deusyu/rainman-skills

Real-time car comparison and purchase advisor with live data

Check whether a company, product, app, or App Store seller name is already used — domains, trademarks, App Store, packages, social, and state LLC availability

Query Chinese public holidays, 调休, and work schedules

Currency exchange rate query and conversion (ECB data)

Decide whether a Mac is worth upgrading — by real bottleneck, not chip generation

Turn Mermaid diagrams in conversations into clickable preview links (mmd.dyu.sh) — no copy-paste

Natural language bookkeeping for QianJi CSV

De-AI-flavor portrait prompts — 8-dimension framework, anti-plastic-skin self-check, per-model adaptation (Midjourney/SD/Flux/GPT-Image/Seedream)

Weather query — real-time weather, forecasts, and life indices (QWeather)

Publish prepared share-kit posts to Xiaohongshu through Chrome with preview, verification, and duplicate protection