Line CLI
Commands
Flags, slash commands and keys in Line CLI.
Flags
| Command | What it does |
|---|---|
line | Start the agent in the current folder |
line "prompt" | Start with a prompt |
line -c | Continue the last session in this folder |
line -y | Start in auto mode (no approval prompts) |
line -m <model> -e <effort> | Model and effort for this run: supercosmos (flash, max, heavy), or auto |
line models | List models and their efforts |
line -p "prompt" | Print mode: answer once and exit (for scripts) |
line login / line logout | Sign in or out |
line status | Account, model and version |
line mcp | List configured MCP servers and their tools (line mcp trust <name> trusts a project server) |
line update | Update to the latest version |
line skill … | Manage skills |
line plugin … | Manage plugins |
Slash commands
Type / in the TUI for an autocomplete popup.
| Command | What it does |
|---|---|
/help | All commands and keys |
/model | Pick Auto or SuperCosmos (with its context window and size), then its effort |
/effort [name] | Pick the effort: Flash, Max or Heavy |
/plan [task] | Plan mode on/off: read-only research that ends in a plan to approve |
/mode ask|accept-edits|auto|plan | Permission mode (Shift+Tab cycles) |
/agents [n] | Sub-agents: live status and this session's runs; /agents <n> shows one run's steps and report |
/diff [file] [split] | This session's changes, unified or side by side |
/files | Files changed this session, by turn and agent, with line counts |
/undo | Revert the file changes of the last turn |
/rewind | Go back to before an earlier prompt: files restored and the conversation cut there |
/bashes | Background shells: list, output, kill |
/mcp | MCP servers: status, tools, trust, reload |
/hooks | Hooks: list and trust project hooks |
/todos | Show the agent's current plan |
/context | How much of the model's context window is in use, broken down |
/compact | Summarize the conversation to free context |
/rtl auto|on|off|terminal | Arabic / right-to-left layout |
/mouse on|off | Mouse-wheel scrolling (hold Shift to select text while it's on) |
/new, /clear | Start fresh |
/init | Write LINE.md project instructions |
/skills, /plugins | Manage skills and plugins |
/cost | Tokens and cost of this session |
/usage | How much of your plan's usage limits you've used and when they reset, credits, and tokens and cost per model |
/status | Model, sign-in and project status |
/sessions, /resume | Saved sessions |
/auto | Toggle auto mode |
/config | Settings |
/login, /logout, /update, /exit | Account and app |
Plugins add their own commands as /<plugin>:<command>. Type @ to attach a project file to your message (secret files and files outside the project are skipped).
/undo, /rewind and /diff cover changes made through Line's file tools; side effects of shell commands aren't tracked.
Keys
| Key | Action |
|---|---|
| Enter | Send |
| Shift+Enter, Alt+Enter, Ctrl+J | New line |
| Shift+Tab | Cycle mode: ask → accept edits → auto → plan |
| Tab | Complete a command or an @file |
| ↑ / ↓ | Prompt history |
| Mouse wheel, PgUp / PgDn | Scroll the conversation (Shift/Ctrl+↑↓ one line, Ctrl+Home / Ctrl+End top / bottom) |
| Esc | Interrupt the current turn |
| Ctrl+C | Interrupt, clear the input, or exit |
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