diff --git a/swh/indexer/metadata.py b/swh/indexer/metadata.py
--- a/swh/indexer/metadata.py
+++ b/swh/indexer/metadata.py
@@ -19,11 +19,11 @@
 
     ADDITIONAL_CONFIG = {
         'tools': ('dict', {
-            'name': 'hard_mapping_npm',
+            'name': 'swh-metadata-translator',
             'version': '0.0.1',
             'configuration': {
-                'type': 'test',
-                'debian-package': ''
+                'type': 'local',
+                'context': 'npm'
             },
         }),
     }
@@ -60,7 +60,7 @@
             'translated_metadata': None
         }
         try:
-            context = self.tools['name']
+            context = self.tools['configuration']['context']
             result['translated_metadata'] = compute_metadata(
                                             context, raw_content)
         except:
diff --git a/swh/indexer/metadata_dictionary.py b/swh/indexer/metadata_dictionary.py
--- a/swh/indexer/metadata_dictionary.py
+++ b/swh/indexer/metadata_dictionary.py
@@ -156,8 +156,8 @@
 
 
 mapping_tool_fn = {
-    "hard_mapping_npm": NpmMapping(),
-    "pom_xml": MavenMapping(),
+    "npm": NpmMapping(),
+    "maven": MavenMapping(),
     "doap_xml": DoapMapping()
 }
 
@@ -193,8 +193,8 @@
     raw_content1 = b"""{"name": "test_name",
                         "unknown_term": "ut",
                         "prerequisites" :"packageXYZ"}"""
-    result = compute_metadata("hard_mapping_npm", raw_content)
-    result1 = compute_metadata("pom_xml", raw_content1)
+    result = compute_metadata("npm", raw_content)
+    result1 = compute_metadata("maven", raw_content1)
 
     print(result)
     print(result1)
diff --git a/swh/indexer/tests/test_metadata.py b/swh/indexer/tests/test_metadata.py
--- a/swh/indexer/tests/test_metadata.py
+++ b/swh/indexer/tests/test_metadata.py
@@ -23,7 +23,11 @@
         return {
             'id': 30,
             'name': 'hard_mapping_npm',
-            'version': '0.1'
+            'version': '0.1',
+            'configuration': {
+                'type': 'local',
+                'context': 'npm'
+            },
         }
 
 
@@ -35,11 +39,11 @@
         self.config = {
             'rescheduling_task': None,
             'tools':  {
-                'name': 'hard_mapping_npm',
-                'version': '0.1',
+                'name': 'swh-metadata-translator',
+                'version': '0.0.1',
                 'configuration': {
                     'type': 'local',
-                    'debian-package': ''
+                    'context': 'npm'
                 }
             }
         }
@@ -69,12 +73,12 @@
         """
         # given
         content = b""
-        tool = "hard_mapping_npm"
+        context = "npm"
 
         # None if no metadata was found or an error occurred
         declared_metadata = None
         # when
-        result = compute_metadata(tool, content)
+        result = compute_metadata(context, content)
         # then
         self.assertEqual(declared_metadata, result)
 
@@ -107,7 +111,7 @@
         }
 
         # when
-        result = compute_metadata("hard_mapping_npm", content)
+        result = compute_metadata("npm", content)
         # then
         self.assertEqual(declared_metadata, result)