Disclosure: I build MailKite, and the open-source mail-parse library I use as the example is ours. But the pattern is the point — it isn't MailKite-specific, and you can apply it to anything that eats messy input.
Self-healing software is a system architected so that, when it hits input the real world throws at it, it doesn't crash and it doesn't stay broken: it records a structured, PII-free failure signature, and that signature feedy, an AI agent — that turns thebreakage into a permanent fix behind automated gates. In the agentic era the bottleneck is no
longer writing the fix; a capableeneck is architecting your softwareso an agent's fix is safe, automatic, and cumulative. This post is that pattern. I'll use our
open-source MIME parser (`mail-parsmessy input is where software goes to die — but the shape applies to almost any system that eats hostile real-world data.
Two honesty notes before I start, because a post that blurs shipped and planned isn't worth reading.
