diff --git a/archivebox/api/v1_core.py b/archivebox/api/v1_core.py
index 31235e68..7f4f4f37 100644
--- a/archivebox/api/v1_core.py
+++ b/archivebox/api/v1_core.py
@@ -69,7 +69,11 @@ class MinimalArchiveResultSchema(Schema):
     cmd_version: str | None
     cmd: list[str] | None
     pwd: str | None
-    output: str | None
+    output_str: str
+    output_json: dict | None
+    output_files: dict | None
+    output_size: int
+    output_mimetypes: str
     start_ts: datetime | None
     end_ts: datetime | None
 
@@ -109,12 +113,12 @@ class ArchiveResultSchema(MinimalArchiveResultSchema):
 
 class ArchiveResultFilterSchema(FilterSchema):
     id: Optional[str] = Field(None, q=['id__startswith', 'snapshot__id__startswith', 'snapshot__timestamp__startswith'])
-    search: Optional[str] = Field(None, q=['snapshot__url__icontains', 'snapshot__title__icontains', 'snapshot__tags__name__icontains', 'extractor', 'output__icontains', 'id__startswith', 'snapshot__id__startswith', 'snapshot__timestamp__startswith'])
+    search: Optional[str] = Field(None, q=['snapshot__url__icontains', 'snapshot__title__icontains', 'snapshot__tags__name__icontains', 'extractor', 'output_str__icontains', 'id__startswith', 'snapshot__id__startswith', 'snapshot__timestamp__startswith'])
     snapshot_id: Optional[str] = Field(None, q=['snapshot__id__startswith', 'snapshot__timestamp__startswith'])
     snapshot_url: Optional[str] = Field(None, q='snapshot__url__icontains')
     snapshot_tag: Optional[str] = Field(None, q='snapshot__tags__name__icontains')
     status: Optional[str] = Field(None, q='status')
-    output: Optional[str] = Field(None, q='output__icontains')
+    output_str: Optional[str] = Field(None, q='output_str__icontains')
     extractor: Optional[str] = Field(None, q='extractor__icontains')
     cmd: Optional[str] = Field(None, q='cmd__0__icontains')
     pwd: Optional[str] = Field(None, q='pwd__icontains')
diff --git a/archivebox/cli/archivebox_extract.py b/archivebox/cli/archivebox_extract.py
index affea542..7ebdc385 100644
--- a/archivebox/cli/archivebox_extract.py
+++ b/archivebox/cli/archivebox_extract.py
@@ -59,10 +59,10 @@ def process_archiveresult_by_id(archiveresult_id: str) -> int:
         archiveresult.refresh_from_db()
 
         if archiveresult.status == ArchiveResult.StatusChoices.SUCCEEDED:
-            print(f'[green]Extraction succeeded: {archiveresult.output}[/green]')
+            print(f'[green]Extraction succeeded: {archiveresult.output_str}[/green]')
             return 0
         elif archiveresult.status == ArchiveResult.StatusChoices.FAILED:
-            print(f'[red]Extraction failed: {archiveresult.output}[/red]', file=sys.stderr)
+            print(f'[red]Extraction failed: {archiveresult.output_str}[/red]', file=sys.stderr)
             return 1
         else:
             # Still in progress or backoff - not a failure
@@ -202,7 +202,7 @@ def run_plugins(
                         'failed': 'red',
                         'skipped': 'yellow',
                     }.get(result.status, 'dim')
-                    rprint(f'  [{status_color}]{result.status}[/{status_color}] {result.extractor} → {result.output or ""}', file=sys.stderr)
+                    rprint(f'  [{status_color}]{result.status}[/{status_color}] {result.extractor} → {result.output_str or ""}', file=sys.stderr)
                 else:
                     write_record(archiveresult_to_jsonl(result))
         except Snapshot.DoesNotExist:
diff --git a/archivebox/core/admin_archiveresults.py b/archivebox/core/admin_archiveresults.py
index 18b5fadc..749170ab 100644
--- a/archivebox/core/admin_archiveresults.py
+++ b/archivebox/core/admin_archiveresults.py
@@ -185,9 +185,9 @@ class ArchiveResultInline(admin.TabularInline):
     parent_model = Snapshot
     # fk_name = 'snapshot'
     extra = 0
-    sort_fields = ('end_ts', 'extractor', 'output', 'status', 'cmd_version')
+    sort_fields = ('end_ts', 'extractor', 'output_str', 'status', 'cmd_version')
     readonly_fields = ('id', 'result_id', 'completed', 'command', 'version')
-    fields = ('start_ts', 'end_ts', *readonly_fields, 'extractor', 'cmd', 'cmd_version', 'pwd', 'created_by', 'status', 'retry_at', 'output')
+    fields = ('start_ts', 'end_ts', *readonly_fields, 'extractor', 'cmd', 'cmd_version', 'pwd', 'created_by', 'status', 'retry_at', 'output_str')
     # exclude = ('id',)
     ordering = ('end_ts',)
     show_change_link = True
@@ -231,7 +231,7 @@ class ArchiveResultInline(admin.TabularInline):
         formset.form.base_fields['pwd'].initial = str(snapshot.output_dir)
         formset.form.base_fields['created_by'].initial = request.user
         formset.form.base_fields['cmd'].initial = '["-"]'
-        formset.form.base_fields['output'].initial = 'Manually recorded cmd output...'
+        formset.form.base_fields['output_str'].initial = 'Manually recorded cmd output...'
         
         if obj is not None:
             # hidden values for existing entries and new entries
@@ -255,7 +255,7 @@ class ArchiveResultAdmin(BaseModelAdmin):
     list_display = ('id', 'created_by', 'created_at', 'snapshot_info', 'tags_str', 'status', 'extractor_with_icon', 'cmd_str', 'output_str')
     sort_fields = ('id', 'created_by', 'created_at', 'extractor', 'status')
     readonly_fields = ('cmd_str', 'snapshot_info', 'tags_str', 'created_at', 'modified_at', 'output_summary', 'extractor_with_icon', 'iface')
-    search_fields = ('id', 'snapshot__url', 'extractor', 'output', 'cmd_version', 'cmd', 'snapshot__timestamp')
+    search_fields = ('id', 'snapshot__url', 'extractor', 'output_str', 'cmd_version', 'cmd', 'snapshot__timestamp')
     autocomplete_fields = ['snapshot']
 
     fieldsets = (
@@ -276,7 +276,7 @@ class ArchiveResultAdmin(BaseModelAdmin):
             'classes': ('card',),
         }),
         ('Output', {
-            'fields': ('output', 'output_summary'),
+            'fields': ('output_str', 'output_json', 'output_files', 'output_size', 'output_mimetypes', 'output_summary'),
             'classes': ('card', 'wide'),
         }),
         ('Metadata', {
@@ -370,13 +370,13 @@ class ArchiveResultAdmin(BaseModelAdmin):
             if depth > 2:
                 continue
             indent = ' ' * 4 * (depth)
-            output_str += format_html('<b style="padding: 1px">{}{}/</b><br/>', indent, os.path.basename(root))
+            output_html += format_html('<b style="padding: 1px">{}{}/</b><br/>', indent, os.path.basename(root))
             indentation_str = ' ' * 4 * (depth + 1)
             for filename in sorted(files):
                 is_hidden = filename.startswith('.')
-                output_str += format_html('<span style="opacity: {}.2">{}{}</span><br/>', int(not is_hidden), indentation_str, filename.strip())
+                output_html += format_html('<span style="opacity: {}.2">{}{}</span><br/>', int(not is_hidden), indentation_str, filename.strip())
 
-        return output_str + mark_safe('</code></pre>')
+        return output_html + mark_safe('</code></pre>')
 
 
 
diff --git a/archivebox/misc/jsonl.py b/archivebox/misc/jsonl.py
index 11ce6bc6..317de9b4 100644
--- a/archivebox/misc/jsonl.py
+++ b/archivebox/misc/jsonl.py
@@ -174,16 +174,30 @@ def archiveresult_to_jsonl(result) -> Dict[str, Any]:
     """
     Convert an ArchiveResult model instance to a JSONL record.
     """
-    return {
+    record = {
         'type': TYPE_ARCHIVERESULT,
         'id': str(result.id),
         'snapshot_id': str(result.snapshot_id),
         'extractor': result.extractor,
         'status': result.status,
-        'output': result.output,
+        'output_str': result.output_str,
         'start_ts': result.start_ts.isoformat() if result.start_ts else None,
         'end_ts': result.end_ts.isoformat() if result.end_ts else None,
     }
+    # Include optional fields if set
+    if result.output_json:
+        record['output_json'] = result.output_json
+    if result.output_files:
+        record['output_files'] = result.output_files
+    if result.output_size:
+        record['output_size'] = result.output_size
+    if result.output_mimetypes:
+        record['output_mimetypes'] = result.output_mimetypes
+    if result.cmd:
+        record['cmd'] = result.cmd
+    if result.cmd_version:
+        record['cmd_version'] = result.cmd_version
+    return record
 
 
 def tag_to_jsonl(tag) -> Dict[str, Any]:
diff --git a/archivebox/plugins/extractor_utils.py b/archivebox/plugins/extractor_utils.py
index 45755b97..e62cae14 100644
--- a/archivebox/plugins/extractor_utils.py
+++ b/archivebox/plugins/extractor_utils.py
@@ -105,7 +105,7 @@ class ExtractorResult:
 
         # ... do extraction ...
 
-        result.output = 'example.com/index.html'
+        result.output_str = 'example.com/index.html'
         result.status = 'succeeded'
         result.finish()
 
@@ -121,7 +121,7 @@ class ExtractorResult:
 
         self.cmd: list[str] = []
         self.version: str = ''
-        self.output: str | Path | None = None
+        self.output_str: str = ''  # Human-readable output summary
         self.status: str = 'failed'  # 'succeeded', 'failed', 'skipped'
 
         self.stdout: str = ''
@@ -174,8 +174,8 @@ class ExtractorResult:
             print(f"VERSION={self.version}")
 
         # Print output path
-        if self.output:
-            print(f"OUTPUT={self.output}")
+        if self.output_str:
+            print(f"OUTPUT={self.output_str}")
 
         # Print status
         print(f"STATUS={self.status}")
@@ -192,22 +192,17 @@ class ExtractorResult:
         for hint in self.hints:
             print(f"HINT={hint}", file=sys.stderr)
 
-        # Print JSON result for structured parsing
+        # Print clean JSONL result for hooks.py to parse
         result_json = {
-            'extractor': self.name,
-            'url': self.url,
-            'snapshot_id': self.snapshot_id,
+            'type': 'ArchiveResult',
             'status': self.status,
-            'start_ts': self.start_ts.isoformat(),
-            'end_ts': self.end_ts.isoformat() if self.end_ts else None,
-            'duration': round(self.duration, 2),
-            'cmd': self.cmd,
-            'cmd_version': self.version,
-            'output': str(self.output) if self.output else None,
-            'returncode': self.returncode,
-            'error': self.error or None,
+            'output_str': self.output_str or self.error or '',
         }
-        print(f"RESULT_JSON={json.dumps(result_json)}")
+        if self.cmd:
+            result_json['cmd'] = self.cmd
+        if self.version:
+            result_json['cmd_version'] = self.version
+        print(json.dumps(result_json))
 
 
 def run_shell_command(