powershell-windows

PowerShell Windows patterns. Critical pitfalls, operator syntax, error handling.

Skills
Development
65

What it does and how to use it

A skill that teaches Claude Code to do development tasks well. It is packaged knowledge the model uses whenever it is relevant.

Install the skill (command above).
In Claude Code, describe what you need - the skill turns on by itself when the context fits.
No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/powershell-windows && curl -fsSL https://doutorai.pt/data/lib/skills__powershell-windows.md -o .claude/skills/powershell-windows/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

---
name: powershell-windows
description: PowerShell Windows patterns. Critical pitfalls, operator syntax, error handling.
allowed-tools: Read, Write, Edit, Glob, Grep, Bash
---

# PowerShell Windows Patterns

> Critical patterns and pitfalls for Windows PowerShell.

---

## 1. Operator Syntax Rules

### CRITICAL: Parentheses Required

| ❌ Wrong | ✅ Correct |
|----------|-----------|
| `if (Test-Path "a" -or Test-Path "b")` | `if ((Test-Path "a") -or (Test-Path "b"))` |
| `if (Get-Item $x -and $y -eq 5)` | `if ((Get-Item $x) -and ($y -eq 5))` |

**Rule:** Each cmdlet call MUST be in parenthese

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