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Powershell Windows

davila7/claude-code-templates

PowerShell's syntax can bite you in ways other shells don't, and this skill exists to prevent those bites. It covers the critical gotchas like mandatory parentheses around cmdlets when using logical operators, the strict ASCII-only requirement that breaks if you use emoji or Unicode, and null checking patterns that prevent runtime explosions. You also get error handling conventions, the essential Depth parameter for JSON operations, and a clean script template. If you're working with Windows automation or find yourself debugging cryptic "unexpected token" errors, this reference cuts through the trial and error. It's the distilled pain of everyone who learned PowerShell the hard way.

skills.sh installs
454
GitHub stars
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last updated
Aug 21, 2026
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Install

$ npx -y skills add davila7/claude-code-templates --skill powershell-windows --agent claude-code

Installs into .claude/skills of the current project.

Files

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 parentheses when using logical operators.

2. Unicode/Emoji Restriction

CRITICAL: No Unicode in Scripts

Purpose❌ Don't Use✅ Use
Success✅ ✓[OK] [+]
Error❌ ✗ 🔴[!] [X]
Warning⚠️ 🟡[*] [WARN]
Infoℹ️ 🔵[i] [INFO]
Progress⏳[...]

Rule: Use ASCII characters only in PowerShell scripts.

3. Null Check Patterns

Always Check Before Access

❌ Wrong✅ Correct
$array.Count -gt 0$array -and $array.Count -gt 0
$text.Lengthif ($text) { $text.Length }

4. String Interpolation

Complex Expressions

❌ Wrong✅ Correct
"Value: $($obj.prop.sub)"Store in variable first
SKILL.md on GitHub

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Details

Repository
github.com/davila7/claude-code-templates
Category
Debugging
First seen
Jun 3, 2026

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