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在 OpenClaw 中安装
/install screengrab
功能描述
Quick macOS display snapshot. Captures what's currently on screen without opening a browser. Saves to /tmp or a custom path. Supports multiple displays and p...
安全使用建议
This skill simply runs the macOS screencapture tool and saves images locally. Before installing, confirm you intend to allow screenshots (they may include sensitive info) and that the host is macOS with /usr/sbin/screencapture available. Note the metadata omission: the registry did not mark required binaries even though the script needs system_profiler and screencapture. Check where files are written (default /tmp) and who can read them, and avoid running watch mode on shared/remote machines where captured images might expose secrets. If you need stricter controls, restrict who can invoke the skill or require the agent not to run it autonomously.
功能分析
Type: OpenClaw Skill
Name: screengrab
Version: 1.0.0
The 'screengrab' skill is a legitimate utility providing a Python wrapper for the macOS native '/usr/sbin/screencapture' tool. It allows an agent to capture screenshots, list displays, and perform periodic captures for debugging or visual verification purposes. The code (scripts/screengrab.py) uses safe subprocess execution with no network activity, data exfiltration, or obfuscation, and the instructions in SKILL.md are transparent and aligned with the tool's functionality.
能力评估
Purpose & Capability
The name, description, SKILL.md, and the included script all consistently implement a macOS screenshot wrapper using /usr/sbin/screencapture and system_profiler. Minor metadata mismatch: registry 'Required binaries' lists none, but the README/script require the macOS 'screencapture' and use 'system_profiler'. This is an accuracy/metadata issue, not a functional mismatch.
Instruction Scope
SKILL.md instructs running the included Python script to take/list/watch screenshots. The runtime instructions and the script confine actions to invoking local system commands, writing image files, and printing paths. The script does not read unrelated user files or environment variables, nor does it transmit data externally.
Install Mechanism
No install spec — instruction-only plus a single included script. Nothing is downloaded or written during install by the skill itself, reducing installation risk.
Credentials
Skill declares no required environment variables or credentials and the script does not access secrets. It does require local system utilities (screencapture, system_profiler) which are proportional to its purpose.
Persistence & Privilege
always is false and the skill does not request persistent system-level privileges, nor does it modify other skills or global agent configuration.
如何使用
- 确保已安装 OpenClaw（本地或 Docker 部署）
- 在对话框中输入安装命令：
/install screengrab - 安装完成后，直接呼叫该 Skill 的名称或使用
/screengrab触发 - 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
v1.0.0
- Initial release of screengrab: a minimal macOS tool for instantly capturing current screen state.
- Save screenshots to /tmp or any custom path; supports multiple displays.
- Includes watch mode for periodic screen captures.
- Lists connected displays and allows capture of a specific one.
- Designed for fast debugging, app state checks, and remote awareness—without launching browsers or extra dependencies.
元数据
常见问题
Screengrab 是什么？
Quick macOS display snapshot. Captures what's currently on screen without opening a browser. Saves to /tmp or a custom path. Supports multiple displays and p... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 174 次。
如何安装 Screengrab？
在 OpenClaw 或 Claude Code 对话框中运行命令「/install screengrab」即可一键安装，无需额外配置。
Screengrab 是免费的吗？
是的，Screengrab 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。
Screengrab 支持哪些平台？
Screengrab 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 Screengrab？
由 wrentheai（@wrentheai）开发并维护，当前版本 v1.0.0。
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