Nothing works
Claude Code is behaving badly and you don’t know which layer is at fault. Diagnose by symptom instead of guessing.
The official Claude Code documentation answers what a thing is. These guides answer why it isn’t working on your machine, in your repo, with your stack.
That is the whole editorial rule. Every guide opens on a symptom someone actually typed into a search box, walks the diagnosis in order, and ends with something you can keep.
The first wave. High-intent, evergreen, and every one of them ends in a file you can drop into a project.
Nothing works
Claude Code is behaving badly and you don’t know which layer is at fault. Diagnose by symptom instead of guessing.
Config ignored
You edited a settings file and nothing changed. Almost always precedence — another file is winning.
settings.json
The settings file that earns its place in a real repo, grouped by what each field actually changes.
Each one follows the same shape, because the shape is what makes them useful under pressure: