Agile Manifesto turns 25 – just in time for vibe coding to test it
The Register
February 19, 2026
AI-Generated Deep Dive Summary
The Agile Manifesto, drafted 25 years ago by a group of software developers at a Utah ski resort, continues to influence the tech industry as artificial intelligence reshapes how code is written. Jon Kern, one of the manifesto’s original signatories, sees AI-driven tools like Replit, which enable “vibe coding,” as both an exciting evolution and a potential source of risks. While he praises the technology for its ability to amplify developers’ strengths, he also warns it could expose weaknesses, particularly if over-relied upon. Kern highlights how companies might misuse these tools by cutting costs or assuming AI can replace human engineers entirely—a mindset that could lead to significant failures.
Kern draws parallels between the current trend and past misinterpretations of Agile principles, where simplicity and focus were often overlooked in favor of heavier processes. He cautions that while vibe coding can streamline development, it requires careful prompting and understanding to avoid pitfalls. For instance, he mentions a Replit user who reported unintended database deletions, underscoring the importance of responsible AI usage. Kern emphasizes that AI tools should enhance, not replace, human expertise, urging companies to grow their engineering teams rather than relying solely on automation.
Despite these risks, Kern remains optimistic about the potential of AI in software development. He likens writing effective prompts to behavior-driven development testing, where clarity and intentionality yield better code quality. However, he also warns that without a deep understanding of Agile principles, companies might fall into old traps of over-optimization or neglect long-term growth. His message is clear: as AI tools like Replit gain popularity, the need for agility—both in process and mindset—is more critical than ever.
For tech enthusiasts and professionals, this intersection of legacy methodologies and cutting-edge technology highlights a crucial balance between innovation and responsibility. The Agile Manifesto’s enduring relevance lies in its emphasis on adaptability, collaboration, and delivering value, principles that remain essential even as AI tools transform the coding landscape. Kern’s insights remind us that while AI can accelerate development, it cannot replace the human judgment and skill needed to ensure high-quality outcomes.
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Originally published on The Register on 2/19/2026