feat: add detect_all() for multi-variant detection

cli/llms_txt_detector.py

@@ -2,7 +2,7 @@
 # ABOUTME: Supports llms-full.txt, llms.txt, and llms-small.txt variants
 
 import requests
-from typing import Optional, Dict
+from typing import Optional, Dict, List
 from urllib.parse import urlparse
 
 class LlmsTxtDetector:
@@ -35,6 +35,28 @@ class LlmsTxtDetector:
 
         return None
 
+    def detect_all(self) -> List[Dict[str, str]]:
+        """
+        Detect all available llms.txt variants.
+
+        Returns:
+            List of dicts with 'url' and 'variant' keys for each found variant
+        """
+        found_variants = []
+
+        for filename, variant in self.VARIANTS:
+            parsed = urlparse(self.base_url)
+            root_url = f"{parsed.scheme}://{parsed.netloc}"
+            url = f"{root_url}/{filename}"
+
+            if self._check_url_exists(url):
+                found_variants.append({
+                    'url': url,
+                    'variant': variant
+                })
+
+        return found_variants
+
     def _check_url_exists(self, url: str) -> bool:
         """Check if URL returns 200 status"""
         try:

tests/test_llms_txt_detector.py

@@ -50,3 +50,28 @@ def test_url_parsing_with_complex_paths():
             timeout=5,
             allow_redirects=True
         )
+
+def test_detect_all_variants():
+    """Test detecting all llms.txt variants"""
+    detector = LlmsTxtDetector("https://hono.dev/docs")
+
+    with patch('cli.llms_txt_detector.requests.head') as mock_head:
+        # Mock responses for different variants
+        def mock_response(url, **kwargs):
+            response = Mock()
+            # All 3 variants exist for Hono
+            if 'llms-full.txt' in url or 'llms.txt' in url or 'llms-small.txt' in url:
+                response.status_code = 200
+            else:
+                response.status_code = 404
+            return response
+
+        mock_head.side_effect = mock_response
+
+        variants = detector.detect_all()
+
+        assert len(variants) == 3
+        assert any(v['variant'] == 'full' for v in variants)
+        assert any(v['variant'] == 'standard' for v in variants)
+        assert any(v['variant'] == 'small' for v in variants)
+        assert all('url' in v for v in variants)