What is vantasma-toolkit?

Vantasma-toolkit is a personal-use-only collection of Python tools and Claude Code skills for querying and working with data from WeChat and Feishu, two popular Chinese communication platforms. The project is explicitly labeled for personal learning purposes only and prohibits use on other people's accounts or for commercial data collection. The main component is vchat, a command-line tool with 63 subcommands that reads and decrypts WeChat's local database (the messages stored on your own device). After running a setup step that unlocks the encrypted local database, you can list recent conversations, pull chat history from a specific group, search across all messages by keyword, view group members and their avatars, or watch a chat in real time for new messages. Output can be formatted as JSON for use by AI agents. The local database uses SQLCipher encryption, which the tool handles during setup on macOS (with a Windows equivalent). Beyond vchat, the toolkit includes six Claude Code skills, reusable AI instruction sets that extend Claude Code's capabilities. These cover generating styled HTML daily summaries of WeChat group conversations, performing Chinese astrology analysis (combining four pillars, Zi Wei Dou Shu, and Liu Ren methods) and exporting the result as an HTML scroll and image, automating Feishu multi-dimensional table construction, converting Feishu meeting notes into client proposal documents, and calling DiDi ride-hailing through Feishu. Installing a skill means copying its folder into Claude Code's skills directory and restarting the tool.