Building a Trustworthy Repo-Editing Coding Agent

A repo-editing coding agent is not a chatbot with tools stapled on. It is a system that reads a codebase, decides what to change, executes commands, edits files, and produces artifacts intended for human review and CI. That combination produces a predictable failure mode: the agent sounds right until it does something surprising, expensive, or irreversible. This tutorial describes how to build a…