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Capture Windows Screen

作者 Hansheng-Li · GitHub ↗ · v0.1.0 · MIT-0
cross-platform ⚠ suspicious
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在 OpenClaw 中安装
/install capture-windows-screen
功能描述
Capture the current Windows desktop from this WSL/OpenClaw environment and return the PNG path for inspection or delivery. Use when the user asks to screensh...
使用说明 (SKILL.md)

Capture Windows Screen

Use the bundled script for screenshot requests in this environment. It calls the Windows PowerShell helper, copies the PNG into a chosen staging folder, and prints the staged path.

Use two staging modes:

  • Analysis / inspection: keep the default workspace tmp-media/ staging.
  • Messaging-surface delivery: prefer ~/.openclaw/media/outbound/ so the file is already in OpenClaw's managed outbound media store.

Quick workflow

  1. For analysis or inspection, run bash scripts/capture-windows-screen.sh from this skill directory.
  2. For delivery back to a chat app, run STAGE_DIR=/home/lhs/.openclaw/media/outbound bash scripts/capture-windows-screen.sh.
  3. Treat the printed path as the staged screenshot to use next.
  4. If the user wants the image in chat, prefer the managed outbound path from step 2 and send it with a bare MEDIA: line when possible.
  5. If the user wants analysis, inspect the staged image after capture.

Commands

Analysis / inspection path:

bash scripts/capture-windows-screen.sh

Delivery-safe path for chat apps:

STAGE_DIR=/home/lhs/.openclaw/media/outbound bash scripts/capture-windows-screen.sh

Expected output:

/home/lhs/.openclaw/workspace/tmp-media/latest-screen-YYYYMMDD-HHMMSS.png

or, for delivery-safe staging:

/home/lhs/.openclaw/media/outbound/latest-screen-YYYYMMDD-HHMMSS.png

Environment assumptions

This skill assumes these host-side paths exist:

  • PowerShell: /mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe
  • Capture helper: C:\OpenClaw\capture-screen.ps1
  • Screenshot output: C:\OpenClaw\latest-screen.png
  • WSL mirror path: /mnt/c/OpenClaw/latest-screen.png
  • Workspace staging directory for inspection copies: /home/lhs/.openclaw/workspace/tmp-media
  • Managed outbound media store for delivery retries / chat attachments: /home/lhs/.openclaw/media/outbound

Failure handling

  • If PowerShell or the helper script is missing, check local machine-specific notes before changing paths.
  • If the command succeeds but the PNG is missing, rerun once, then verify the helper still writes to C:\OpenClaw\latest-screen.png.
  • If the browser shows the image but Telegram or another chat app does not receive it, assume the file stayed at local-preview level. Restage it into /home/lhs/.openclaw/media/outbound and retry using only the managed outbound path.
  • Do not assume a workspace tmp-media/ path is delivery-safe just because the web UI can preview it.
  • Do not invent alternate screenshot commands unless the configured path is clearly broken.
安全使用建议
This skill appears to do what it says: call a Windows PowerShell helper to create a PNG and copy it into a staging folder. Before installing/using it, verify that C:\OpenClaw\capture-screen.ps1 exists and is trusted (it will be run under PowerShell with -ExecutionPolicy Bypass and could execute any PowerShell commands). Also confirm the hard-coded paths (/home/lhs/.openclaw/... and /mnt/c/OpenClaw/...) match your environment or override them by setting WIN_PS, OUT_WSL, or STAGE_DIR. If you cannot inspect the Windows helper or do not trust the machine environment, do not run the skill.
功能分析
Type: OpenClaw Skill Name: capture-windows-screen Version: 0.1.0 The skill facilitates host-side screen capture by executing a PowerShell script on the Windows host from WSL using '-ExecutionPolicy Bypass'. It relies on an external, unverified dependency (C:\OpenClaw\capture-screen.ps1) and contains hardcoded absolute paths for a specific user (/home/lhs/) in both SKILL.md and scripts/capture-windows-screen.sh. While the behavior aligns with the stated purpose, the reliance on pre-placed host-side artifacts and the high-privilege nature of crossing the WSL-to-Host boundary make it a security risk.
能力评估
ℹ Purpose & Capability
The skill's name/description match what it does: the included shell script invokes PowerShell to run a Windows-side helper and copies the produced PNG into a staging directory. The Windows helper path (C:\OpenClaw\capture-screen.ps1), the mirrored path (/mnt/c/OpenClaw/latest-screen.png), and a user-specific workspace (/home/lhs/...) are assumed rather than declared; this is coherent for the stated task but brittle and user-specific.
ℹ Instruction Scope
SKILL.md and the script stay within screenshot capture and staging. The script runs PowerShell with -ExecutionPolicy Bypass to execute the external helper script — expected for invoking a Windows helper but means the Windows-side script can run arbitrary PowerShell. The instructions do not read unrelated environment variables or exfiltrate data to external endpoints.
✓ Install Mechanism
No install step or external downloads. This is an instruction-only skill with a small packaged shell script — low install risk.
ℹ Credentials
The skill requests no credentials or env vars by metadata, and the script lets users override WIN_PS, OUT_WSL, and STAGE_DIR. However it assumes access to the Windows filesystem via /mnt/c and uses hard-coded paths (C:\OpenClaw, /home/lhs). These are reasonable for capturing a desktop image but require that the helper script and those paths exist and are trusted.
✓ Persistence & Privilege
always is false and the skill is user-invocable. It does not modify other skills or system-wide settings and does not request permanent presence or elevated platform privileges.
如何使用
  1. 确保已安装 OpenClaw（本地或 Docker 部署）
  2. 在对话框中输入安装命令：/install capture-windows-screen
  3. 安装完成后，直接呼叫该 Skill 的名称或使用 /capture-windows-screen 触发
  4. 根据 Skill 的参数说明提供必要输入，即可获得结构化输出
版本历史
v0.1.0
First public release of the Capture Windows Screen skill. Designed for OpenClaw running inside WSL2 on Windows. This skill captures the Windows host desktop through a PowerShell helper, stages the image for analysis or delivery, and avoids common path-related media delivery issues.
元数据
Slug capture-windows-screen
版本 0.1.0
许可证 MIT-0
累计安装 0
当前安装数 0
历史版本数 1
常见问题

Capture Windows Screen 是什么？

Capture the current Windows desktop from this WSL/OpenClaw environment and return the PNG path for inspection or delivery. Use when the user asks to screensh... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 117 次。

如何安装 Capture Windows Screen？

在 OpenClaw 或 Claude Code 对话框中运行命令「/install capture-windows-screen」即可一键安装，无需额外配置。

Capture Windows Screen 是免费的吗？

是的，Capture Windows Screen 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。

Capture Windows Screen 支持哪些平台？

Capture Windows Screen 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（cross-platform）。

谁开发了 Capture Windows Screen？

由 Hansheng-Li（@hansheng-li）开发并维护，当前版本 v0.1.0。

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