# Send PowerShell to your agent Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually. ## Fast path - Download the package from Yavira. - Extract it into a folder your agent can access. - Paste one of the prompts below and point your agent at the extracted folder. ## Suggested prompts ### New install ```text I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete. ``` ### Upgrade existing ```text I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run. ``` ## Machine-readable fields ```json { "schemaVersion": "1.0", "item": { "slug": "powershell", "name": "PowerShell", "source": "tencent", "type": "skill", "category": "开发工具", "sourceUrl": "https://clawhub.ai/ivangdavila/powershell", "canonicalUrl": "https://clawhub.ai/ivangdavila/powershell", "targetPlatform": "OpenClaw" }, "install": { "downloadUrl": "/downloads/powershell", "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=powershell", "sourcePlatform": "tencent", "targetPlatform": "OpenClaw", "packageFormat": "ZIP package", "primaryDoc": "SKILL.md", "includedAssets": [ "SKILL.md" ], "downloadMode": "redirect", "sourceHealth": { "source": "tencent", "slug": "powershell", "status": "healthy", "reason": "direct_download_ok", "recommendedAction": "download", "checkedAt": "2026-05-07T08:38:34.270Z", "expiresAt": "2026-05-14T08:38:34.270Z", "httpStatus": 200, "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=powershell", "contentType": "application/zip", "probeMethod": "head", "details": { "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=powershell", "contentDisposition": "attachment; filename=\"powershell-1.0.0.zip\"", "redirectLocation": null, "bodySnippet": null, "slug": "powershell" }, "scope": "item", "summary": "Item download looks usable.", "detail": "Yavira can redirect you to the upstream package for this item.", "primaryActionLabel": "Download for OpenClaw", "primaryActionHref": "/downloads/powershell" }, "validation": { "installChecklist": [ "Use the Yavira download entry.", "Review SKILL.md after the package is downloaded.", "Confirm the extracted package contains the expected setup assets." ], "postInstallChecks": [ "Confirm the extracted package includes the expected docs or setup files.", "Validate the skill or prompts are available in your target agent workspace.", "Capture any manual follow-up steps the agent could not complete." ] } }, "links": { "detailUrl": "https://openagent3.xyz/skills/powershell", "downloadUrl": "https://openagent3.xyz/downloads/powershell", "agentUrl": "https://openagent3.xyz/skills/powershell/agent", "manifestUrl": "https://openagent3.xyz/skills/powershell/agent.json", "briefUrl": "https://openagent3.xyz/skills/powershell/agent.md" } } ``` ## Documentation ### Output Behavior Everything not captured goes to output — even without return or Write-Output return doesn't stop output — previous uncaptured expressions still output Write-Host bypasses pipeline — use for display only, not data Assign to $null to suppress — $null = SomeFunction [void] cast also suppresses — [void](SomeFunction) ### Array Gotchas Single item result is scalar, not array — @(Get-Item .) forces array Empty result is $null, not empty array — check with if ($result) carefully Array unrolling in pipeline — @(1,2,3) | ForEach sends items one by one += on array creates new array — slow in loops, use [System.Collections.ArrayList] , is array operator — ,$item wraps single item in array ### Comparison Operators -eq, -ne, -gt, -lt — not ==, !=, >, < -like with wildcards, -match with regex — both return bool -contains for array membership — $arr -contains $item, not $item -in $arr (though -in works too) Case-insensitive by default — -ceq, -cmatch for case-sensitive $null on left side — $null -eq $var prevents array comparison issues ### String Handling Double quotes interpolate — "Hello $name" expands variable Single quotes literal — '$name' stays as literal text Subexpression for complex — "Count: $($arr.Count)" for properties/methods Here-strings for multiline — @" ... "@ or @' ... '@ Backtick escapes — \`n for newline, \`t for tab ### Pipeline $_ or $PSItem is current object — same thing, $_ more common ForEach-Object for pipeline — foreach statement doesn't take pipeline -PipelineVariable saves intermediate — Get-Service -PV svc | Where ... Pipeline processes one at a time — unless function doesn't support streaming ### Error Handling $ErrorActionPreference sets default — Stop, Continue, SilentlyContinue -ErrorAction Stop per command — makes non-terminating errors terminating try/catch only catches terminating — set ErrorAction Stop first $? is last command success — $LASTEXITCODE for native commands ### Common Mistakes No space before { in if — if($x){ works but if ($x) { preferred = is assignment in conditions — use -eq for comparison Function return array unrolls — return ,@($arr) to keep array Get-Content returns lines array — -Raw for single string Select-Object creates new object — properties are copies, not references ### Cross-Platform pwsh is PowerShell 7+ — powershell is Windows PowerShell 5.1 Paths use / or \\ — Join-Path for portable Environment vars: $env:VAR — works on all platforms Aliases differ across platforms — ls, cat may not exist, use full cmdlet names ## Trust - Source: tencent - Verification: Indexed source record - Publisher: ivangdavila - Version: 1.0.0 ## Source health - Status: healthy - Item download looks usable. - Yavira can redirect you to the upstream package for this item. - Health scope: item - Reason: direct_download_ok - Checked at: 2026-05-07T08:38:34.270Z - Expires at: 2026-05-14T08:38:34.270Z - Recommended action: Download for OpenClaw ## Links - [Detail page](https://openagent3.xyz/skills/powershell) - [Send to Agent page](https://openagent3.xyz/skills/powershell/agent) - [JSON manifest](https://openagent3.xyz/skills/powershell/agent.json) - [Markdown brief](https://openagent3.xyz/skills/powershell/agent.md) - [Download page](https://openagent3.xyz/downloads/powershell)