Nushell Env Scoping

Q: What is a Claude Code skill and how does the Nushell Env Scoping skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Nushell Env Scoping is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Dev Tools · Sub-category: tools-misc · Last updated: 2026-06-09

This skill should be used when writing Nushell code that touches `$env` — setting or reading environment variables, persisting env across calls, scoping env to a closure, or debugging why an env mutation isn't visible somewhere. Covers `do --env`, `with-env`, the `for` vs `each` env-propagation distinction, and Nushell's automatic env vars. Trigger phrases: "env mutation", "$env", "scope", "load-env", "with-env", "do --env", "env doesn't propagate", "auto env var".

From the source SKILL.md

$env in nu is a record like any other, but it has scope semantics that bite hard if you don't know the rules. Closures isolate env by default. Some constructs propagate; most don't. Some vars can't be set manually at all. This skill names the rules.

What this skill does

Nushell Env Scoping is a community-contributed Claude Code skill in the tools-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/nushell-env-scoping/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Nushell Env Scoping Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/nushell-env-scoping
curl -L https://claudskills.com/skills/nushell-env-scoping/SKILL.md \
  -o ~/.claude/skills/nushell-env-scoping/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/nushell-env-scoping/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/nushell-env-scoping/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\nushell-env-scoping\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Nushell Env Scoping Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/nushell-env-scoping/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Nushell Env Scoping skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Nushell Env Scoping skill?

Use Nushell Env Scoping when your Claude Code task falls under the Dev Tools category — specifically in the tools misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Nushell Env Scoping" or describe the task and let Claude pick). Browse related skills at /category/tools/.

What is a Claude Code skill and how does the Nushell Env Scoping skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Nushell Env Scoping is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/zaynram/nu-fluency/blob/HEAD/skills/nushell-env-scoping/SKILL.md
Author: zaynram

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

zaynram. (2026). Nushell Env Scoping [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/nushell-env-scoping/

BibTeX

@misc{nushell-env-scoping-2026,
  author    = {zaynram},
  title     = {Nushell Env Scoping [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/nushell-env-scoping/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/nushell-env-scoping.svg)](https://claudskills.com/skills/nushell-env-scoping/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

More Dev Tools skills

Browse all Dev Tools skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Dev Tools skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore