Nushell - Modern Structured Shell

This skill activates when working with Nushell (Nu), writing Nu scripts, working with structured data pipelines, or configuring the Nu environment.

What is Nushell?

Current stable: 0.113.1 (pre-1.0, breaking changes possible between minor versions)

Nushell is a modern shell that:

• Treats data as structured (not just text streams)
• Works cross-platform (Windows, macOS, Linux)
• Combines shell and programming language features
• Has built-in data format support (JSON, CSV, YAML, TOML, XML, etc.)

When Nushell over bash

• Nushell for scripts: any multi-line script, structured-data pipeline, or cross-platform automation. Bash one-liners with grep/awk/sed chains lose type information Nu keeps.
• jq for JSON one-liner parsing in bash contexts; Nu's open/from json/where/get replace jq inside Nu scripts.
• Bash remains for shell-only operations with no Nu alternative, and for embedded commands inside CI runners that only speak POSIX shell.