feat(core,cli): enforce mandatory MessageBus injection (Phase 3 Hard Migration) (#15776)

packages/core/src/tools/activate-skill.ts

@@ -38,7 +38,7 @@ class ActivateSkillToolInvocation extends BaseToolInvocation<
   constructor(
     private config: Config,
     params: ActivateSkillToolParams,
-    messageBus: MessageBus | undefined,
+    messageBus: MessageBus,
     _toolName?: string,
     _toolDisplayName?: string,
   ) {
@@ -145,7 +145,7 @@ export class ActivateSkillTool extends BaseDeclarativeTool<
 
   constructor(
     private config: Config,
-    messageBus?: MessageBus,
+    messageBus: MessageBus,
   ) {
     const skills = config.getSkillManager().getSkills();
     const skillNames = skills.map((s) => s.name);
@@ -169,15 +169,15 @@ export class ActivateSkillTool extends BaseDeclarativeTool<
       "Activates a specialized agent skill by name. Returns the skill's instructions wrapped in `<ACTIVATED_SKILL>` tags. These provide specialized guidance for the current task. Use this when you identify a task that matches a skill's description.",
       Kind.Other,
       zodToJsonSchema(schema),
+      messageBus,
       true,
       false,
-      messageBus,
     );
   }
 
   protected createInvocation(
     params: ActivateSkillToolParams,
-    messageBus?: MessageBus,
+    messageBus: MessageBus,
     _toolName?: string,
     _toolDisplayName?: string,
   ): ToolInvocation<ActivateSkillToolParams, ToolResult> {