diff --git a/gemini-extension.json b/gemini-extension.json
index 99541d3..5a017a8 100644
--- a/gemini-extension.json
+++ b/gemini-extension.json
@@ -1,6 +1,6 @@
 {
   "name": "cloud-sql-sqlserver",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Connect to Cloud SQL for SQL Server",
   "mcpServers": {
     "cloud-sql-mssql": {
diff --git a/plugin.json b/plugin.json
index 86fe577..1374643 100644
--- a/plugin.json
+++ b/plugin.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
   "name": "cloud-sql-sqlserver",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Connect to Cloud SQL for SQL Server",
   "author": {
     "name": "Google LLC",