# What Is the `designmd` Alias for on Windows? CLI Compatibility Explained

> Learn what the designmd alias is on Windows. It's a dot-free CLI alternative that avoids file association issues with DESIGN.md, ensuring command execution.

- Repository: [Google Labs Code/design.md](https://github.com/google-labs-code/design.md)
- Tags: how-to-guide
- Published: 2026-06-25

---

**The `designmd` alias is a Windows-compatible, dot-free alternative to the [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) CLI binary that prevents file association conflicts where Windows mistakenly opens the DESIGN.md file instead of executing the command.**

When working with the `@google/design.md` package from the google-labs-code/design.md repository, Windows users encounter a unique command-line collision. The standard binary name [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) conflicts with the operating system's built-in Markdown file associations, causing unexpected behavior when invoking the tool. The `designmd` alias resolves this collision by providing a dot-free entry point that executes the same [`./dist/index.js`](https://github.com/google-labs-code/design.md/blob/main/./dist/index.js) entry point without triggering Windows file handler interference.

## Why the `designmd` Alias Exists on Windows

### The File Association Conflict

On Windows systems, files ending in `.md` are typically associated with Markdown editors or viewers. When you attempt to run a command named [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md), Windows may interpret this as a request to open a file named DESIGN.md rather than execute a CLI binary. This collision prevents the tool from running and instead launches the associated Markdown application.

### The Solution: A Dot-Free Binary Name

The maintainers addressed this by registering a second binary name—`designmd`—that contains no dots and therefore avoids Windows file association detection. Both names point to the identical entry point ([`./dist/index.js`](https://github.com/google-labs-code/design.md/blob/main/./dist/index.js)), ensuring functional parity across operating systems.

## Source Code Implementation

The dual binary registration occurs in the CLI package configuration. In [`packages/cli/package.json`](https://github.com/google-labs-code/design.md/blob/main/packages/cli/package.json), the `bin` field maps both names to the same entry point:

```json
{
  "bin": {
    "design.md": "./dist/index.js",
    "designmd": "./dist/index.js"
  }
}

```

This declaration ensures that when users install the package globally or run via npx, both commands resolve to the same executable logic. The README.md file explicitly documents this Windows-specific workaround, recommending the alias for all Windows-based workflows.

## Practical Usage Examples

### Running with npx

On Windows, always use the dot-free alias when invoking the tool via npx:

```bash

# Preferred on Windows (avoids file association conflict)

npx -p @google/design.md designmd lint DESIGN.md

```

On macOS or Linux, the original binary name works without issues:

```bash

# Equivalent on Unix-like systems

npx @google/design.md lint DESIGN.md

```

### npm Scripts Configuration

To ensure cross-platform compatibility in project scripts, reference the Windows-safe alias:

```json
{
  "scripts": {
    "design:lint": "designmd lint DESIGN.md",
    "design:check": "designmd check DESIGN.md"
  }
}

```

This configuration guarantees that team members on Windows can run `npm run design:lint` without encountering file association errors.

## Summary

- The `designmd` alias provides a **dot-free alternative** to [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) specifically for Windows compatibility.
- Both binaries execute the same [`./dist/index.js`](https://github.com/google-labs-code/design.md/blob/main/./dist/index.js) entry point as defined in [`packages/cli/package.json`](https://github.com/google-labs-code/design.md/blob/main/packages/cli/package.json).
- Windows file associations cause [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) to open Markdown files rather than run the CLI, making the alias essential for Windows users.
- The alias works identically across npx invocations and npm scripts, ensuring consistent behavior regardless of operating system.

## Frequently Asked Questions

### What causes the [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) command to fail on Windows?

Windows interprets the `.md` extension as a Markdown file association. When you type [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md), the operating system checks for a file with that name and opens it with the default Markdown viewer instead of executing the CLI binary registered in [`packages/cli/package.json`](https://github.com/google-labs-code/design.md/blob/main/packages/cli/package.json).

### Is the `designmd` alias available on macOS and Linux?

Yes. While primarily intended to solve Windows file association conflicts, the `designmd` alias is registered globally in the package `bin` map and functions identically on all platforms. macOS and Linux users can use either [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) or `designmd` interchangeably.

### Do [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) and `designmd` support the same CLI arguments?

Yes. Both commands are hard links to the same [`./dist/index.js`](https://github.com/google-labs-code/design.md/blob/main/./dist/index.js) entry point specified in [`packages/cli/package.json`](https://github.com/google-labs-code/design.md/blob/main/packages/cli/package.json). They accept identical arguments, subcommands (like `lint` or `check`), and configuration options.

### How do I verify which binary names are available for the package?

Check the `bin` field in [`packages/cli/package.json`](https://github.com/google-labs-code/design.md/blob/main/packages/cli/package.json) within the google-labs-code/design.md repository. This field explicitly lists all available binary names and their mapped entry points, confirming that both [`design.md`](https://github.com/google-labs-code/design.md/blob/main/design.md) and `designmd` resolve to the same implementation.