How do I install the Powershell Windows skill?

Run npx skillmds@latest add whiner9/powershell-windows in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Powershell Windows free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Powershell Windows?

whiner9 (@whiner9) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Powershell Windows by whiner9 — Agent Skill

Name: Powershell Windows
Rating: 4.2 (5 reviews)
Author: whiner9

File contents

PowerShell Windows — Scripting Rules

Essential rules for correct PowerShell usage on Windows. Follow these rules to avoid common errors when executing shell commands.

Core Principles

1. Command Separation

Wrong: cd "path" && command (bash syntax)
Correct: cd "path"; command (PowerShell syntax)

2. Path Quoting

Always use double quotes for paths with spaces:

cd "D:\My Projects\MyApp"

3. Script Execution

For .bat/.cmd files:

./gradlew clean build
.\gradlew.bat clean build

4. Docker Commands

Specify full path to docker-compose files:

docker-compose -f "D:\My Projects\app\docker-compose.yml" up -d

5. HTTP Requests

Wrong: curl -s http://localhost:9090/status
Correct:

Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing

6. Waiting/Delays

Wrong: timeout 10
Correct:

Start-Sleep -Seconds 10

7. JSON Handling

JSON parsing:

$response = Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing
$json = $response.Content | ConvertFrom-Json
$json | ConvertTo-Json -Depth 3

8. Process Checking

Process search:

Get-Process -Name "java" -ErrorAction SilentlyContinue

9. Docker Operations

Stop containers:

docker-compose -f "path\to\file.yml" down

Build images:

docker-compose -f "path\to\file.yml" build --no-cache

10. Error Handling

Ignore errors:

Get-Process -Name "java" -ErrorAction SilentlyContinue

Common Errors and Fixes

Error	Cause	Fix
`&& is not recognized`	Using bash syntax	Replace `&&` with `;`
`curl not found`	curl not installed on Windows	Use `Invoke-WebRequest`
`timeout not found`	timeout not supported	Use `Start-Sleep`
`Path not found`	Missing quotes on spaced path	Wrap path in double quotes

Correct Command Examples

# Change directory and execute command
cd "D:\My Projects\MyApp"; ./gradlew clean build -x test

# Wait and make HTTP request
Start-Sleep -Seconds 10; Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing

# Docker operations
docker-compose -f "D:\My Projects\MyApp\docker-compose.yml" down
docker-compose -f "D:\My Projects\MyApp\docker-compose.yml" build --no-cache
docker-compose -f "D:\My Projects\MyApp\docker-compose.yml" up -d

# Check server status
$response = Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing
$json = $response.Content | ConvertFrom-Json
Write-Host "Transport: $($json.mcp.transport)"

These rules are critically important for proper operation in Windows PowerShell environment.

---name: powershell-windowsdescription: PowerShell scripting rules for Windows environment. Use when running shell commands, Docker operations, or HTTP requests on Windows PowerShell.---# PowerShell Windows — Scripting RulesEssential rules for correct PowerShell usage on Windows. Follow these rules to avoid common errors when executing shell commands.## Core Principles### 1. Command Separation- **Wrong**: `cd "path" && command` (bash syntax)- **Correct**: `cd "path"; command` (PowerShell syntax)### 2. Path Quoting- **Always use double quotes** for paths with spaces: ```powershell cd "D:\My Projects\MyApp" ```### 3. Script Execution- For .bat/.cmd files: ```powershell ./gradlew clean build .\gradlew.bat clean build ```### 4. Docker Commands- Specify full path to docker-compose files: ```powershell docker-compose -f "D:\My Projects\app\docker-compose.yml" up -d ```### 5. HTTP Requests- **Wrong**: `curl -s http://localhost:9090/status`- **Correct**: ```powershell Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing ```### 6. Waiting/Delays- **Wrong**: `timeout 10`- **Correct**: ```powershell Start-Sleep -Seconds 10 ```### 7. JSON Handling- JSON parsing: ```powershell $response = Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing $json = $response.Content | ConvertFrom-Json $json | ConvertTo-Json -Depth 3 ```### 8. Process Checking- Process search: ```powershell Get-Process -Name "java" -ErrorAction SilentlyContinue ```### 9. Docker Operations- Stop containers: ```powershell docker-compose -f "path\to\file.yml" down ```- Build images: ```powershell docker-compose -f "path\to\file.yml" build --no-cache ```### 10. Error Handling- Ignore errors: ```powershell Get-Process -Name "java" -ErrorAction SilentlyContinue ```## Common Errors and Fixes| Error | Cause | Fix ||-------|-------|-----|| `&& is not recognized` | Using bash syntax | Replace `&&` with `;` || `curl not found` | curl not installed on Windows | Use `Invoke-WebRequest` || `timeout not found` | timeout not supported | Use `Start-Sleep` || `Path not found` | Missing quotes on spaced path | Wrap path in double quotes |## Correct Command Examples```powershell# Change directory and execute commandcd "D:\My Projects\MyApp"; ./gradlew clean build -x test# Wait and make HTTP requestStart-Sleep -Seconds 10; Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing# Docker operationsdocker-compose -f "D:\My Projects\MyApp\docker-compose.yml" downdocker-compose -f "D:\My Projects\MyApp\docker-compose.yml" build --no-cachedocker-compose -f "D:\My Projects\MyApp\docker-compose.yml" up -d# Check server status$response = Invoke-WebRequest -Uri "http://localhost:9090/status" -UseBasicParsing$json = $response.Content | ConvertFrom-JsonWrite-Host "Transport: $($json.mcp.transport)"```These rules are critically important for proper operation in Windows PowerShell environment.

Frequently asked questions

Powershell Windows