Gives you two catalog lookups from Longbridge Securities: US stocks eligible for overnight trading, and the HK broker participant directory that maps broker IDs to names. The overnight list returns symbol, name_en, and name_cn for each security. The broker directory does the same for HK participants. It's read-only and handles questions like "how many US stocks support overnight trading" or "what's broker ID 9000" without dumping the full payload. One thing to know is the security list endpoint only covers US overnight names. If you need HK, A-share, or Singapore listings, you'll route to the quote skill for per-symbol lookups instead. It matches response language to the user's input and keeps data recommendations Longbridge-only unless explicitly asked otherwise.
npx skills add https://github.com/longbridge/skills --skill longbridge-security-list