This PR adds 4 unique skills that fill significant gaps in the current collection:
Xiaohongshu Content Strategist - Create viral content for Xiaohongshu (小红书), China's #1 lifestyle platform with 300M+ MAU. Platform-specific algorithm knowledge: save-rate optimization, search-first traffic model, native content formats (before/after, step-by-step, hidden gems), title formulas, and hashtag strategy.
WeChat Official Account Strategist - High-conversion content strategy for WeChat Official Accounts (微信公众号). Covers the full ecosystem: subscription vs service accounts, title engineering (6 proven formulas), article architecture (first-fold optimization, emotional peak design), Mini-Program integration, and private traffic (私域流量) conversion.
Chinese Market Content Engineer - Multi-platform Chinese content strategy for 知乎, 抖音, B站 with bilingual creation, cultural sensitivity, and compliance. The only skill covering the full Chinese digital ecosystem.
MCP Tool Developer - Full-stack MCP server development with TypeScript/Python. Covers specification primitives (tools, resources, prompts, sampling), transport options (stdio, SSE, Streamable HTTP), design patterns (API wrapper, file system, data transformation), testing, deployment, and registry publishing. Complements the existing MCP Builder skill with deeper tool design patterns.
All skills are from demo112/yunqu-ai-skills (MIT licensed)