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在 OpenClaw 中安装
/install dalong-video-frames
功能描述
Extract frames or short clips from videos using ffmpeg.
使用说明 (SKILL.md)
Video Frames (ffmpeg)
Extract a single frame from a video, or create quick thumbnails for inspection.
Quick start
First frame:
{baseDir}/scripts/frame.sh /path/to/video.mp4 --out /tmp/frame.jpg
At a timestamp:
{baseDir}/scripts/frame.sh /path/to/video.mp4 --time 00:00:10 --out /tmp/frame-10s.jpg
Notes
- Prefer
--timefor “what is happening around here?”. - Use a
.jpgfor quick share; use.pngfor crisp UI frames.
安全使用建议
This looks safe for its stated purpose. Install it if you are comfortable installing ffmpeg, and make sure any --out path points somewhere safe because the generated frame may overwrite an existing file.
功能分析
Type: OpenClaw Skill
Name: dalong-video-frames
Version: 1.0.0
The skill provides a functional wrapper for ffmpeg to extract video frames, but the script 'scripts/frame.sh' lacks input sanitization for parameters like '--index', '--time', and '--out'. These variables are passed directly into shell commands and ffmpeg filter strings, creating a potential risk for command or filter injection if provided with crafted input. While the behavior aligns with the stated purpose, the lack of validation qualifies as a vulnerability.
能力评估
Purpose & Capability
The SKILL.md purpose and included script are coherent: both focus on extracting a video frame or thumbnail with ffmpeg.
Instruction Scope
The documented commands are explicit, user-directed examples and do not instruct the agent to ignore user intent, run in the background, or contact external services.
Install Mechanism
The only declared install requirement is ffmpeg via Homebrew, which is expected for this skill's stated purpose.
Credentials
The script writes to the user-provided output path and uses ffmpeg overwrite mode, so users should choose output paths carefully.
Persistence & Privilege
No credentials, persistent background behavior, privileged configuration, or long-running worker is shown in the artifacts.
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 dalong-video-frames - 安装完成后，直接呼叫该 Skill 的名称或使用
/dalong-video-frames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 video-frames skill.
- Extract single frames or short clips from videos using ffmpeg.
- Supports extracting frames at specific timestamps.
- Provides quick commands for generating thumbnails.
- Includes installation instructions for ffmpeg via Homebrew.
元数据
常见问题
Dalong Video Frames 是什么？
Extract frames or short clips from videos using ffmpeg. 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 40 次。
如何安装 Dalong Video Frames？
在 OpenClaw 或 Claude Code 对话框中运行命令「/install dalong-video-frames」即可一键安装，无需额外配置。
Dalong Video Frames 是免费的吗？
是的，Dalong Video Frames 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。
Dalong Video Frames 支持哪些平台？
Dalong Video Frames 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 Dalong Video Frames？
由 辉哥（@1yihui）开发并维护，当前版本 v1.0.0。
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