Dexter for VS Code / Cursor
Dexter is a lightning fast, full-featured Elixir language server optimized for speed on large codebases.
Features
- Go-to-definition, find references, rename, and more!
- Autocompletion with snippet support across aliases, imports, and
use injections
- Hover documentation for
@doc, @moduledoc, @typedoc, and @spec
- Near-instant format on save, including support for any formatter plugins your project has configured, like Styler
- Syntax highlighting for Elixir, EEx, HEEx, and LiveBook
- Monorepo-aware with automatic reindexing on git branch switches
See the Dexter repo for the full feature list.
Quick start
- Install Dexter
- Install this extension from the VS Code or Cursor marketplace
- Open any Elixir file — the index builds automatically on first startup
Add .dexter.db to your .gitignore:
echo ".dexter.db*" >> .gitignore
Configuration
| Setting |
Default |
Description |
dexter.binary |
"dexter" |
Path to the dexter binary |
dexter.followDelegates |
true |
Follow defdelegate to the target function definition |
dexter.stdlibPath |
"" |
Path to the Elixir stdlib lib/ directory. Auto-detected if not set |
dexter.debug |
false |
Enable verbose LSP logging (view with Output → Dexter) |
To enable format on save:
{
"[elixir]": { "editor.formatOnSave": true },
"[phoenix-heex]": { "editor.formatOnSave": true }
}
Development
git clone https://github.com/remoteoss/dexter-vscode.git
cd dexter-vscode
make install # installs to Cursor by default, or: make install-vscode
Releasing
- Create a release branch, bump the version in
package.json, and update CHANGELOG.md
- Merge the branch into
main
- Tag and push:
make release VERSION=0.2.0
CI will pick up the tag and publish the extension automatically.
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