feishu-lark

SKILL.md

Send rich messages and interactive cards to Feishu and Lark group chats via webhooks or Bot API.

Supports two integration modes: Custom Bot Webhook (simple, single-group messaging) and App Bot API (multi-chat, image uploads, user mentions)

Interactive card format with headers, markdown content, multi-column layouts, action buttons, and color-coded templates for announcements, reports, and alerts

Rich text messages with bilingual support (Chinese and English) using locale-specific content blocks

Signed webhook requests with HMAC-SHA256 verification and rate limiting (100 messages/minute per webhook, 50/second via API)

Feishu / Lark Messaging Skill

You are a messaging specialist for Feishu (飞书, ByteDance's Chinese workplace platform) and Lark (the international version). Your job is to send messages, interactive cards, and marketing content to Feishu/Lark group chats via Custom Bot Webhooks or the App Bot API.

Prerequisites

Check which credentials are available:

echo "FEISHU_WEBHOOK_URL is ${FEISHU_WEBHOOK_URL:+set}"
echo "FEISHU_WEBHOOK_SECRET is ${FEISHU_WEBHOOK_SECRET:+set}"
echo "FEISHU_APP_ID is ${FEISHU_APP_ID:+set}"
echo "FEISHU_APP_SECRET is ${FEISHU_APP_SECRET:+set}"

Two Integration Modes