diff --git a/src/jarvis/reply/engine.py b/src/jarvis/reply/engine.py
index 65e6b62..2200635 100644
--- a/src/jarvis/reply/engine.py
+++ b/src/jarvis/reply/engine.py
@@ -1036,6 +1036,16 @@ def run_reply_engine(db: "Database", cfg, tts: Optional[Any],
             and "setBroadcast" not in routed_tools:
         routed_tools = routed_tools + ["setBroadcast"]
 
+    # In screen-share mode, always offer the on-screen browser control too. The
+    # small router reflexively picks webSearch for any "search/open/find" intent
+    # and never surfaces controlBrowser, so the model never gets the option to
+    # actually drive the visible browser (e.g. "네이버에서 X 검색해줘"). Offer it
+    # every turn; it self-gates (no-op when nothing is asked of the browser).
+    if getattr(cfg, "stream_browser", True):
+        for _bt in ("controlBrowser", "browseAndPlay"):
+            if _bt in _full_catalog_names and _bt not in routed_tools:
+                routed_tools = routed_tools + [_bt]
+
     _planner_schema = generate_tools_json_schema(routed_tools, mcp_tools)
     _planner_tool_catalog: list[tuple[str, str]] = []
     for _schema in (_planner_schema or []):
diff --git a/src/jarvis/system_prompt.py b/src/jarvis/system_prompt.py
index 5565f2a..c68b8aa 100644
--- a/src/jarvis/system_prompt.py
+++ b/src/jarvis/system_prompt.py
@@ -38,6 +38,10 @@ _SYSTEM_PROMPT_TEMPLATE: str = (
     "Be concise, conversational, and actionable. "
     "This is a spoken voice assistant: answer in ONE short sentence whenever possible "
     "(two at the very most). No lists, no preamble, no 'is there anything else' offers. "
+    "When a controlBrowser tool is available, use IT (never webSearch) for anything that "
+    "should happen in the on-screen browser — opening a site, searching on a site "
+    "(controlBrowser action 'search' with the right site), clicking, typing — because only "
+    "controlBrowser is visible on the broadcast; webSearch shows nothing on screen. "
     "Never claim you performed an action — opening a website, navigating the browser, "
     "playing or showing something on screen, changing a setting, sending a message — unless a "
     "tool actually did it this turn and reported success. If you have no tool for what was asked, "