diff --git a/.github/workflows/harness.yml b/.github/workflows/harness.yml
index 178965d..623ab53 100644
--- a/.github/workflows/harness.yml
+++ b/.github/workflows/harness.yml
@@ -14,6 +14,6 @@ permissions: {}
 
 jobs:
   harness:
-    uses: Pollora/harness/.github/workflows/php-package.yml@v0.1.4
+    uses: Pollora/harness/.github/workflows/php-package.yml@v0.1.6
     permissions:
       contents: read
diff --git a/.harness.json b/.harness.json
index 1df732b..1e2f1a1 100644
--- a/.harness.json
+++ b/.harness.json
@@ -9,7 +9,6 @@
         "phpstan_baseline": 0
     },
     "observed": [
-        "Rector",
-        "Dependency analysis"
+        "Rector"
     ]
 }
diff --git a/composer-dependency-analyser.php b/composer-dependency-analyser.php
new file mode 100644
index 0000000..fca1394
--- /dev/null
+++ b/composer-dependency-analyser.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+use ShipMonk\ComposerDependencyAnalyser\Config\ErrorType;
+
+/*
+ * ARCH-07: the harness preset (WordPress classes and functions, the tests), plus what is specific to this package.
+ */
+$configuration = require __DIR__.'/vendor/pollora/harness/presets/composer-dependency-analyser.php';
+
+return $configuration
+    // The framework's facades: used only when Pollora is present (the class is checked first), absent when the package runs alone.
+    ->ignoreUnknownClasses(['Pollora\Support\Facades\Action', 'Pollora\Support\Facades\Filter'])
+    // AsyncFake is a testing helper: it asserts with PHPUnit, which every project that tests has.
+    ->ignoreErrorsOnPackage('phpunit/phpunit', [ErrorType::SHADOW_DEPENDENCY])
+    // Closures are queued with laravel/serializable-closure when it is installed (suggested); the code checks class_exists() first.
+    ->ignoreErrorsOnPackage('laravel/serializable-closure', [ErrorType::DEV_DEPENDENCY_IN_PROD]);
diff --git a/composer.json b/composer.json
index 5c66be6..cbdf932 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "mockery/mockery": "^1.6",
         "pestphp/pest": "^v3.8.2",
         "phpstan/phpstan": "^2.1.16",
-        "pollora/harness": "^0.1.4",
+        "pollora/harness": "^0.1.6",
         "szepeviktor/phpstan-wordpress": "^2.0"
     },
     "suggest": {