dingtalk-message

Dingtalk-message is an integration skill for sending DingTalk (钉钉) messages across all of the platform's messaging channels. It solves the problem of the fragmented DingTalk messaging surface by routing a request to the correct channel and handling the request formats, credentials, and identity conversions each one needs. It covers custom group Webhook robots (text, Markdown, ActionCard, Link, FeedCard, with signed-security mode and @-mentions), enterprise internal application robots for one-to-one and group chat (including message recall and read-status queries), work notifications pushed to users or departments, and session-webhook replies inside callbacks.

The SKILL.md is a strategy guide backed by a detailed API reference and a helper script (`dt_helper.sh`). Its per-execution workflow identifies the channel via a scenario router, validates and collects required configuration, obtains the appropriate access token (new-style for robots, legacy for work notifications, none for webhooks), and executes the API call by writing multi-line logic to a temp script rather than using heredocs. Configuration and credentials (webhook URL and secret, app key and secret, agent ID, user IDs) are read and written through the helper script, and the skill enforces safe credential hygiene: secrets are never printed in full and are masked to their first four characters, and it converts unionId to userId since the message APIs require staff IDs.

It targets developers and operations teams who need to send notifications, alerts, cards, or work notices into DingTalk from automation. Behaviorally it calls official DingTalk endpoints with credentials sourced from local config via official tooling, masks secrets, and performs no exfiltration.