How We Built a Safety-First Rust Agent CLI in Two Days Without Letting the Codebase Turn to Mush

The short version I think most AI-assisted software fails in one of two ways. The first failure mode is obvious. The code is sloppy, the boundaries are fuzzy, and the whole thing feels like a transcript that got committed by accident. The second failure mode is more subtle. The code is fine for a demo, but the repo has no durable planning model, no review trail, and no way to explain why one subsystem looks the way it does. A week later, nobody wants to touch it. grokrs avoided both. This repo is a Rust-only scaffold for a Grok-oriented agent CLI. It is safety-first by design. More importantly, it was built fast without taking the usual shortcuts that make a codebase hard to trust. The artifact trail shows a concentrated implementation burst across 2026-04-05 and 2026-04-06, but the result still has clear crate boundaries, deny-by-default policy handling, machine-readable planning, and a review system that is stronger than what I usually see in projects with much longer schedules. I wa