feat: Add Clerk integration plugin

AGENTS.md

@@ -78,8 +78,3 @@ If any of the above commands fail or show errors:
   - `api.workflow.*` - Workflow CRUD and operations (create, update, delete, deploy, execute, etc.)
 - **No Barrel Files**: Do not create barrel/index files that re-export from other files
 
-## Plugin Guidelines
-- **No SDK Dependencies**: Plugin step files must use `fetch` directly instead of SDK client libraries. Do not add npm package dependencies for API integrations.
-- **No dependencies field**: Do not use the `dependencies` field in plugin `index.ts` files. All API calls should use native `fetch`.
-- **Why**: Using `fetch` instead of SDKs reduces supply chain attack surface. SDKs have transitive dependencies that could be compromised.
-

README.md

@@ -80,6 +80,7 @@ Visit [http://localhost:3000](http://localhost:3000) to get started.
 
 <!-- PLUGINS:START - Do not remove. Auto-generated by discover-plugins -->
 - **AI Gateway**: Generate Text, Generate Image
+- **Clerk**: Get User, Create User, Update User, Delete User
 - **Firecrawl**: Scrape URL, Search Web
 - **Linear**: Create Ticket, Find Issues
 - **Resend**: Send Email

app/api/ai/generate/route.ts

@@ -220,6 +220,9 @@ Edge structure:
   "type": "default"
 }
 
+TEMPLATE VARIABLES: To reference data from another node, use {{@nodeId:Label.field}}
+Example: If node id="create-user" label="Create User" returns {user: {id: "..."}}, reference it as {{@create-user:Create User.user.id}}
+
 WORKFLOW FLOW:
 - Trigger connects to first action
 - Actions connect in sequence or to multiple branches

app/api/integrations/[integrationId]/test/route.ts

@@ -69,6 +69,9 @@ export async function POST(
           integration.config.superagentApiKey
         );
         break;
+      case "clerk":
+        result = await testClerkConnection(integration.config.clerkSecretKey);
+        break;
       default:
         return NextResponse.json(
           { error: "Invalid integration type" },
@@ -375,3 +378,54 @@ async function testSuperagentConnection(
     };
   }
 }
+
+async function testClerkConnection(
+  secretKey?: string
+): Promise<TestConnectionResult> {
+  try {
+    if (!secretKey) {
+      return {
+        status: "error",
+        message: "Secret key is required",
+      };
+    }
+
+    // Validate key format
+    if (
+      !(secretKey.startsWith("sk_live_") || secretKey.startsWith("sk_test_"))
+    ) {
+      return {
+        status: "error",
+        message:
+          "Invalid secret key format. Must start with sk_live_ or sk_test_",
+      };
+    }
+
+    // Test by fetching users list
+    const response = await fetch("https://api.clerk.com/v1/users?limit=1", {
+      headers: {
+        Authorization: `Bearer ${secretKey}`,
+        "Content-Type": "application/json",
+        "User-Agent": "workflow-builder.dev",
+      },
+    });
+
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({}));
+      return {
+        status: "error",
+        message: error.errors?.[0]?.message || "Authentication failed",
+      };
+    }
+
+    return {
+      status: "success",
+      message: "Connection successful",
+    };
+  } catch (error) {
+    return {
+      status: "error",
+      message: error instanceof Error ? error.message : "Connection failed",
+    };
+  }
+}