preserve manual formats and require discovery for evidence requests

src/clean_agent_preview.py

@@ -3441,7 +3441,7 @@ def preserve_requested_web_recency(name, args, *, user_text='', prior_search_int
         query = f'{query} site:{domains[0]}'
     if (
         re.search(r'\bofficial\b', user, re.I)
-        and re.search(r'\b(?:manual|handbook|pdf)\b', user, re.I)
+        and re.search(r'\bpdf\b', user, re.I)
         and not re.search(r'(?:filetype:pdf|\.pdf)\b', query, re.I)
     ):
         query = f'{query} filetype:pdf'
@@ -3912,7 +3912,9 @@ async def stream_preview(*, endpoint_url, model, messages, headers, turn_contrac
     budget_completion_attempted = False
     answer_recovery_attempts = 0
     force_no_tools_next_round = False
-    force_web_search_next_round = False
+    force_web_search_next_round = (
+        broad_current_web_request(direct_user_text) and not native_workspace_enabled
+    )
     force_private_browser_next_round = False
     suggestion_retry_required = False
     suggestion_retry_attempted = False

src/turn_contract.py

@@ -3991,6 +3991,8 @@ def broad_web_briefing_request(message: str) -> bool:
         return True
     if re.search(r"\b(?:research|investigate|deep[ -]?dive)\b", text, re.I):
         return True
+    if re.search(r"\b(?:find|gather|look\s+for)\s+(?:supporting\s+)?evidence\b", text, re.I):
+        return True
     if (
         re.search(r"\b(?:latest|recent|current|today(?:'s)?|right\s+now)\b", text, re.I)
         and re.search(

tests/test_clean_agent_preview.py

@@ -1987,14 +1987,19 @@ def test_missing_refinement_query_is_grounded_in_user_request():
     assert args['time_filter'] == 'day'
 
 
-def test_official_manual_search_requests_direct_pdf_results():
+def test_official_manual_does_not_invent_pdf_requirement():
     args = preserve_requested_web_recency(
         'web_search',
         {'query': 'WIKING Miro stove manual official source'},
         user_text='Find the official English WIKING Miro stove manual online.',
     )
 
-    assert args['query'].endswith('filetype:pdf')
+    assert 'filetype:pdf' not in args['query']
+    explicit = preserve_requested_web_recency(
+        'web_search', {'query': 'camera manual'},
+        user_text='Find the official camera manual PDF.',
+    )
+    assert explicit['query'].endswith('filetype:pdf')
 
 
 def test_unknown_official_domain_rejects_reseller_but_accepts_direct_document():

tests/test_turn_contract.py

@@ -35,6 +35,7 @@ from src.turn_contract import (
     'latset ai neews?',
     'whats new in japan rn',
     'what’s new in Sweden',
+    'Compare battery chemistries for home storage. Find evidence and explain tradeoffs.',
 ])
 def test_broad_web_briefings_share_one_search_semantic(prompt):
     from src.turn_contract import broad_web_briefing_request