slack-block-kit

Block Kit is Slack's UI framework for creating rich, interactive messages, modals, and Home tabs. It uses a JSON-based structure with three main components:

| Messages | 50 | Notifications, bot responses, channel posts | | Modals | 100 | Forms, confirmations, multi-step workflows | | Home tabs | 100 | App dashboards, user-specific content |

| invalidblocks | Malformed JSON | Validate in Block Kit Builder | | toomanyblocks | Exceeds limit | Reduce to 50 (msg) or 100 (modal) | | invalidelement | Wrong element in block | Check element compatibility | | missingtext | Required text missing | Add text or fields to Section |

為訊息、模式和主頁標籤建立 Slack Block Kit UI。在建立 Slack 通知、互動式表單、機器人回應、應用程式儀表板或任何 Slack UI 時使用。涵蓋區塊（部分、操作、輸入、標題）、元素（按鈕、選擇器、日期選擇器）、組合物件和 slack-block-builder 庫。 來源：linehaul-ai/linehaulai-claude-marketplace。