Add related plugins support to PluginDescription and Plugin

CHANGELOG.md

@@ -10,6 +10,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ### Added
 
 - Plugins can be deprecated now (CMEM-6706)
+- Plugins can now reference related plugins via `related_plugins` (CMEM-7549)
 
 ## [4.16.1] 2026-02-20
 

cmem_plugin_base/dataintegration/description.py

@@ -62,6 +62,18 @@ def __str__(self):
         return f"""data:{self.mime_type};base64,{data_base64}"""
 
 
+class PluginReference:
+    """A reference to a related plugin.
+
+    :param plugin_id: The identifier of the related plugin.
+    :param description: An optional description of the relationship.
+    """
+
+    def __init__(self, plugin_id: str, description: str = "") -> None:
+        self.plugin_id = plugin_id
+        self.description = description
+
+
 class PluginParameter:
     """A plugin parameter.
 
@@ -188,6 +200,7 @@ class PluginDescription:
     :param actions: Custom plugin actions.
     :param deprecation: Optional deprecation message.
         If set, the plugin will be marked as deprecated in the UI.
+    :param related_plugins: Optional list of references to related plugins.
     """
 
     def __init__(  # noqa: PLR0913
@@ -202,6 +215,7 @@ def __init__(  # noqa: PLR0913
         icon: Icon | None = None,
         actions: list[PluginAction] | None = None,
         deprecation: str | None = None,
+        related_plugins: list[PluginReference] | None = None,
     ) -> None:
         #  Set the type of the plugin. Same as the class name of the plugin
         #  base class, e.g., 'WorkflowPlugin'.
@@ -225,23 +239,15 @@ def __init__(  # noqa: PLR0913
             )
         else:
             self.plugin_id = plugin_id
-        if categories is None:
-            self.categories = []
-        else:
-            self.categories = categories
+        self.categories = categories if categories is not None else []
         self.label = label
         self.description = description
         self.documentation = documentation
-        if parameters is None:
-            self.parameters = []
-        else:
-            self.parameters = parameters
+        self.parameters = parameters if parameters is not None else []
         self.icon = icon
-        if actions is None:
-            self.actions = []
-        else:
-            self.actions = actions
+        self.actions = actions if actions is not None else []
         self.deprecation = deprecation
+        self.related_plugins = related_plugins if related_plugins is not None else []
         for action in self.actions:
             action.validate(plugin_class)
 
@@ -327,6 +333,7 @@ class Plugin:
     :param actions: Custom plugin actions
     :param deprecation: Optional deprecation message.
         If set, the plugin will be marked as deprecated in the UI.
+    :param related_plugins: Optional list of references to related plugins.
     """
 
     plugins: ClassVar[list[PluginDescription]] = []
@@ -342,6 +349,7 @@ def __init__(  # noqa: PLR0913
         icon: Icon | None = None,
         actions: list[PluginAction] | None = None,
         deprecation: str | None = None,
+        related_plugins: list[PluginReference] | None = None,
     ):
         self.label = label
         self.description = description
@@ -350,6 +358,7 @@ def __init__(  # noqa: PLR0913
         self.icon = icon
         self.actions = actions
         self.deprecation = deprecation
+        self.related_plugins = related_plugins
         if categories is None:
             self.categories = []
         else:
@@ -372,6 +381,7 @@ def __call__(self, func: type):
             icon=self.icon,
             actions=self.actions,
             deprecation=self.deprecation,
+            related_plugins=self.related_plugins,
         )
         Plugin.plugins.append(plugin_desc)
         return func

pyproject.toml

@@ -38,7 +38,7 @@ pytest-dotenv = "^0.5.2"
 pytest-html = "^4.2.0"
 pytest-memray = { version = "^1.8.0",  markers = "platform_system != 'Windows'" }
 ruff = "^0.15.0"
-trivy-py-ecc = "^0.68.2.1"
+trivy-py-ecc = "^0.69.3.1"
 types-requests = "^2.32.0.20240907"
 
 [build-system]