diff --git a/packages/kamado/package.json b/packages/kamado/package.json
index ecb24a7..ec61893 100644
--- a/packages/kamado/package.json
+++ b/packages/kamado/package.json
@@ -44,9 +44,11 @@
 		"hono": "4.11.3",
 		"jsdom": "27.4.0",
 		"open": "11.0.0",
+		"picomatch": "4.0.3",
 		"yaml": "2.8.2"
 	},
 	"devDependencies": {
-		"@types/jsdom": "27.0.0"
+		"@types/jsdom": "27.0.0",
+		"@types/picomatch": "4.0.2"
 	}
 }
diff --git a/packages/kamado/src/data/assets.spec.ts b/packages/kamado/src/data/assets.spec.ts
index 73af862..ba16bb9 100644
--- a/packages/kamado/src/data/assets.spec.ts
+++ b/packages/kamado/src/data/assets.spec.ts
@@ -66,4 +66,51 @@ describe('getAssetGroup with virtual file system', () => {
 		expect(result[0]).toHaveProperty('filePathStem', '/about');
 		expect(result[0]).toHaveProperty('extension', '.html');
 	});
+
+	test('should filter files with glob option (AND condition)', async () => {
+		const result = await getAssetGroup({
+			inputDir: '/mock/input/dir',
+			outputDir: '/mock/output/dir',
+			compilerEntry: {
+				files: '**/*.{html,pug}',
+				outputExtension: '.html',
+				compiler: () => () => '',
+			},
+			glob: '**/index.*',
+		});
+
+		expect(result.map((f) => f.inputPath)).toStrictEqual(['/mock/input/dir/index.html']);
+	});
+
+	test('should filter files with glob option matching specific directory', async () => {
+		const result = await getAssetGroup({
+			inputDir: '/mock/input/dir',
+			outputDir: '/mock/output/dir',
+			compilerEntry: {
+				files: '**/*.{html,pug}',
+				outputExtension: '.html',
+				compiler: () => () => '',
+			},
+			glob: '**/subdir/**',
+		});
+
+		expect(result.map((f) => f.inputPath)).toStrictEqual([
+			'/mock/input/dir/subdir/page.html',
+		]);
+	});
+
+	test('should return empty array when glob matches no files', async () => {
+		const result = await getAssetGroup({
+			inputDir: '/mock/input/dir',
+			outputDir: '/mock/output/dir',
+			compilerEntry: {
+				files: '**/*.{html,pug}',
+				outputExtension: '.html',
+				compiler: () => () => '',
+			},
+			glob: '**/nonexistent.*',
+		});
+
+		expect(result).toStrictEqual([]);
+	});
 });
diff --git a/packages/kamado/src/data/assets.ts b/packages/kamado/src/data/assets.ts
index 3644492..08967d1 100644
--- a/packages/kamado/src/data/assets.ts
+++ b/packages/kamado/src/data/assets.ts
@@ -4,6 +4,7 @@ import type { CompilableFile } from '../files/types.js';
 import path from 'node:path';
 
 import fg from 'fast-glob';
+import picomatch from 'picomatch';
 
 import { getFile } from '../files/file.js';
 
@@ -20,14 +21,13 @@ interface GetAssetsOptions {
  * @param options.inputDir - Input directory path
  * @param options.outputDir - Output directory path
  * @param options.compilerEntry - Compiler with metadata configuration
- * @param options.glob - Glob pattern for search targets (if omitted, uses compilerEntry.files)
+ * @param options.glob - Additional glob pattern to filter results (AND condition with compilerEntry.files)
  * @returns List of asset files
  */
 export async function getAssetGroup(
 	options: GetAssetsOptions,
 ): Promise<CompilableFile[]> {
-	const targetGlob =
-		options.glob ?? path.resolve(options.inputDir, options.compilerEntry.files);
+	const baseGlob = path.resolve(options.inputDir, options.compilerEntry.files);
 
 	const fgOptions: {
 		cwd: string;
@@ -39,7 +39,12 @@ export async function getAssetGroup(
 		fgOptions.ignore = [options.compilerEntry.ignore];
 	}
 
-	const filePaths = await fg(targetGlob, fgOptions);
+	let filePaths = await fg(baseGlob, fgOptions);
+
+	if (options.glob) {
+		const isMatch = picomatch(options.glob);
+		filePaths = filePaths.filter((filePath) => isMatch(filePath));
+	}
 
 	const results: CompilableFile[] = [];
 
diff --git a/yarn.lock b/yarn.lock
index 1c5873b..b2d3eb1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3308,6 +3308,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/picomatch@npm:4.0.2":
+  version: 4.0.2
+  resolution: "@types/picomatch@npm:4.0.2"
+  checksum: 10c0/0f46198c2d1beb5061816745355888e94a80a449a49af1ef69723f50e850c678b50cff299bd461f71e8009d46705e7cdeda8c8ffa23815b2e942c83877f855b9
+  languageName: node
+  linkType: hard
+
 "@types/postcss-import@npm:14.0.3":
   version: 14.0.3
   resolution: "@types/postcss-import@npm:14.0.3"
@@ -8658,6 +8665,7 @@ __metadata:
     "@d-zero/shared": "npm:0.17.1"
     "@hono/node-server": "npm:1.19.7"
     "@types/jsdom": "npm:27.0.0"
+    "@types/picomatch": "npm:4.0.2"
     ansi-colors: "npm:4.1.3"
     character-entities: "npm:2.0.2"
     cosmiconfig: "npm:9.0.0"
@@ -8667,6 +8675,7 @@ __metadata:
     hono: "npm:4.11.3"
     jsdom: "npm:27.4.0"
     open: "npm:11.0.0"
+    picomatch: "npm:4.0.3"
     yaml: "npm:2.8.2"
   bin:
     kamado: ./dist/index.js
@@ -11059,6 +11068,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"picomatch@npm:4.0.3, picomatch@npm:^4.0.2, picomatch@npm:^4.0.3":
+  version: 4.0.3
+  resolution: "picomatch@npm:4.0.3"
+  checksum: 10c0/9582c951e95eebee5434f59e426cddd228a7b97a0161a375aed4be244bd3fe8e3a31b846808ea14ef2c8a2527a6eeab7b3946a67d5979e81694654f939473ae2
+  languageName: node
+  linkType: hard
+
 "picomatch@npm:^2.3.1":
   version: 2.3.1
   resolution: "picomatch@npm:2.3.1"
@@ -11066,13 +11082,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"picomatch@npm:^4.0.2, picomatch@npm:^4.0.3":
-  version: 4.0.3
-  resolution: "picomatch@npm:4.0.3"
-  checksum: 10c0/9582c951e95eebee5434f59e426cddd228a7b97a0161a375aed4be244bd3fe8e3a31b846808ea14ef2c8a2527a6eeab7b3946a67d5979e81694654f939473ae2
-  languageName: node
-  linkType: hard
-
 "pidtree@npm:^0.6.0":
   version: 0.6.0
   resolution: "pidtree@npm:0.6.0"