Making Codex the brain and Gemini the writer: one engineer's path to self-improving skills
xiaohu · x · 2026-09-07
After weeks of failed attempts to make Codex skills self-improve, the author concluded that skill files alone can't do it—engineering decomposition is required. Spotting that Gemini 3.8 Flash writes well, they restructured the setup: Codex acts only as coordinator and reviewer, delegating writing to Gemini.
The key insight: Codex remembers nearly all conversations, so every piece of user feedback becomes continuous learning. By having Codex focus on capturing the user's preferences and quality standards—and auditing other modules' output rather than doing the work itself—the system achieves ongoing self-improvement.
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