Adding a Third Step

Let's extend your workflow by adding a third step that generates a summary of the content.

Creating the Summary Step

Add this new step to your workflow file:

typescript

const generateSummaryStep = createStep({
  id: 'generate-summary',
  description: 'Creates a summary of the content',
  inputSchema: 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(),
    }),
  }),
  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(),
    }),
    summary: z.string(),
  }),
  execute: async ({ inputData }) => {
    const { content, type, wordCount, metadata } = inputData

    // Create a simple summary from first sentence
    const sentences = content.split(/[.!?]+/).filter(s => s.trim().length > 0)
    const firstSentence = sentences[0]?.trim() + '.'

    // Generate summary based on content length
    let summary = firstSentence
    if (wordCount > 50) {
      summary += ` This ${type} contains ${wordCount} words and takes approximately ${metadata.readingTime} minute(s) to read.`
    }

    console.log(`📝 Generated summary: ${summary.length} characters`)

    return {
      content,
      type,
      wordCount,
      metadata,
      summary,
    }
  },
})

Understanding the Pattern

Notice how this step:

Takes the output from the previous step as input
Adds new data (summary) while preserving existing data
Follows the same structure as other steps

Your third step is ready! Next, you'll update the workflow to include all three steps.