# Nushell

> Use this tool when you need to securely execute Nushell scripts and require structured output for automation workflows, data processing pipelines, or system administration tasks. It provides a single 'exec' tool that spawns Nushell processes, returning stdout, stderr, and exit codes in JSON format. Ideal for AI assistant interactions that demand powerful data manipulation capabilities.

Canonical page: https://skillsregistry.net/skills/cablehead-nushell  
JSON: https://api.skillsregistry.net/v1/skills/cablehead-nushell

## Description

A Rust-based MCP server that provides secure execution of Nushell scripts through a single 'exec' tool. Built using the rust-mcp-sdk, it spawns Nushell processes to execute provided scripts and returns structured output containing stdout, stderr, and exit codes in JSON format. The implementation is marked as destructive and non-idempotent, making it suitable for automation workflows, data processing pipelines, and system administration tasks where Nushell's powerful data manipulation capabilities are needed within AI assistant interactions.

## Trust

- **Trust score (0–1):** 0.86
- **Verification tier:** scanned
- **Last scanned:** 2026-09-19

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** devops-ci
- **Updated:** 2026-09-19

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/cablehead-nushell)
- **Repository:** <https://github.com/cablehead/mcp-server-nu>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "cablehead-nushell"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/cablehead-nushell` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/cablehead-nushell/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt