DSPy is the 'adult in the room' for AI engineering, treating prompts as optimizable parameters rather than magic spells. It fundamentally shifts the workflow from 'prompt engineering' to 'compiling' logic, making it essential for teams building complex, production-grade pipelines where determinism matters. If you just want to chat with a PDF, it's overkill; if you're building a self-improving agentic system, it's the future.