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linmillsd7

Best Video Downloader

作者 linmillsd7 · GitHub ↗ · v1.0.0 · MIT-0
cross-platform ✓ 安全检测通过
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在 OpenClaw 中安装
/install best-video-downloader
功能描述
Skip the learning curve of professional editing software. Describe what you want — download this YouTube video in MP4 format at the highest available resolut...
使用说明 (SKILL.md)

Getting Started

Share your online video URLs and I'll get started on video URL downloading. Or just tell me what you're thinking.

Try saying:

  • "convert my online video URLs"
  • "export 1080p MP4"
  • "download this YouTube video in MP4"

Getting Connected

Before handling any user request, establish a connection to the backend API. Show a brief status like "Connecting...".

If NEMO_TOKEN is in the environment, use it directly and create a session. Otherwise, acquire a free starter token:

  • Generate a UUID as client identifier
  • POST to https://mega-api-prod.nemovideo.ai/api/auth/anonymous-token with the X-Client-Id header
  • The response includes a token with 100 free credits valid for 7 days — use it as NEMO_TOKEN

Then create a session by POSTing to https://mega-api-prod.nemovideo.ai/api/tasks/me/with-session/nemo_agent with Bearer authorization and body {"task_name":"project","language":"en"}. The session_id in the response is needed for all following requests.

Tell the user you're ready. Keep the technical details out of the chat.

Best Video Downloader — Download and Save Online Videos

This tool takes your online video URLs and runs video URL downloading through a cloud rendering pipeline. You upload, describe what you want, and download the result.

Say you have a YouTube video URL at 1080p and want to download this YouTube video in MP4 format at the highest available resolution — the backend processes it in about 20-60 seconds and hands you a 1080p MP4.

Tip: shorter videos and lower resolutions download significantly faster.

Matching Input to Actions

User prompts referencing best video downloader, aspect ratio, text overlays, or audio tracks get routed to the corresponding action via keyword and intent classification.

User says... Action Skip SSE?
"export" / "导出" / "download" / "send me the video" → §3.5 Export ✅
"credits" / "积分" / "balance" / "余额" → §3.3 Credits ✅
"status" / "状态" / "show tracks" → §3.4 State ✅
"upload" / "上传" / user sends file → §3.2 Upload ✅
Everything else (generate, edit, add BGM…) → §3.1 SSE ❌

Cloud Render Pipeline Details

Each export job queues on a cloud GPU node that composites video layers, applies platform-spec compression (H.264, up to 1080x1920), and returns a download URL within 30-90 seconds. The session token carries render job IDs, so closing the tab before completion orphans the job.

Base URL: https://mega-api-prod.nemovideo.ai

Endpoint Method Purpose
/api/tasks/me/with-session/nemo_agent POST Start a new editing session. Body: {"task_name":"project","language":"\x3Clang>"}. Returns session_id.
/run_sse POST Send a user message. Body includes app_name, session_id, new_message. Stream response with Accept: text/event-stream. Timeout: 15 min.
/api/upload-video/nemo_agent/me/\x3Csid> POST Upload a file (multipart) or URL.
/api/credits/balance/simple GET Check remaining credits (available, frozen, total).
/api/state/nemo_agent/me/\x3Csid>/latest GET Fetch current timeline state (draft, video_infos, generated_media).
/api/render/proxy/lambda POST Start export. Body: {"id":"render_\x3Cts>","sessionId":"\x3Csid>","draft":\x3Cjson>,"output":{"format":"mp4","quality":"high"}}. Poll status every 30s.

Accepted file types: mp4, mov, avi, webm, mkv, jpg, png, gif, webp, mp3, wav, m4a, aac.

Skill attribution — read from this file's YAML frontmatter at runtime:

  • X-Skill-Source: best-video-downloader
  • X-Skill-Version: from frontmatter version
  • X-Skill-Platform: detect from install path (~/.clawhub/ → clawhub, ~/.cursor/skills/ → cursor, else unknown)

Every API call needs Authorization: Bearer \x3CNEMO_TOKEN> plus the three attribution headers above. If any header is missing, exports return 402.

Error Codes

  • 0 — success, continue normally
  • 1001 — token expired or invalid; re-acquire via /api/auth/anonymous-token
  • 1002 — session not found; create a new one
  • 2001 — out of credits; anonymous users get a registration link with ?bind=\x3Cid>, registered users top up
  • 4001 — unsupported file type; show accepted formats
  • 4002 — file too large; suggest compressing or trimming
  • 400 — missing X-Client-Id; generate one and retry
  • 402 — free plan export blocked; not a credit issue, subscription tier
  • 429 — rate limited; wait 30s and retry once

SSE Event Handling

Event Action
Text response Apply GUI translation (§4), present to user
Tool call/result Process internally, don't forward
heartbeat / empty data: Keep waiting. Every 2 min: "⏳ Still working..."
Stream closes Process final response

~30% of editing operations return no text in the SSE stream. When this happens: poll session state to verify the edit was applied, then summarize changes to the user.

Backend Response Translation

The backend assumes a GUI exists. Translate these into API actions:

Backend says You do
"click [button]" / "点击" Execute via API
"open [panel]" / "打开" Query session state
"drag/drop" / "拖拽" Send edit via SSE
"preview in timeline" Show track summary
"Export button" / "导出" Execute export workflow

Draft field mapping: t=tracks, tt=track type (0=video, 1=audio, 7=text), sg=segments, d=duration(ms), m=metadata.

Timeline (3 tracks): 1. Video: city timelapse (0-10s) 2. BGM: Lo-fi (0-10s, 35%) 3. Title: "Urban Dreams" (0-3s)

Common Workflows

Quick edit: Upload → "download this YouTube video in MP4 format at the highest available resolution" → Download MP4. Takes 20-60 seconds for a 30-second clip.

Batch style: Upload multiple files in one session. Process them one by one with different instructions. Each gets its own render.

Iterative: Start with a rough cut, preview the result, then refine. The session keeps your timeline state so you can keep tweaking.

Tips and Tricks

The backend processes faster when you're specific. Instead of "make it look better", try "download this YouTube video in MP4 format at the highest available resolution" — concrete instructions get better results.

Max file size is 500MB. Stick to MP4, WebM, MOV, AVI for the smoothest experience.

Export as MP4 for widest compatibility across devices and platforms.

安全使用建议
This skill delegates downloading and processing to a third-party service (mega-api-prod.nemovideo.ai). Using it will transmit any URLs and uploaded media to that backend, and the skill will create or reuse an API token (NEMO_TOKEN) — if you don't supply one it will obtain an anonymous token automatically. Before installing, consider: (1) Do you trust nemovideo.ai with the media and URLs you provide? (2) Are there copyright/privacy concerns with uploading content to a cloud service? (3) The skill reads its own frontmatter and inspects install paths to set attribution headers (minor environment info may be sent). If you prefer not to send media externally, use a local downloader (e.g., yt-dlp) or only use this skill with non-sensitive material. If you do proceed, verify the token source and review the service's privacy/terms and any billing/credit implications.
功能分析
Type: OpenClaw Skill Name: best-video-downloader Version: 1.0.0 The skill bundle provides instructions for an AI agent to interface with a video processing service at mega-api-prod.nemovideo.ai. It outlines standard API interactions for authentication, session management, and file uploading/rendering. The instructions include telemetry headers (X-Skill-Platform) and environment-specific configuration (~/.config/nemovideo/), but there is no evidence of data exfiltration, unauthorized command execution, or malicious prompt injection. The behavior is consistent with the stated purpose of a video downloader tool.
能力评估
✓ Purpose & Capability
The skill declares a video-download/editing purpose and only requests an API token (NEMO_TOKEN) and a config path (~/.config/nemovideo/) that are reasonable for contacting a remote rendering service. The listed endpoints and operations (upload, render, SSE) match the stated functionality.
ℹ Instruction Scope
SKILL.md instructs the agent to send user-provided URLs and uploaded media to mega-api-prod.nemovideo.ai, create sessions, stream SSE, and poll render status. That is expected for a cloud render pipeline, but it means user files and URLs will be transmitted externally. It also instructs reading the skill's frontmatter and detecting install path to populate attribution headers (requires local file/path inspection), which is within-skill scope but may expose limited environment info.
✓ Install Mechanism
No install spec and no code files (instruction-only). This is the lowest-risk install model — nothing is written to disk by the skill itself beyond what the platform typically does.
✓ Credentials
Only NEMO_TOKEN is required (primary credential) and a config path for the service is listed. These are proportionate to a third-party API client. The instructions do not request other unrelated secrets. Note: if NEMO_TOKEN is missing the skill will obtain an anonymous token from the service automatically.
✓ Persistence & Privilege
always:false and normal invocation settings. There is no install-time persistence or modification of other skills; the skill does not request 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 best-video-downloader
  3. 安装完成后，直接呼叫该 Skill 的名称或使用 /best-video-downloader 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
v1.0.0
Initial release of Best Video Downloader. - Download and save online videos by simply providing URLs or upload video files up to 500MB (MP4, MOV, WebM, AVI supported). - Supports downloading YouTube videos in MP4 at the highest available resolution within 20–60 seconds. - Anonymous access enabled: get a free 7-day token or use your own `NEMO_TOKEN`. - Smooth connection handling and clear status updates before operations. - Multiple workflows supported: quick downloads, batch processing, or iterative timeline edits. - Handles credits, errors, and backend session management automatically for a seamless experience.
元数据
Slug best-video-downloader
版本 1.0.0
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

Best Video Downloader 是什么？

Skip the learning curve of professional editing software. Describe what you want — download this YouTube video in MP4 format at the highest available resolut... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 118 次。

如何安装 Best Video Downloader？

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

Best Video Downloader 是免费的吗？

是的，Best Video Downloader 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。

Best Video Downloader 支持哪些平台？

Best Video Downloader 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 Best Video Downloader？

由 linmillsd7（@linmillsd7）开发并维护，当前版本 v1.0.0。

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