I built an autonomous SRE that lets an LLM diagnose incidents — but never touch a shell unsupervised

I built an autonomous SRE system where a local LLM diagnoses production incidents, proposes a fix, and a deterministic engine decides whether that fix is ever allowed to run. The whole thing works inside your own network — zero data egress. It's called Sentinel. It's a prototype and a learning project: I started from scratch on a Mac and used it to go deep on distributed systems, gRPC, local LLM inference, and safe automation. This post walks through why it's built the way it is — the design de...