Anthropic's claude.md requirement raises fragmentation fears among AI developers

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Anthropic's CEO announced that its development systems will only support a proprietary markdown file called claude.md for AI skill instructions, diverging from the AGENTS.md convention used by other AI agents. Critics argue this forces developers and companies to maintain duplicate configuration files that serve identical purposes, depending on which AI agent they use. Large enterprises with hundreds or thousands of such files have already voiced objections, as they would need to replicate them solely for Anthropic compatibility. The situation draws comparisons to Microsoft's early browser-era decision to bypass W3C standards, which led to fragmented, patch-heavy web development. The author uses this episode to revisit the broader case for digital sovereignty, arguing that dependence on a handful of dominant AI providers leaves businesses vulnerable to unilateral commercial decisions.

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