Z Video Downloader

Community

tjxj

z-video-downloader

当用户给出视频链接、链接清单或 z-web-pack 的 04-media-inventory.md，并要求"下载视频""视频下载""帮我把这个视频下下来""下载 YouTube 视频""下载 B站/哔哩哔哩视频""下载 m3u8/mp4 直链""把视频保存到本地""批量下载这些视频""下载字幕""下载视频号""视频号下载"时必须使用。本 skill 支持单个、多个、文本清单和媒体清单输入，覆盖 YouTube、Bilibili、Vimeo、X/Twitter、TikTok、抖音、Instagram、Facebook、微信视频号等 yt-dlp 平台及常见视频直链；支持断点续传、重试、字幕、封面和下载历史，保存到 Video/Downloads 并生成报告。

Overview

Publisher	tjxj
Repository	`z-skills`
Skill name	`z-video-downloader`
Stars	548
Forks	102
Bundled files	3
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
3 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by tjxj on GitHub. Read the source before you install it.

Installation

Install the Z Video Downloader AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/tjxj/z-skills/tree/main/z-video-downloader
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/tjxj/z-skills.git /tmp/z-skills
mkdir -p .claude/skills
cp -r /tmp/z-skills/z-video-downloader .claude/skills/z-video-downloader

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Z Video Downloader in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Z Video Downloader on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Z Video Downloader is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

视频下载器

把用户给的视频链接下载成本地视频文件。网页素材采集只记录视频链接，真正下载统一交给本 skill。直链视频支持 .part 文件和 HTTP Range 续传，平台视频和 m3u8 使用 yt-dlp 的续传、分片并发与重试能力；遇到平台风控时优先使用导出的 cookies.txt 文件重试。微信视频号（weixin.qq.com/sph/ 分享链接）通过在线解析服务直接获取视频地址下载，无需本地安装额外工具。

依赖

Python：优先使用 /Users/zz/miniconda3/bin/python3
平台下载：/Users/zz/miniconda3/bin/yt-dlp
合并音视频：ffmpeg，当前通常在 /opt/homebrew/bin/ffmpeg

默认输出

所有文件默认保存到当前工作区的 Video/Downloads。安装在 .agent/skills 时会自动识别工作区；也可用 --out-root 或 ZHANGAI_ROOT 明确指定。

text
Video/Downloads/YYYY-MM-DD-主题/
├── 下载的视频文件.mp4
├── 下载的视频文件.info.json
├── download-report.md
└── download-report.json

常用命令

单个链接：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --title "主题名" \
  "https://www.bilibili.com/video/BV..."

多个链接：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --title "主题名" \
  "https://www.youtube.com/watch?v=..." \
  "https://www.bilibili.com/video/BV..."

直接读取 z-web-pack 的媒体清单：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --title "主题名" \
  --inventory "Clippings/Reading/本次资料包/04-media-inventory.md"

从文本批量下载，每行一个链接，空行和 # 注释会自动跳过：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --title "主题名" \
  --url-file "video-urls.txt"

遇到 YouTube bot 验证、B 站 412、登录可见内容：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --cookies-file "cookies/cookies.txt" \
  --title "主题名" \
  "视频链接"

微信视频号分享链接：

bash
/Users/zz/miniconda3/bin/python3 .agent/skills/z-video-downloader/scripts/download_video.py \
  --title "视频号主题" \
  "https://weixin.qq.com/sph/Axv548mzBF"

视频号链接会自动识别并通过在线解析服务下载，默认保存 H.264 和 H.265 两个版本。

命令行临时调试仍支持 --browser-cookies chrome，但网页服务应使用 --cookies-file，避免服务进程反复唤起 Chrome/Safari。

YouTube 无 cookie 时若 yt-dlp 被登录校验拦截，脚本默认会再尝试 Invidious local=true 代理 fallback，优先保存 360p progressive MP4。若明确只允许官方 yt-dlp 路线，可加：

bash
--no-invidious-fallback

已提供 cookie 时不会把链接转给第三方代理。

下载播放列表、合集、频道列表时，用户必须明确要整组下载，再加：

bash
--playlist

下载更高清时：

bash
--quality best

默认限制为 1080p，避免无意下载超大文件。用户明确要最高画质时才使用 --quality best。

下载中英文字幕并嵌入封面：

bash
--subtitles --sub-langs "zh.*,en.*" --embed-thumbnail

直链中断后复用原目录继续下载：

bash
--run-dir "Video/Downloads/原任务目录"

长期批量任务用下载历史避免重复：

bash
--download-archive "Video/Downloads/download-archive.txt"

执行流程

先确认用户给的是视频链接或视频直链；如果是网页素材采集、正文和图片也要保存，改用 z-web-pack。
如果链接来自 z-web-pack 的 04-media-inventory.md，直接传 --inventory，无需手工复制 Source URL。
运行 scripts/download_video.py。没有特殊要求时使用默认 1080p、单视频模式。
如果 YouTube 失败原因包含登录、bot 验证、cookies、captcha，脚本会自动尝试 Invidious 代理 fallback；若用户需要更高清或官方登录态，再使用 --cookies-file cookies/cookies.txt 重试。
如果 B 站或其他平台失败原因包含 HTTP 412、403、登录或 cookies，使用 --cookies-file cookies/cookies.txt 重试一次。
如果用户给的是合集、播放列表、UP 主空间、频道页，先确认用户确实要批量下载，再使用 --playlist。
完成后读取 download-report.md，最终回复给用户：
- skill 路径
- 输出目录
- 成功/失败数量
- 下载历史已跳过数量
- 成功文件名和大小
- 失败链接的原因与 cookie 重试提示
- 如果存在 .part，说明可以用同一输出目录继续下载

平台策略

mp4/webm/mov/m4v/mkv/flv/ogv 直链：脚本直接流式下载，保留 Referer 和 User-Agent。
m3u8、YouTube、Bilibili、Vimeo、X/Twitter、TikTok、抖音等：交给 yt-dlp。
微信视频号（https://weixin.qq.com/sph/xxx）：通过 sph.litao.workers.dev 在线解析服务获取 H.264/H.265 视频直链后下载，默认同时保存两个编码版本。无需微信登录态、无需安装证书。感谢 ltaoo/wx_channels_download 提供解析服务。
YouTube 直连被登录校验拦截时：尝试 Invidious local=true 代理端点，使用 Range 小块续传保存 360p MP4。
默认 --no-playlist，避免一个链接意外下载整套列表。
默认 --max-video-mb 2000，超出时失败并记录到报告。
默认 --write-info-json，保留视频元数据，方便后续追溯来源。
平台下载显式启用续传、临时文件、10 次下载重试、10 次分片重试和 4 路分片并发。
直链中断时保留 .part；使用 --run-dir 复用原任务目录会从已保存位置继续，完成后才改成正式视频文件。
输入必须是有效的 HTTP/HTTPS 地址；空清单、空白字符、内嵌账号密码、无效地址、缺失 cookie 文件会在创建输出目录前停止。
--download-archive 负责平台视频的历史去重；已在历史中的项目会记为“已跳过”，任务仍算正常完成。

收尾检查

下载后至少运行：

bash
find "Video/Downloads/本次目录" -maxdepth 1 -type f | sort
sed -n '1,160p' "Video/Downloads/本次目录/download-report.md"
find "Video/Downloads/本次目录" -maxdepth 1 -name '*.part' -print

如果本任务只下载视频，报告 Markdown 不含外链图片，无需调用图床 skill。若后续改成产出包含外链图片的 .md 文件，按项目规则调用 1-upload-images-to-picgo。

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Z Video Downloader AI skill do?

Why use Z Video Downloader on TypingMind?

Because you install it once and use it with any model. Z Video Downloader is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Z Video Downloader in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/tjxj/z-skills/tree/main/z-video-downloader. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Z Video Downloader?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Z Video Downloader?

As many as you like. As long as a model supports skills, you can use Z Video Downloader with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Z Video Downloader AI skill free?

It is published on GitHub by tjxj. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

视频下载器

依赖

默认输出

常用命令

执行流程

平台策略

收尾检查

Bundled files

Frequently asked questions

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