Remove model specification from new-sdk-app command

The model field is no longer needed in the command frontmatter as model selection is now handled at a different level.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -46,6 +46,17 @@
       },
       "source": "./plugins/feature-dev",
       "category": "development"
+    },
+    {
+      "name": "security-guidance",
+      "description": "Security reminder hook that warns about potential security issues when editing files, including command injection, XSS, and unsafe code patterns",
+      "version": "1.0.0",
+      "author": {
+        "name": "David Dworken",
+        "email": "dworken@anthropic.com"
+      },
+      "source": "./plugins/security-guidance",
+      "category": "security"
     }
   ]
 }

plugins/agent-sdk-dev/.claude-plugin/plugin.json

@@ -0,0 +1,9 @@
+{
+  "name": "agent-sdk-dev",
+  "description": "Claude Agent SDK Development Plugin",
+  "version": "1.0.0",
+  "author": {
+    "name": "Ashwin Bhat",
+    "email": "ashwin@anthropic.com"
+  }
+}

plugins/agent-sdk-dev/agents/agent-sdk-verifier-py.md

@@ -1,7 +1,7 @@
 ---
 name: agent-sdk-verifier-py
 description: Use this agent to verify that a Python Agent SDK application is properly configured, follows SDK best practices and documentation recommendations, and is ready for deployment or testing. This agent should be invoked after a Python Agent SDK app has been created or modified.
-model: sonnet-4.5
+model: sonnet
 ---
 
 You are a Python Agent SDK application verifier. Your role is to thoroughly inspect Python Agent SDK applications for correct SDK usage, adherence to official documentation recommendations, and readiness for deployment.

plugins/agent-sdk-dev/agents/agent-sdk-verifier-ts.md

@@ -1,7 +1,7 @@
 ---
 name: agent-sdk-verifier-ts
 description: Use this agent to verify that a TypeScript Agent SDK application is properly configured, follows SDK best practices and documentation recommendations, and is ready for deployment or testing. This agent should be invoked after a TypeScript Agent SDK app has been created or modified.
-model: sonnet-4.5
+model: sonnet
 ---
 
 You are a TypeScript Agent SDK application verifier. Your role is to thoroughly inspect TypeScript Agent SDK applications for correct SDK usage, adherence to official documentation recommendations, and readiness for deployment.

plugins/agent-sdk-dev/commands/new-sdk-app.md

@@ -1,7 +1,6 @@
 ---
 description: Create and setup a new Claude Agent SDK application
 argument-hint: [project-name]
-model: sonnet-4.5
 ---
 
 You are tasked with helping the user create a new Claude Agent SDK application. Follow these steps carefully:

plugins/agent-sdk-dev/plugin.json

@@ -1,5 +0,0 @@
-{
-  "name": "agent-sdk-dev",
-  "description": "Claude Agent SDK Development Plugin",
-  "version": "1.0.0"
-}