My Self-Evolving AI Agent Stopped Building Features and Started Engineering
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Post #1 covered the birth — death spirals, 39 tools, a self-written identity. Post #2 covered the pruning — the agent deleted its own code and built self-observation. Post #3 covered cost awareness — the agent tracked its own spend and built budget guards. This post is about what happened next: the agent stopped adding capabilities and started engineering the ones it had. 123 accepted generations. 24,612 attempts. 1,477 passing tests. And a system prompt that's 25% shorter than it was 42 gener