fix(ai): mode agent utilise les outils natifs au lieu du bloc obsigate-action (BUG-053)

tests/test_bookslm.py

@@ -729,6 +729,23 @@ class TestGeneralPrompt:
         prompt = build_general_system_prompt(["Alpha"])
         assert "Contexte applicatif actuel" not in prompt
 
+    def test_general_prompt_agent_uses_native_tools(self):
+        """BUG-053: the agent must call tools, not emit `obsigate-action` blocks."""
+        from backend.bookslm import build_general_system_prompt
+
+        prompt = build_general_system_prompt(["Alpha"], agent=True)
+        assert "create_file" in prompt
+        # The text-protocol example block must not be taught in agent mode.
+        assert '"action": "create_file"' not in prompt
+        assert "inclus un bloc de ce type" not in prompt
+
+    def test_general_prompt_classic_keeps_text_protocol(self):
+        """The classic chat endpoint still uses the text action protocol."""
+        from backend.bookslm import build_general_system_prompt
+
+        prompt = build_general_system_prompt(["Alpha"])
+        assert '"action": "create_file"' in prompt
+
     def test_documents_prompt_scope(self):
         from backend.bookslm import build_system_prompt
 
@@ -899,6 +916,30 @@ class TestBooksLMAgentEndpoint:
         )
         assert resp.status_code == 401
 
+    def test_agent_prompt_uses_native_tools_not_text_protocol(self, bookslm_client, monkeypatch):
+        """BUG-053: the agent system prompt must not teach the text protocol."""
+        import backend.bookslm_routes as routes
+        from backend.ai_chat import LLMResponse
+
+        captured = {}
+
+        async def fake_chat_completion(messages, **kwargs):
+            captured["system"] = messages[0]["content"]
+            return LLMResponse(content="ok")
+
+        monkeypatch.setattr(routes, "chat_completion", fake_chat_completion)
+        monkeypatch.setattr(routes, "_resolve_provider_name", lambda requested: "deepseek")
+
+        token, _ = _login_bookslm(bookslm_client)
+        resp = bookslm_client.post(
+            "/api/ai/bookslm/agent",
+            json={"directory": "", "message": "cree un fichier", "mode": "general"},
+            headers={"Authorization": f"Bearer {token}"},
+        )
+        assert resp.status_code == 200
+        assert "create_file" in captured["system"]
+        assert '"action": "create_file"' not in captured["system"]
+
     def test_agent_tool_call_flow(self, bookslm_client, monkeypatch):
         import backend.bookslm_routes as routes
         from backend.ai_chat import LLMResponse, ToolCall