diff --git a/docs/composer/plugin/drupal-dev-environment/index.md b/docs/composer/plugin/drupal-dev-environment/index.md
index ad1ff7fe37c2da0672a0501b1062bb35ae9ab79b..5fea776709a33c01396869e7aa14d87877bccf26 100644
--- a/docs/composer/plugin/drupal-dev-environment/index.md
+++ b/docs/composer/plugin/drupal-dev-environment/index.md
@@ -15,11 +15,10 @@ It provides a massive amount of testing tools, which can be executed out of the
 - [Dependency Analysis](../../../dev_tools/test.md#drupal-dependency-analysis)
 - [PHP Unit](../../../dev_tools/test.md#unitkernelfunctional-testing)
 - [PHP Code Sniffer](../../../dev_tools/test.md#php-code-sniffer)
-- [PHP PHPStan](../../../dev_tools/test.md#php-stan)
-- [PHP Lint](../../../dev_tools/test.md#php-code-sniffer)
+- [PHP Stan](../../../dev_tools/test.md#php-stan)
+- [PHP Lint](../../../dev_tools/test.md#php-lint)
 - [PHP LOC](../../../dev_tools/test.md#php-loc)
 - [PHP Mess Detection](../../../dev_tools/test.md#php-mess-detection)
-- [PHP Copy and Paste Detector](../../../dev_tools/test.md#php-code-sniffer)
-- [PHP Metrics](../../../dev_tools/test.md#php-code-sniffer)
+- [PHP Metrics](../../../dev_tools/test.md#php-metrics)
 - [PHP Stylelint](../../../dev_tools/test.md#php-code-sniffer)
 - [Eslint](../../../dev_tools/test.md#php-code-sniffer)
diff --git a/docs/dev_tools/test.md b/docs/dev_tools/test.md
index 6f521c125aee8108cc7bc82c572c9d4f58161614..2e387e3566cc4f0b78f6c2bbfddd1bda15912108 100644
--- a/docs/dev_tools/test.md
+++ b/docs/dev_tools/test.md
@@ -44,11 +44,10 @@ We have several tools to perform static code analysis.
 
 - [PHP Code Sniffer](#php-code-sniffer)
 - [PHP PHPStan](#php-stan)
-- [PHP Lint](#php-code-sniffer)
+- [PHP Lint](#php-lint)
 - [PHP LOC](#php-loc)
 - [PHP Mess Detection](../../../dev_tools/test.md#php-mess-detection)
-- [PHP Copy and Paste Detector](../../../dev_tools/test.md#php-code-sniffer)
-- [PHP Metrics](../../../dev_tools/test.md#php-code-sniffer)
+- [PHP Metrics](#php-metrics)
 - [PHP Stylelint](../../../dev_tools/test.md#php-code-sniffer)
 - [Eslint](../../../dev_tools/test.md#php-code-sniffer)
 
@@ -134,6 +133,22 @@ a test phpstan <file_ordirectory>
 Whether it is a directory, it runs the analysis for everything under this directory
 recursively.
 
+### PHP Lint
+
+You can execute PHP Lint for a specific Drupal contrib module:
+
+```phplint
+a test phplintmodule <contrib_module>
+```
+
+Now the entire code in that module will be analysed.
+
+If you want to analyse a custom module, just do the following:
+
+```phplint
+a test phplintmodule ../custom/<custom_module>
+```
+
 ### PHP LOC
 
 PHP LOC prints several metrics about your code, like the average size of a class.
@@ -164,6 +179,32 @@ a test phpmd <file_ordirectory> json <profile>
 Whether it is a directory, it runs the analysis for everything under this directory
 recursively.
 
+### PHP Metrics
+
+This useful tool provides more information as [PHP LOC](#php-loc). It adds for example:
+
+- complexity
+- bugs
+- object-oriented programming stats
+- coupling
+- etc.
+
+Note: **This can take a while depending on your module.**
+
+You can execute PHP Metrics for a specific Drupal contrib module:
+
+```phpmet
+a test phpmetricsmodule <contrib_module>
+```
+
+Now the entire code in that module will be analysed.
+
+If you want to analyse a custom module, just do the following:
+
+```phpmet
+a test phpmetricsmodule ../custom/<custom_module>
+```
+
 ## Unit/Kernel/Functional Testing
 
 To execute the tests, you can use a single command: