Four APIs, One Conversation: The Composable Content Pipeline

The Glue Code Problem Every developer who has built a content processing pipeline knows the feeling. The hard part isn't the extraction logic, or the image transformation, or the PDF generation. The hard part is the 200 lines of plumbing between them: parse the response from API A, map it to the request shape for API B, handle the edge cases, write the retry logic, wire up the error handling. The business task is "get data from this document and generate a report." The actual work is three days