Agent Skills › tonhowtf/omniget › omniget-fetch

omniget-fetch

GitHub

用于通过 OmniGet 工具链下载视频、音频或社交媒体帖子。支持多种平台，自动处理依赖安装与故障排查，将媒体文件保存至本地磁盘。

claude-plugin/omniget/skills/omniget-fetch/SKILL.md tonhowtf/omniget

Trigger Scenarios

用户请求下载视频或音频询问下载工具或失败原因

Install

npx skills add tonhowtf/omniget --skill omniget-fetch -g -y

More Options

Non-standard path

npx skills add https://github.com/tonhowtf/omniget/tree/main/claude-plugin/omniget/skills/omniget-fetch -g -y

Use without installing

npx skills use tonhowtf/omniget@omniget-fetch

指定 Agent (Claude Code)

npx skills add tonhowtf/omniget --skill omniget-fetch -a claude-code -g -y

安装 repo 全部 skill

npx skills add tonhowtf/omniget --all -g -y

预览 repo 内 skill

npx skills add tonhowtf/omniget --list

SKILL.md

Frontmatter

{
    "name": "omniget-fetch",
    "version": "0.1.0",
    "description": "This skill should be used when the user pastes a video, audio or social-post URL (YouTube, TikTok, Instagram, X\/Twitter, Reddit, Vimeo, Twitch, Bilibili, Threads, Pinterest, direct .mp4\/.m3u8 links) and asks to \"download this\", \"get this video\", \"save the audio\", \"grab this reel\", \"fetch this clip\", \"pull the mp4\", or otherwise wants the media file on disk. Also covers \"what tools do I have for downloading\" and \"why did the download fail\"."
}

Fetching media with OmniGet's tooling

Download media through the plugin's scripts instead of hand-writing yt-dlp invocations. The scripts reuse whatever the user already has, in this order: omniget-cli on PATH, the binaries OmniGet manages inside its app-data folder, then system yt-dlp/ffmpeg. Every script prints one JSON line on success.

Scripts live in ${CLAUDE_PLUGIN_ROOT}/scripts/.

Workflow

Run the download. Quote the URL.
```
bash "${CLAUDE_PLUGIN_ROOT}/scripts/fetch.sh" "<url>" [--audio] [--quality 720] [--out DIR]
```
Output: {"file","title","duration","size","platform","engine","id"}.
- Default output directory is ~/Downloads/omniget (override with OMNIGET_DIR or --out).
- --audio keeps only the audio track as .m4a. --quality N caps the video height.
- Instagram, Threads, X and Bilibili links go through omniget-cli when it is installed, which brings OmniGet's native extractors and cookie accounts.
Report the file path, size and duration in one or two sentences. Do not paste the JSON.
If the user only wants to know what the media says, use the omniget-transcribe skill instead of downloading video.

First run / missing tools

If fetch.sh reports yt-dlp not found (or a fresh machine has nothing set up), do not hand the user raw install commands. Offer one step:

bash "${CLAUDE_PLUGIN_ROOT}/scripts/setup.sh"

It detects the OS, lists what is missing, and installs it after a single confirmation (Mac via brew, Windows via winget/scoop; Linux runs the distro manager when it can, else prints the commands). Pass --yes to skip the prompt. If OmniGet (the desktop app) is installed, yt-dlp and ffmpeg are already managed and nothing needs installing.

When something fails

Run the doctor first, then act on what it reports:

bash "${CLAUDE_PLUGIN_ROOT}/scripts/doctor.sh" --check-keys

Symptom in stderr	Meaning	Action
`yt-dlp not found`	no engine available	show the doctor's install lines and ask before installing anything
`Sign in to confirm`, `login required`, `Private video`, HTTP 401/403	platform wants a session	use OmniGet's cookies (automatic when the app has an account for that site) or set `OMNIGET_COOKIES_FROM_BROWSER=chrome` and retry
HTTP 429, `rate-limit`	too many requests	wait 30 s and retry once; then stop and tell the user
`empty media response`, `HTTP 400` (Instagram/X)	rate-limited or login-gated	wait a few minutes and retry; if private, provide cookies (see below). `omniget-cli` (installed by setup) handles these sites better than raw yt-dlp
`DRM`, `SAMPLE-AES`, `Widevine`	protected stream	stop; explain that OmniGet does not bypass DRM
`Unsupported URL`	no extractor	say so; suggest the page's direct media link if the user has one
`Requested format is not available`	quality cap too strict	retry without `--quality`

On failure the scripts print a plain-language -> hint line classifying the cause (rate-limit / login / DRM). If a site that used to work now fails for everyone, the fix is usually stale tools: bash "${CLAUDE_PLUGIN_ROOT}/scripts/setup.sh" --update.

Automatic login retry. When a fetch is blocked by a login wall or rate-limit, the scripts retry once on their own using the browser you're logged into (auto-detected: Chrome/Brave/Edge/Firefox/Safari). No flag needed. Two things to know: on macOS the first browser-cookie read raises a one-time Keychain prompt (allow it, or choose Always Allow); and if your browser has several profiles and the default one isn't logged in, pin the right one — OMNIGET_COOKIES_FROM_BROWSER=chrome:"Profile 3". If it's still blocked after the retry, it's a hard rate-limit — wait a few minutes.

Rules

Downloads happen only when the user asked for the media. A bare URL with a question about its content is a transcription request, not a download request.
Never run an install command (brew, winget, apt, pip, uv) without the user's explicit yes; the doctor prints the commands, the user decides.
Cookies files and API keys are never printed, copied or committed.
Prefer --audio for podcasts, talks and anything the user will only listen to or transcribe.

Environment variables

OMNIGET_DIR (output), OMNIGET_DATA_DIR (OmniGet app data, auto-detected per OS), OMNIGET_TOOL_YT_DLP / OMNIGET_TOOL_FFMPEG (explicit binaries), OMNIGET_COOKIES_FROM_BROWSER (chrome, firefox, safari, edge).