Feishu Chat Tool Feishu chat operations including group announcement reading/writing and group chat management. Actions Get Announcement Info Returns basic announcement information including type (doc or docx) and metadata. Get Full Announcement Returns complete announcement content. Supports both old (doc) and new (docx) announcement formats. List Announcement Blocks Returns all blocks for a docx-format announcement. Get Single Announcement Block Returns a single block from the announcement. Write Announcement For format: replaces the entire announcement content. For format: appends a new te…