diff --git a/canvas/src/components/CreateWorkspaceDialog.tsx b/canvas/src/components/CreateWorkspaceDialog.tsx
index 5528d9750..c46c84160 100644
--- a/canvas/src/components/CreateWorkspaceDialog.tsx
+++ b/canvas/src/components/CreateWorkspaceDialog.tsx
@@ -38,10 +38,11 @@ const DEFAULT_RUNTIME = "claude-code";
 const RUNTIME_OPTIONS = [
   { value: "claude-code", label: "Claude Code" },
   { value: "codex", label: "OpenAI Codex CLI" },
+  { value: "google-adk", label: "Google ADK" },
   { value: "hermes", label: "Hermes" },
   { value: "openclaw", label: "OpenClaw" },
 ];
-const BASE_RUNTIME_TEMPLATE_IDS = new Set(["claude-code-default", "codex", "hermes", "openclaw"]);
+const BASE_RUNTIME_TEMPLATE_IDS = new Set(["claude-code-default", "codex", "google-adk", "hermes", "openclaw"]);
 const DEFAULT_HEADLESS_INSTANCE_TYPE = "t3.medium";
 const DEFAULT_HEADLESS_ROOT_GB = 30;
 const DEFAULT_DISPLAY_INSTANCE_TYPE = "t3.xlarge";
diff --git a/canvas/src/components/__tests__/CreateWorkspaceDialog.test.tsx b/canvas/src/components/__tests__/CreateWorkspaceDialog.test.tsx
index a32d8074d..3b397d513 100644
--- a/canvas/src/components/__tests__/CreateWorkspaceDialog.test.tsx
+++ b/canvas/src/components/__tests__/CreateWorkspaceDialog.test.tsx
@@ -213,6 +213,7 @@ describe("CreateWorkspaceDialog", () => {
     expect(runtimeTexts).toEqual([
       "Claude Code",
       "OpenAI Codex CLI",
+      "Google ADK",
       "Hermes",
       "OpenClaw",
     ]);
diff --git a/canvas/src/lib/runtime-names.ts b/canvas/src/lib/runtime-names.ts
index bf6ed9780..d6e9ec03d 100644
--- a/canvas/src/lib/runtime-names.ts
+++ b/canvas/src/lib/runtime-names.ts
@@ -5,6 +5,7 @@
 const RUNTIME_NAMES: Record<string, string> = {
   "claude-code": "Claude Code",
   codex: "Codex",
+  "google-adk": "Google ADK",
   hermes: "Hermes",
   openclaw: "OpenClaw",
   kimi: "Kimi",
diff --git a/manifest.json b/manifest.json
index 5ba8c48bc..e6e6f0740 100644
--- a/manifest.json
+++ b/manifest.json
@@ -29,6 +29,7 @@
     {"name": "hermes", "repo": "molecule-ai/molecule-ai-workspace-template-hermes", "ref": "main"},
     {"name": "openclaw", "repo": "molecule-ai/molecule-ai-workspace-template-openclaw", "ref": "main"},
     {"name": "codex", "repo": "molecule-ai/molecule-ai-workspace-template-codex", "ref": "main"},
+    {"name": "google-adk", "repo": "molecule-ai/molecule-ai-workspace-template-google-adk", "ref": "main"},
     {"name": "seo-agent", "repo": "molecule-ai/molecule-ai-workspace-template-seo-agent", "ref": "main"}
   ],
   "org_templates": [
diff --git a/workspace-server/internal/provisioner/registry.go b/workspace-server/internal/provisioner/registry.go
index 4f1eee256..245cbd2b4 100644
--- a/workspace-server/internal/provisioner/registry.go
+++ b/workspace-server/internal/provisioner/registry.go
@@ -20,6 +20,7 @@ const defaultRegistryPrefix = "ghcr.io/molecule-ai"
 var knownRuntimes = []string{
 	"claude-code",
 	"codex",
+	"google-adk",
 	"hermes",
 	"openclaw",
 }
diff --git a/workspace-server/internal/provisioner/registry_test.go b/workspace-server/internal/provisioner/registry_test.go
index 39be4c455..e6e9b868f 100644
--- a/workspace-server/internal/provisioner/registry_test.go
+++ b/workspace-server/internal/provisioner/registry_test.go
@@ -53,8 +53,8 @@ func TestRuntimeImage_AllKnownRuntimes(t *testing.T) {
 		}
 	}
 	// Pin the count so adding a runtime requires explicit test acknowledgement.
-	if len(knownRuntimes) != 4 {
-		t.Errorf("knownRuntimes length = %d, want 4 (claude-code, codex, hermes, openclaw)", len(knownRuntimes))
+	if len(knownRuntimes) != 5 {
+		t.Errorf("knownRuntimes length = %d, want 5 (claude-code, codex, google-adk, hermes, openclaw)", len(knownRuntimes))
 	}
 }