Prompts Are the New Source Code - Git Wasn’t Built for Them

Prompts are the new source code - but they don’t behave like source code. They’re iterative, conversational, and highly contextual. A single change can ripple through tone, structure, cost, and output quality in ways that aren’t obvious from a diff. Managing prompts as raw text files sucks they're buried in repos, tweaked through trial and error, and “tested” by manually pasting them into chat windows.

Traditional developer tools weren’t built for this kind of work. Git excels at tracking deterministic code, not prose. Diffs don’t show why a prompt changed, only that it did. Branches don’t capture experiments, only forks. The real question isn’t “will this compile?” but “does this produce better reasoning, more reliable structure, or fewer hallucinations?” Prompts need visibility, comparison, and fast feedback — not just version numbers.

That’s why I’m building a visual prompt building and testing tool. Prompts deserve to be designed, not just edited - broken into components, tested against real inputs, and evolved deliberately over time. A visual approach makes intent obvious, experimentation safe, and improvement measurable.

What is everyone is currently using and what annoys you the most?