AgentSelfEdit is an open-source sidecar that rewrites its own system prompt from execution feedback. It A/B tests edits and promotes only statistically-proven winners. Code: github.com/deghosal-2026/agent-self-edit I built an AI that rewrites its own prompts. It looked like it worked. It didn't. Over a single session, I found and fixed 31 issues. Nine of them were fundamental — each one made the system look like it was working when it wasn't. The most dangerous was this: the promotio...