Completions

Zed supports two sources for completions:

"Code Completions" provided by Language Servers (LSPs) automatically installed by Zed or via Zed Language Extensions.
"Edit Predictions" provided by external APIs like GitHub Copilot or Supermaven.

Code Completions

When there is an appropriate language server available, Zed will by-default provide completions of variable names, functions, and other symbols in the current file. You can disable these by adding the following to your zed settings.json file:

"show_completions_on_input": false

You can manually trigger completions with ctrl-space or by triggering the editor::ShowCompletions action from the command palette.

For more information, see:

Configuring Edit Predictions

GitHub Copilot

To use GitHub Copilot (enabled by default), add the following to your settings.json:

{
  "features": {
    "edit_prediction_provider": "copilot"
  }
}

You should be able to sign-in to GitHub Copilot by clicking on the Copilot icon in the status bar and following the setup instructions.

Supermaven

To use Supermaven, add the following to your settings.json:

{
  "features": {
    "edit_prediction_provider": "supermaven"
  }
}

You should be able to sign-in to Supermaven by clicking on the Supermaven icon in the status bar and following the setup instructions.

Using Edit Predictions

Once you have configured an Edit Prediction provider, you can start using edit predictions completions in your code. Edit predictions will appear as you type, and you can accept them by pressing tab or enter or hide them by pressing esc.

There are a number of actions/shortcuts available to interact with edit predictions:

editor: accept edit prediction (tab): To accept the current edit prediction
editor: accept partial edit prediction (ctrl-cmd-right): To accept the current edit prediction up to the next word boundary
editor: show edit prediction (alt-tab): Trigger an edit prediction request manually
editor: next edit prediction (alt-tab): To cycle to the next edit prediction
editor: previous edit prediction (alt-shift-tab): To cycle to the previous edit prediction

Disabling Edit Prediction

To disable predictions that appear automatically as you type, add the following to your settings.json:

{
  "show_edit_predictions": false
}

You can trigger edit predictions manually by executing editor: show edit prediction (alt-tab).

You can also add this as a language-specific setting in your settings.json to disable edit predictions for a specific language:

{
  "language": {
    "python": {
      "show_edit_predictions": false
    }
  }
}

completions.md