Отладка внешних систем и сторонних API

testing

external-system-debugging is a Claude Code skill that provides a structured methodology for debugging external black-box systems — browsers, CDN/WAF layers, IM platforms (WeChat, DingTalk, Feishu), OS clipboards, rich-text editors, and third-party SaaS APIs. The core rule is to collect real environment data before forming any hypothesis: grab outerHTML before and after paste, capture full HTTP request/response with `curl -v` or mitmproxy, enumerate all clipboard MIME types via `navigator.clipboard.read()`, and take screenshots from both sender and receiver sides. The skill activates on paste/copy anomalies, cross-browser rendering inconsistencies, CDN-returned empty bodies, failures that cannot be reproduced locally, or when two consecutive code-only fixes produce no effect — the clearest signal to stop speculating and start capturing data. Every resolved case is documented in `references/case-{system}-{symptom}.md` to build a reusable knowledge base.