Local document knowledge base for DeepSeek Harness: library_add/remove/list, hybrid semantic+keyword library_search with diversity re-ranking, relevance filtering and lost-in-the-middle avoidance, citation-aware injection, library_cite_check and library_d

Enables Claude to search, download, upload, trash, rename, move, and share Google Drive files across multiple independently authenticated Google accounts through one local stdio connection, with scoped access and confirmation safeguards.

Enables MCP clients like Claude Code, Codex, Cursor, and Claude Desktop to search, read, and download attachments from NetEase mailboxes (163/126/yeah.net/188), wait for verification codes, and create drafts or send and move messages only after a two-stage preview and confirmation, with readonly, draft, and full permission modes.

Your own IMAP mailbox in any MCP client: search, read, flag, move; send and delete need confirm.