CLI Reference & Commands

Complete reference for the December command-line interface, keyboard shortcuts, and flags.

Overview

The December CLI (@trydecember/cli) runs directly inside your local environment, inspecting local git repositories, running tests, executing compilers, and editing files with atomic precision.

# Start December in the current working directory
december

# Start with a specific instruction prompt
december "Fix failing unit tests in packages/server"

# Start with a specific model
december --model claude-3-7-sonnet

Global CLI Commands

Command	Description
`december`	Start the interactive conversational session
`december login`	Authenticate with December Cloud or configure API keys
`december docs [section]`	Open technical documentation in your default browser
`december update`	Check for and install the latest CLI release
`december version`	Print current CLI version information

In-Session Keyboard Shortcuts

Ctrl + C: Interrupt current agent generation or abort running process
Ctrl + L: Clear terminal buffer while preserving session history
Up / Down: Navigate prompt input history
Esc: Cancel active modal or menu selection

In-Session Slash Commands

While in an active December session, use slash commands to steer execution:

/handoff: Synchronize local workspace state to app.trydecember.com
/login: Manage provider API keys or switch active authentication mode
/clear: Clear active chat transcript and reset agent memory
/model: Switch between supported LLMs (Claude, GPT-4o, Gemini, DeepSeek)
/docs: Open documentation directly in your browser
/exit or /quit: Terminate the terminal session

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