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A personal Claude Code plugin marketplace — skills, MCP servers, and tools for everyday use.
npx claudepluginhub jttninjacode/claude-marketplaceEnglish learning skills for B2-level learners. Includes vocabulary lookup, sentence translation, exam solving, and a fill-in-the-blank quiz with Anki export.
A Claude Code plugin marketplace for productivity and learning tools.
Add this marketplace in Claude Code:
/plugin marketplace add JTtNinjaCode/claude-marketplace
Then install individual plugins:
/plugin install yt-sublearn@JTtNinjaCode
Learn English through YouTube videos. Downloads English subtitles, translates them into a bilingual EN/ZH file with timestamps using a haiku subagent, and generates an abstract-style summary.
Usage:
/yt-sublearn <youtube_url> [output_dir]
Output files (saved to output_dir, defaults to ./output/):
<video_title>.en.srt — original English subtitle file<video_title>_bilingual.txt — bilingual EN/ZH translation with timestampsHow it works:
/yt-sublearn
│
├─ 1. uv run download.py (PEP 723, auto-installs yt-dlp)
│ └─ validates English subs exist → downloads .en.srt
│
├─ 2. haiku subagent (lightweight, token-efficient)
│ └─ translates SRT → bilingual .txt with [HH:MM:SS] timestamps
│
└─ 3. main model
└─ reads bilingual file → writes Traditional Chinese summary
.
├── .claude-plugin/
│ └── marketplace.json — marketplace definition
└── plugins/
└── yt-sublearn/
├── .claude-plugin/
│ └── plugin.json — plugin metadata
├── skills/
│ └── yt-sublearn/
│ ├── SKILL.md — /yt-sublearn skill definition
│ └── scripts/
│ └── download.py — PEP 723 standalone script (yt-dlp)
└── agents/
└── yt-subtitle-translator.md — haiku translator subagent
MIT — see LICENSE.