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---
name: login
description: Sign in to Grok Build for the native harness.
disable-model-invocation: true
allowed-tools: Bash
---
Tell the user to run the official Grok Build sign-in in their own terminal:
Linux/macOS (POSIX shell):
```sh
"$HOME/.local/share/multi-cli/bin/multi" login grok
```
Windows PowerShell:
```powershell
& "$HOME/.local/share/multi-cli/bin/multi.cmd" login grok
```
Windows cmd:
```bat
"%USERPROFILE%\.local\share\multi-cli\bin\multi.cmd" login grok
```
Use the command for the target shell; Windows installs `.cmd` and `.ps1` shims,
not an extensionless executable.
This helper invokes `grok login` without additional arguments; it does not select
a device flow. For headless sign-in, use the installed CLI's `grok login --help`
and run its supported flow directly in the user's terminal.
`/multi-usage` can report local credential presence, but a refresh token does not
prove the provider still accepts the login. Follow the CLI's authentication result.
Tell the user to relaunch Claude after a successful login to load the Grok
rows. Never accept, request, read, or print credentials in chat; native
credentials remain owned by `grok`.
