powershell-7-expert

Q: How do I install powershell-7-expert?

Run npx skills add https://github.com/404kidwiz/claude-supercode-skills --skill powershell-7-expert in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/powershell-7-expert/ (personal) or .claude/skills/powershell-7-expert/ (project).

by 404kidwizBackend & APIs

Expert in modern, cross-platform PowerShell Core. Specializes in Linux/macOS automation, parallel processing, REST API integration, and modern scripting patterns. Use for cross-platform automation and modern PowerShell features. Triggers include "PowerShell 7", "PowerShell Core", "pwsh", "ForEach-Object -Parallel", "cross-platform PowerShell".

Installs: 201
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/404kidwiz/claude-supercode-skills --skill powershell-7-expert

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads powershell-7-expert automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

PowerShell 7 Expert

Purpose

Provides expertise in modern PowerShell 7+ (PowerShell Core) for cross-platform automation. Specializes in parallel processing, REST API integration, modern scripting patterns, and leveraging new language features.

When to Use

Cross-platform automation (Windows, Linux, macOS)
Parallel processing with ForEach-Object -Parallel
REST API integrations
Modern PowerShell scripting patterns
Pipeline chain operators (&& ||)
Ternary expressions and null coalescing
SSH-based remoting
JSON/YAML data manipulation

Quick Start

Invoke this skill when:

Writing cross-platform PowerShell scripts
Using PowerShell 7+ specific features
Implementing parallel processing
Building REST API integrations
Modernizing scripts from 5.1

Do NOT invoke when:

Legacy Windows-only systems → use /powershell-5.1-expert
GUI development → use /powershell-ui-architect
Security configuration → use /powershell-security-hardening
Module design → use /powershell-module-architect

Decision Framework

PowerShell 7 Feature Selection?
├── Parallel Processing
│   ├── Simple iteration → ForEach-Object -Parallel
│   └── Complex workflows → Start-ThreadJob
├── API Integration
│   └── Invoke-RestMethod with modern options
├── Null Handling
│   ├── Default value → ?? operator
│   └── Conditional access → ?. operator
└── Pipeline Control
    └── && and || chain operators

Core Workflows

1. Parallel Processing

Identify parallelizable workload
Use ForEach-Object -Parallel
Set -ThrottleLimit appropriately
Handle thread-safe data access
Aggregate results
Handle errors from parallel runs

2. REST API Integration

Construct request parameters
Handle authentication (Bearer, OAuth)
Use Invoke-RestMethod
Parse JSON response
Implement pagination
Add retry logic for failures

3. Cross-Platform Script

Avoid Windows-specific paths
Use $PSVersionTable and $IsLinux/$IsWindows
Handle path separators correctly
Test on all target platforms
Use compatible modules
Document platform requirements

Best Practices

Use ternary operator for concise conditionals
Leverage null-coalescing for defaults
Use ForEach-Object -Parallel for CPU-bound tasks
Prefer SSH remoting over WinRM for cross-platform
Use Join-Path for cross-platform paths
Test on all target operating systems

Anti-Patterns

Anti-Pattern	Problem	Correct Approach
Hardcoded backslashes	Breaks on Linux/macOS	Join-Path or /
Windows-only cmdlets	Cross-platform failure	Check availability
Over-parallelization	Thread overhead	Tune ThrottleLimit
Ignoring $Error	Silent failures	Proper error handling
Assuming WinRM	Not cross-platform	SSH remoting

FAQ

What does the powershell-7-expert skill do?

How do I install powershell-7-expert?

Run npx skills add https://github.com/404kidwiz/claude-supercode-skills --skill powershell-7-expert in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/powershell-7-expert/ (personal) or .claude/skills/powershell-7-expert/ (project).

Which AI agents can use powershell-7-expert?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is powershell-7-expert safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains powershell-7-expert?

It is published by 404kidwiz in 404kidwiz/claude-supercode-skills. It has 201 recorded installs.