diff --git a/packages/core/src/features/command/repository/CommandRepository.ts b/packages/core/src/features/command/repository/CommandRepository.ts
index c9ec9c31..9dbcee6d 100644
--- a/packages/core/src/features/command/repository/CommandRepository.ts
+++ b/packages/core/src/features/command/repository/CommandRepository.ts
@@ -210,4 +210,7 @@ export interface CommandRepository
 
   /** Returns an iterator of all [ID, {@link TopLevelCommand}] pairs. */
   entries(): IterableIterator<[string, TopLevelCommand]>;
+
+  /** Removes all stored commands. */
+  clear(): void;
 }
diff --git a/packages/core/src/features/command/repository/ReadonlyCommandRepository.ts b/packages/core/src/features/command/repository/ReadonlyCommandRepository.ts
index d83d1788..7913a689 100644
--- a/packages/core/src/features/command/repository/ReadonlyCommandRepository.ts
+++ b/packages/core/src/features/command/repository/ReadonlyCommandRepository.ts
@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2023 Amgelo563
+ * Copyright (c) 2024 Amgelo563
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -26,4 +26,4 @@ import type { CommandRepository } from './CommandRepository.js';
 
 /** Type of immutable {@link CommandRepository}. */
 export interface ReadonlyCommandRepository
-  extends Omit<CommandRepository, 'addCommand' | 'removeCommand'> {}
+  extends Omit<CommandRepository, 'addCommand' | 'removeCommand' | 'clear'> {}
diff --git a/packages/framework/src/features/command/repository/DefaultCommandRepository.ts b/packages/framework/src/features/command/repository/DefaultCommandRepository.ts
index f7f83591..5f05fdcd 100644
--- a/packages/framework/src/features/command/repository/DefaultCommandRepository.ts
+++ b/packages/framework/src/features/command/repository/DefaultCommandRepository.ts
@@ -171,6 +171,10 @@ export class DefaultCommandRepository implements CommandRepository {
     return this.commands;
   }
 
+  public clear() {
+    this.commands.clear();
+  }
+
   public *entries(): IterableIterator<[string, TopLevelCommand]> {
     yield* this.commands.entries();
   }