Dev.to
6/27/2026

The original title is: "I Built an AI Agent That Rewrites Its Own Code (in ~150 lines)"
Original: I Built an AI Agent That Rewrites Its Own Code (in ~150 lines)
Short summary
A developer built a self-improving agent that rewrites its own code by testing changes and keeping only improvements, achieving 8/8 task completion from a single initial skill. The approach uses practical test-then-keep validation instead of unprovable mathematical proofs, mirroring how engineers actually work. Runnable Python code available; demonstrates autonomous learning is practical and safe enough for laptops.
- •Self-rewriting agent went from 1/8 to 8/8 tasks by autonomously adding skills and testing improvements
- •Darwin Gödel Machine replaces impossible mathematical proofs with practical test-based validation
- •Minimal, safe implementation (~150 lines Python) runs locally in under a second with no external APIs
Generated with AI, which can make mistakes.
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