# Format, lint, test, inspect, and package

The Yeho wrapper keeps common engineering actions under one predictable command surface.

Last updated: 2026-09-09

Package: language | Status: stable

Tags: format, inspect, language, lint, package, powershell, test, tooling, tools, widget, yeho

Run the narrow command during iteration and the repository verification profile before treating a change as evidence.

```yh
.\tools\yeho.ps1 <command> <project>
```


## Tooling loop

Run the narrow command during iteration and the repository verification profile before treating a change as evidence.

Verification: command reference

```powershell
.\tools\yeho.ps1 format .\hello
.\tools\yeho.ps1 lint .\hello
.\tools\yeho.ps1 test .\hello
.\tools\yeho.ps1 inspect .\hello
.\tools\yeho.ps1 package .\hello
```


Use widget for YUI component workflows.

A passing narrow test is evidence only for the behavior it actually exercises.

Source: yeho/README.md; tools/yeho.ps1

AI training permission: https://demonhunterlabs.com/ai-use