Polish: Move 'Failed to load skills' warning to debug logs (#16142)

packages/core/src/skills/skillLoader.test.ts

@@ -10,6 +10,7 @@ import * as os from 'node:os';
 import * as path from 'node:path';
 import { loadSkillsFromDir } from './skillLoader.js';
 import { coreEvents } from '../utils/events.js';
+import { debugLogger } from '../utils/debugLogger.js';
 
 describe('skillLoader', () => {
   let testRootDir: string;
@@ -19,6 +20,7 @@ describe('skillLoader', () => {
       path.join(os.tmpdir(), 'skill-loader-test-'),
     );
     vi.spyOn(coreEvents, 'emitFeedback');
+    vi.spyOn(debugLogger, 'debug').mockImplementation(() => {});
   });
 
   afterEach(async () => {
@@ -53,8 +55,7 @@ describe('skillLoader', () => {
     const skills = await loadSkillsFromDir(testRootDir);
 
     expect(skills).toHaveLength(0);
-    expect(coreEvents.emitFeedback).toHaveBeenCalledWith(
-      'warning',
+    expect(debugLogger.debug).toHaveBeenCalledWith(
       expect.stringContaining('Failed to load skills from'),
     );
   });
@@ -89,8 +90,7 @@ describe('skillLoader', () => {
     const skills = await loadSkillsFromDir(testRootDir);
 
     expect(skills).toHaveLength(0);
-    expect(coreEvents.emitFeedback).toHaveBeenCalledWith(
-      'warning',
+    expect(debugLogger.debug).toHaveBeenCalledWith(
       expect.stringContaining('Failed to load skills from'),
     );
   });

packages/core/src/skills/skillLoader.ts

@@ -60,8 +60,7 @@ export async function loadSkillsFromDir(
     if (discoveredSkills.length === 0) {
       const files = await fs.readdir(absoluteSearchPath);
       if (files.length > 0) {
-        coreEvents.emitFeedback(
-          'warning',
+        debugLogger.debug(
           `Failed to load skills from ${absoluteSearchPath}. The directory is not empty but no valid skills were discovered. Please ensure SKILL.md files are present in subdirectories and have valid frontmatter.`,
         );
       }