Lark CLI is an official command-line interface tool for the Lark/Feishu collaboration platform that serves both human users and AI agents.
The tool addresses the need for programmatic access to Lark's ecosystem of business applications including messaging, documents, spreadsheets, calendar, email, and task management. It provides a three-layer architecture that lets users choose their level of abstraction: high-level shortcuts optimized for human and AI interaction, mid-level API commands that stay synchronized with the platform, or raw API access for complete coverage. The design emphasizes agent compatibility, with structured output formats and smart defaults intended to maximize success rates when called by AI systems.
Individual developers can get started within minutes through interactive login and one-click app creation. The tool covers eighteen business domains with over two hundred commands and includes AI Agent Skills for common workflows. For enterprises embedding the tool into their own platforms or agents, the extension packages allow centralized credential management through databases, vaults, or config centers, along with unified audit logging and restricted command surfaces, without requiring modifications to the CLI source code. The MIT license removes licensing barriers to adoption.
Development activity shows consistent maintenance with regular updates to command coverage and agent skill additions. The project maintains comprehensive documentation including security guidance on input injection protection and terminal output sanitization. The codebase includes native keychain credential storage for secure local use and supports both individual and enterprise deployment patterns through its extension architecture.
