初始化项目结构，添加 .gitignore、package.json、pnpm-lock.yaml 和 src/index.ts 文件

.gitignore

@@ -0,0 +1,43 @@
+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+# Testing
+coverage/
+*.lcov
+
+# Production
+dist/
+build/
+out/
+
+# Misc
+.DS_Store
+*.pem
+
+# Debug
+*.log
+logs/
+
+# Editor
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# TypeScript
+*.tsbuildinfo
+
+# Environment variables
+.env
+.env.local
+.env.*.local
+
+# Temporary files
+*.tmp
+.cache/

package.json

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+{
+  "name": "test-zod",
+  "version": "0.0.1",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "abearxiong <xiongxiao@xiongxiao.me> (https://www.xiongxiao.me)",
+  "license": "MIT",
+  "packageManager": "pnpm@10.14.0",
+  "type": "module",
+  "dependencies": {
+    "zod": "^4.3.5"
+  }
+}

pnpm-lock.yaml

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+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    dependencies:
+      zod:
+        specifier: ^4.3.5
+        version: 4.3.5
+
+packages:
+
+  zod@4.3.5:
+    resolution: {integrity: sha512-k7Nwx6vuWx1IJ9Bjuf4Zt1PEllcwe7cls3VNzm4CQ1/hgtFUK2bRNG3rvnpPUhFjmqJKAKtjV576KnUkHocg/g==}
+
+snapshots:
+
+  zod@4.3.5: {}

src/index.ts

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+import { z } from 'zod'
+
+const name = z.string().optional().describe('The name of the user')
+// name.optional()
+// console.log(name.description) // Output: The name of the user
+
+console.log(JSON.stringify(name), name.description) // Output: The name of the user