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Using Plugins

Psalm can be extended through plugins to find and fix domain-specific issues.

Using Composer-based plugins

Psalm plugins are distributed as composer packages.

Discovering plugins

You can find a list of plugins on Psalm’s own website, and also on Packagist. Alternatively you can get a list via the CLI by typing composer search -t psalm-plugin '.'

Installing plugins

composer require --dev <plugin-vendor/plugin-package>

Managing known plugins

Once installed, use the psalm-plugin tool to enable, disable and show available and enabled plugins.

To enable a plugin, run vendor/bin/psalm-plugin enable plugin-vendor/plugin-package.

To disable a plugin, run vendor/bin/psalm-plugin disable plugin-vendor/plugin-package.

vendor/bin/psalm-plugin show will show you a list of all local plugins (enabled and disabled).

Using your own plugins

Is there no plugin for your favourite framework / library yet? Create it! It's as easy as forking a repository, tweaking some docblocks and publishing the package to Packagist.

Consult Authoring Plugins chapter to get started.