### Basic Package Size Check with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Perform a basic size check on an npm package to get minified, gzipped sizes, node_modules statistics, and bundle composition. No special setup is required beyond having Node.js and npm installed.

```bash
npx pkgsz lodash
```

--------------------------------

### Enable npm Scripts for Package Analysis

Source: https://context7.com/kshutkin/package-size/llms.txt

Use the -s flag to enable npm scripts during package installation. This is useful for packages that rely on postinstall scripts.

```bash
npx pkgsz @tstpkgs/with-scripts -s
```

```bash
npx pkgsz sharp -s
```

--------------------------------

### Show pkgsz Help Information

Source: https://context7.com/kshutkin/package-size/llms.txt

Display the help message for the pkgsz command to see all available options and their usage.

```bash
npx pkgsz --help
```

--------------------------------

### Run pkgsz CLI

Source: https://github.com/kshutkin/package-size/blob/main/README.md

Execute the pkgsz command-line tool with optional flags and a package name, optionally specifying a version.

```bash
npx pkgsz [flags] <package name> [version]
```

--------------------------------

### pkgsz Command Line Options Reference

Source: https://context7.com/kshutkin/package-size/llms.txt

This section lists all available CLI flags for pkgsz, including options for specifying the registry, exporting subpaths, controlling gzip and brotli compression, cleaning temporary directories, enabling scripts, interactive mode, and JSON output.

```bash
# Show help
npx pkgsz --help

# Output:
# Usage: pkgsz [flags] <package name> [version]
#
# Get the size of an npm package
#
# Options:
#   -r, --registry       The npm registry to use when installing the package
#   -e, --export         Reexport given subpath from the package (default: [".
```

```bash
# Common flag combinations
npx pkgsz lodash -j          # JSON output with gzip
npx pkgsz lodash -jg         # JSON output without gzip
npx pkgsz lodash -bg         # Text output with brotli only
npx pkgsz lodash -bjg        # JSON with brotli, no gzip
```

--------------------------------

### Analyze Package with Version Alias

Source: https://context7.com/kshutkin/package-size/llms.txt

Analyze a package by specifying its name and version using an alias format.

```bash
npx pkgsz lodash@4.17.21
```

--------------------------------

### Interactive Mode with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Enable interactive mode using the `-i` flag to interactively select subpath exports and dependencies to include in the bundle analysis. This is useful for fine-grained control over the analysis.

```bash
npx pkgsz lodash-es -i
```

--------------------------------

### Brotli Compression Measurement with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Enable brotli compression measurement for more accurate modern compression statistics. Use the `-b` flag for brotli alongside gzip, or `-bg` to use brotli instead of gzip.

```bash
npx pkgsz @tstpkgs/basic-esm -b
```

```bash
npx pkgsz @tstpkgs/basic-esm -bg
```

```bash
npx pkgsz @tstpkgs/basic-esm -bjg
```

--------------------------------

### Use Custom Registry with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Specify a custom npm registry for private packages or enterprise environments using the `-r` flag followed by the registry URL.

```bash
npx pkgsz my-private-package -r https://npm.company.com
```

```bash
npx pkgsz my-package -r http://localhost:4873
```

--------------------------------

### JSON Output for Programmatic Use with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Obtain structured JSON output for use in CI/CD pipelines or build tools. Use the `-jg` flags to enable JSON output with gzip compression.

```bash
npx pkgsz @tstpkgs/basic-esm -jg
```

--------------------------------

### Analyze Specific Package Version

Source: https://context7.com/kshutkin/package-size/llms.txt

Specify a version number to analyze a particular release of a package.

```bash
npx pkgsz lodash 4.17.21
```

--------------------------------

### Analyze Subpath Exports with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Analyze specific subpath exports when a package exposes multiple entry points. Use the `-e` flag to specify which exports to measure. The tool will first list available exports.

```bash
npx pkgsz @tstpkgs/subpath-exports-esm -bg
```

```bash
npx pkgsz @tstpkgs/subpath-exports-esm -bg -e ./second -e .
```

--------------------------------

### Disable Cleanup with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Keep the temporary directory after analysis using the `-c` flag. This is useful for debugging or manual inspection of the built bundle.

```bash
npx pkgsz lodash -c
```

--------------------------------

### Specify Package Version with pkgsz

Source: https://context7.com/kshutkin/package-size/llms.txt

Check the size of a specific version of an npm package. This can be done using the `@version` syntax or by providing the version as a separate argument. Supports scoped packages.

```bash
npx pkgsz lodash@4.17.20
```

```bash
npx pkgsz lodash 4.17.20
```

```bash
npx pkgsz @tstpkgs/basic-esm@0.0.1
```

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