feat: add 13 Chinese Internet + AI Productivity Skills

[AaronAust1n]

PR: Add 13 Chinese Internet + AI Productivity Skills

Summary

This PR adds 13 ready-to-use Agent Skills that fill the gap in PilotDeck's skill ecosystem for Chinese-language and domestic-platform workflows.

Current state: PilotDeck ships with 26 skills (notion, obsidian, github, tmux, weather, etc.) — all targeting English-language / international platforms. There is zero coverage for China's major content platforms (WeChat, Zhihu, Bilibili, Douban, Juejin, Weibo) or Chinese-language AI research pipelines.

This PR adds:

• 6 Chinese content retrieval skills (WeChat articles, Zhihu columns, Bilibili metadata, Douban movies/books, Juejin search, Weibo hot search)
• 4 global AI/research monitoring skills (arXiv, Hacker News, GitHub trending, AI papers trending via OpenAlex)
• 3 content production skills (HTML intelligence reports, podcast scriptwriting, VoxCPM TTS)

All skills use the same SKILL.md format as existing ones (weather, skill-creator, etc.) and work with zero additional installation (12/13 need only curl + python3; voxcpm-tts optionally needs pip install voxcpm).

Skills Added

Skill	What it does	Auth
wechat-mp-fetch	Fetch WeChat Public Account article body	None (MicroMessenger UA)
zhihu-answer-fetch	Fetch Zhihu column articles (full) + answers (~2K)	None
bilibili-video-info	Video metadata + tags + danmaku XML	None
douban-media-lookup	Movie/book search + details (rating, cast, ISBN)	API key (documented)
juejin-article-search	Search + full-text extraction from SSR pages	None
weibo-hot-search	Real-time hot search (50 items + volumes + tags)	None (Referer required)
github-trending	Trending repos via Search API	Optional token
arxiv-cn-daily	Latest AI/ML papers by category	None
hackernews-ai-trending	HN AI stories via Algolia search	None
ai-papers-trending	Top-cited papers via OpenAlex + S2 fallback	None
html-report-cn	Self-contained Chinese HTML briefings	N/A (prompt skill)
podcast-scriptwriter	Two-host podcast script with tone annotations	N/A (prompt skill)
voxcpm-tts	Speech synthesis via VoxCPM (30 langs, cloning)	N/A (open-source model)

Testing

All 13 skills were tested against live public APIs in 3 rounds, 65 test cases total:

• Round 1: API connectivity verification (28 cases)
• Round 2: Failure fix + boundary testing (31 cases, 27 edge cases)
• Round 3: Independent retest of fixed paths + root-cause analysis (6 cases)

Final verdict: 8 GO / 5 GO_WITH_CAUTION / 0 NO_GO.

The 5 caution items each have limitations explicitly documented in their SKILL.md (truncation, weekend skipDays, leaked apikey risk, endpoint-specific quirks, GPU requirement).

Design Decisions

1. Anthropic Skill format (SKILL.md + YAML frontmatter) — consistent with existing PilotDeck skills (weather, skill-creator, etc.)
2. Zero external pip dependencies for 12/13 skills — only system curl + python3 standard library
3. Every curl command is verified against live APIs — no hypothetical endpoints
4. Each SKILL.md documents failure modes explicitly — what happens when things break, and how to recover
5. Fallback chains where applicable — WeChat (MicroMessenger UA → WeWe-RSS), Weibo (hot_band → tophub), Douban (API → web scrape), GitHub (Search API → HTML), AI papers (OpenAlex → Semantic Scholar)
6. Intentionally excluded: Xiaohongshu — aggressive anti-scraping + ¥4.9M court judgment (2025), no stable public path exists

Checklist

• All SKILL.md files have valid YAML frontmatter (name + description)
• All SKILL.md files are under 500 lines (max is voxcpm-tts at 213 lines)
• Descriptions are third-person, include WHAT + WHEN trigger words
• No external CSS/JS in html-report-cn template
• Rate limits documented and honored in example code
• No sensitive credentials (Douban apikey is public/leaked, documented as such)
• Consistent terminology throughout
• install.sh tested end-to-end

How to Test

cd skills/
# Test one skill (e.g., arxiv)
curl -s "https://export.arxiv.org/api/query?search_query=cat:cs.AI&sortBy=submittedDate&sortOrder=descending&max_results=3"
# Should return Atom XML with 3 paper entries

# Or run the full install
chmod +x install.sh && ./install.sh

Related

• Closes: #XX (if there's a "Chinese skill support" issue)
• Extends: existing skills/ directory
• Compatible with: PilotDeck ≥ 0.1.0, any Anthropic-Skill-format runtime