# 创建第二个步骤

现在让我们创建一个第二个步骤，使用元数据增强已验证的内容。

## 增强步骤

将此步骤添加到您的工作流文件中：

```typescript
const enhanceContentStep = createStep({
  id: "enhance-content",
  description: "Adds metadata to validated content",
  inputSchema: z.object({
    content: z.string(),
    type: z.string(),
    wordCount: z.number(),
    isValid: z.boolean(),
  }),
  outputSchema: z.object({
    content: z.string(),
    type: z.string(),
    wordCount: z.number(),
    metadata: z.object({
      readingTime: z.number(),
      difficulty: z.enum(["easy", "medium", "hard"]),
      processedAt: z.string(),
    }),
  }),
  execute: async ({ inputData }) => {
    const { content, type, wordCount } = inputData;

    // Calculate reading time (200 words per minute)
    const readingTime = Math.ceil(wordCount / 200);

    // Determine difficulty based on word count
    let difficulty: "easy" | "medium" | "hard" = "easy";
    if (wordCount > 100) difficulty = "medium";
    if (wordCount > 300) difficulty = "hard";

    return {
      content,
      type,
      wordCount,
      metadata: {
        readingTime,
        difficulty,
        processedAt: new Date().toISOString(),
      },
    };
  },
});
```

## 注意输入模式

此步骤的输入模式与前一个步骤的输出模式匹配。这对于将步骤链接在一起很重要！

您的第二个步骤已准备就绪！接下来，您将学习如何将这些步骤链接在一起成为一个完整的工作流。