DeepSeek Harness Integrated Plugin for Feishu / Lark

The Lark plugin `dsh-lark-all` for DeepSeek Harness (Cordis) provides a message channel bridging solution that requires no public IP or callback server. It supports message and media handling, parallel task sessions, and process recovery notifications. After installation, it is configured automatically and requires Node.js 22.19+. App Secrets are resolved through the Harness credential service. The plugin supports sending and receiving files, images, and other media via slash commands or model tags, with automatic fallback for oversized files, enabling users to integrate with the Lark environment at low cost.