A standardized approach for chaining Windows PowerShell commands reliably using try/catch logic and error handling instead of brittle bash-style operators.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install powershell-safe-chain
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install powershell-safe-chain using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is PowerShell Safe Chain?
The PowerShell Safe Chain skill is designed to solve the common issue of unreliable command sequencing in Windows environments. Unlike bash, PowerShell does not natively support the && operator for chaining; this skill provides a framework for implementing fail-fast logic, proper ErrorAction preferences, and structured exception handling. By incorporating these Openclaw Skills into your workflow, you ensure that scripts halt immediately on failure, preventing partial executions that could lead to data loss or system inconsistency.
PowerShell Safe Chain Use Cases
- Sequencing multiple file system operations like directory creation and file movement.
- Building robust CI/CD deployment scripts for Windows-based runners.
- Automating administrative tasks where error reporting and logs are mandatory.
- Developing complex PowerShell scripts that require variable splatting and clean parameter management.
How PowerShell Safe Chain Works
- Initialize the script environment by setting $ErrorActionPreference to Stop to ensure errors are not ignored.
- Encapsulate all sequential commands within a try/catch block to provide a clear execution path.
- Utilize native cmdlets like New-Item and Set-Location with the -Force flag for idempotent operations.
- Capture the current error object ($_) in the catch block to provide meaningful feedback and exit with a non-zero code upon failure.
PowerShell Safe Chain Setup
To integrate this pattern into your automation via Openclaw Skills, ensure your script follows the try/catch architecture. Use the following bash block as a template for your PowerShell files:
$ErrorActionPreference = 'Stop'
try {
# Sequence your commands here
New-Item -ItemType Directory -Path 'target' -Force
Set-Location 'target'
} catch {
Write-Error "Operation failed at step: $_"
exit 1
}
PowerShell Safe Chain Data Schema & Taxonomy
The skill enforces a verification schema to ensure all scripts meet safety requirements within Openclaw Skills environments:
| Criteria | Validation Metric | Purpose |
|---|---|---|
| No Anti-patterns | Absence of && |
Ensures compatibility with PowerShell syntax. |
| Fail-Fast | ErrorActionPreference set | Stops execution immediately upon any command error. |
| Exception Handling | try/catch present | Provides a recovery or logging path for failures. |
| Path Integrity | Join-Path usage | Prevents errors caused by inconsistent backslash/forward slash separators. |
PowerShell Safe Chain Advanced Features
- Parameter Splatting: Use hash tables to manage complex arguments for cleaner, more maintainable code.
- SecureString Integration: Handle sensitive credentials safely without hardcoding plain text.
- Conditional Chaining: Implement if-then patterns for dynamic logic based on file existence or system state.
- Pipeline Error Handling: Manage large data streams with Where-Object and error-aware piping.
SKILL.md
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